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  • 8/12/2019 Logistics Everywhere

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    Since it began to be used by certain

    large US manufacturing firms after

    World War II, logistics management

    has become increasingly effective.

    After the initial attempts which met

    with varying degrees of success,

    both the definition and applicationsof logistics management now seem

    to be quite settled: Logistics refersto the systematic management of thevarious activities required to movebenefits from their point ofproduction to the customerTheconcept of benefits is a multifacetedone that goes beyond the product orservi ce itself to include issues regardi ng

    tim ing, quantity, suppor ting services,location and cost. So a basic definiti on

    of logi stics is the conti nuous process

    of meeting customer needs by ensurin gthe availabil ity of the right benefitsfor the ri ght customer, in the quantity

    and condition required by thatcustomer, at the tim e and pl ace thecustomer wants them (Gourdin,2001:2). Our aim is therefore not to

    try to question the traditional

    approach of logistics management,

    but rather to expound the thesis

    that it is possible to significantly

    enlarge the scope of logistics

    management in order to include

    other fields. These comprise some(and probably many) issues that

    have an important bearing on the

    management sciences as a whole.

    More precisely, we claim that there

    are several examples of disciplines

    which could each be reformulated,

    at least in part, and which should

    be reexamined as problems in

    logistics management. In this first

    paper devoted to expounding thisthesis, we focus for the most part

    on two aspects of management

    sciences chosen essentially

    at random: advertising and

    knowledge management. These

    disciplines, or domains of activity,

    are usually considered to be

    quite far removed from logistics as

    well as from each other. However,

    we claim that the basic problems

    in these disciplines can be

    represented as instances of a quite

    basic and general formulation oflogistics management, where one

    can focus even more than usual on

    the basic concepts of optimization

    and flows. Defending such a thesis

    requires two components: one

    analytic and the other synthetic.

    For the whole approach to make

    sense, the analysis needs to reduce

    logistics management to its very

    core, and this core needs to be

    expressed in a way that is universal

    enough for it to be detected as an

    essential part of the make-up ofother disciplines. At this very

    early stage of our thinking, the

    synthetic part is limited to the

    It is now an accepted f act th at logistics man ag ement a ims to provide

    service qua lity, cost reduction an d eff icient a ft er-sales suppo rt th roug h

    an eff ective monito ring o f supply chain operat ions. In order to achieve

    these goals, logisticians have learned to define clearly the problems they

    have to ma nag e in terms of product f low s optimization and t o use

    metho ds that a re both rigorous and rational in order to solve them.

    In this pap er, we pro pose tha t it shou ld be possible to a pply and to

    generalize the logistical approach to other fields, including those as

    improba ble as advertising and know ledge mana gement

    Logistics Everyw here:Can a Logistical Approach

    help Tackle the Majorityof Managerial Problems?

    36Supply Chain Forum An International Journal Vol. 4 - N1 - 2003 www.supplychain-forum.com

    Charles Tresser

    M athematical Sciences Department

    IBM Thomas J. Watson Research C enter, USA

    tresser@ us.ibm.com

    Gilles Pach

    Centre de Recherche sur le Transport

    et la Logistique

    Universit de la M diterrane

    A ix M arseille II, France

    pache@ iut.univ-aix.fr

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    37Supply Chain Forum An International Journal Vol.4 - N1 - 2003 www.supplychain-forum.com

    case study of the two examplesthat have been previouslymentioned.

    This paper examines thefoundations of logistics management,

    starting with the original aimsand continuing up to the

    most recent approaches andstrategies (including supply chainprocess integration). More than

    just reviewing the subject, we willexplain our belief that, despite its

    obvious evolution and the progressthat has been made, logisticsmanagement has not changed in a

    fundamental way, and has notundergone any radical change sinceit began to be considered as

    belonging to the managementsciences. A typical MBA course

    on logistics management wouldp ro fes s t o i n c reas e t hemanufacturing firms profitability,

    t h u s r es p o n d i n g t o t heexpectations of the shareholdersbut this motivation hides the basic

    thinking behind it. In other words,l o gi s t i c s ( s up pl y c hai n )

    management, which today is stilllimited to playing a supporting rolein helping to improve

    manufacturing and selling, is inessence organized around the

    concepts of optimization and flows.One must also identify theobjectives that are to be optimized

    and under what constraints suchan optimization must be performed(or approximated). We would like

    to emphasize that the twodisciplines which are taken as

    examples have been chosen atrandom. We simply wanted oneunusual example to discuss briefly

    and one example which we could

    discuss at greater length at thisearly stage of the research and

    which would provoke a debate. Asthis paper is interdisciplinary, we

    have made an effort to spell out alltechnical acronyms, even thosethat are standard in logistics

    management. 1

    An or thodox v iewof lo gistics

    Logistics management, which hasbeen subjected to a slow

    maturation process, firstly in theUSA and then in Europe, is deeply

    rooted in the military sciences, thetransition happening when thesoldiers who had been working on

    its development as a modernscience came back to civilian

    business life after World War II.Until quite recently, it was foundedon product flows optimization, a

    perspective that has beenchallenged by the new trendstowards supply chain process

    integration advanced by someresearchers. We take the view that

    this challenge is not motivated by

    any serious breakdown in the role

    of logistics management, as itsevolution over recent years has

    confirmed the presence of onemajor objective: to optimize

    inbound and outbound logisticaloperations in order to increase thefirms profitability and thus

    respond to the shareholdersexpectations. In fact, thecommonalities of the problem

    solving methods of logisticsmanagement are so broad that not

    only do they apply to both recentand historical trends, but they alsoapply to fields quite distant from

    product flows optimization.

    Product flow s optim ization

    Historians have recently shown

    that supplying cities with food fromdistant lands in order to avoid

    famine is a problem with a clearlogistical nature, which arose inEurope at least as far back as theMiddle Ages (see, for instance,

    Abad [2002]). Should we take this,therefore, as the first step towards

    the development of a logisticalapproach? Certainly not, as it isimpossible to identify any real

    global thinking aiming towards thebetterment of the means ofdistribution of provisions: mankind

    was at that time most oftenpowerless in the face of random

    factors over which it had nocontrol. So, while it is certain thatlogistical problems existed, and to

    some extent were routinely solvedlocally through necessity, the veryidea of logistics managementwas

    still to be born. It appears muchlater and its origins are

    undoubtedly military. Anyencyclopedia would refer to itprimarily as the combination of

    transportation, provisioning, andaccommodation designed to ensurethe success of troops in combat. If

    detailed enough, the encyclopediawould probably add that the father

    of military logistics is theNapoleonic General Antoine-Henri

    Jomini, the author of the famousPrcis de lart de la guerre, ounouveau tableau analytique des

    principales combinaisons de la

    stratgie, de la grande tactique et dela pol i t ique mi l i ta i re, published in

    1838, in which he presents logistics

    1. After a first version of the paper had been

    circulated, we received very encouragingcomments from Alan Hoffman, Bill Grey,

    Nicholas Zissos, and from an anonymous

    reviewer of Supply Chain Forum: An

    Internati onal Journal. We also received useful

    informati on from Naoki Abe, John Forrest, and

    John Tomlin about v ario us uses of the methods

    of logistics in aspects of advertising operati ons.

    What these colleagues, now all from IBMsResearch Center, hav e taught us is that several

    authors have, for instance, used optim izati on

    techniques to make a better choice in the

    distribution of advertisements, in classical

    settings and mor e recently on the World Wide

    Web. However, it seems that here we are

    postulating a new approach, whi ch in the case

    of advertising aims to reformulate the

    discipline in a holistic way as a problem of

    logistics management. On the other hand,

    these comments given to us on the appli cationsof optimi zation methods in advertising lead us

    to expect that the approach developed here

    should bear frui t at some stage in the future and

    not just remai n a philosophical perspective.

    When considering

    disciplines where the

    methods of logistics

    (supply chain)

    management have not

    previously been

    applied, it is

    necessary to identifythe entities that need

    to flow, to where they

    must flow and to

    what benefit.

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    as being one of the six parts of the

    art of war (Jomini, 2001).Throughout the twentieth century,

    the field of military logisticsunderwent spectacular developments,

    culminating in Operation Overlord,the landing of the Allied troops on

    the occupied European Continent

    on June 6, 1944. The French

    coastline was fortified and

    defended by particularly well-equipped German troops, therefore

    it was essential to plan the different

    stages of the invasion meticulously

    in order to avoid a repeat of the

    cruel failure of Operation J ubilee,

    which was attempted on the

    beaches of Dieppe in March 1942.

    To this effect, the Anglo-American

    Joint Command assembled theorganizational and logistical means

    necessary to anticipate and

    overcome the constraints of the

    terrain. More recently, during

    Operation Desert Storm in 1991, the

    media referred frequently to the

    importance of the role played

    by logistics as an essential

    complement to the firepower of theAllied armies in the successful

    outcome of the military operation.

    What is more, the quality of

    logistics improved dramaticallyduring the 2003 Iraq war. In a

    recent study for the Institute of

    Comparative Strategy, Richardot

    (2002) also referred to the crucially

    important role played today by theCombat Logistics Force (CLEF) in

    the organization and efficiency of

    the US Navy. Therefore, the link

    between logistics and the success

    of military operations remains

    particularly strong; even if today it

    is widely acknowledged that

    logistics is also (and mainly?) a

    part of management. We mustremember, however, that the

    application of logistics in

    manufacturing firms just after

    World War II was a direct result of

    what had been learned from

    Operation Overlord and the overall

    process of winning the war. The

    distances which had to be covered

    in the liberation of Europe obligedthe formalization of re-supply and

    transport processes, which were

    recognized as being applicable to

    American firms needing to supplycustomers located hundreds or

    thousands of miles from the

    factories.

    This explains why logistics

    management was first perceived

    by the American Marketing

    Association (1948) as the planningof the operations linked to the

    dispatch of goods from the factoryto the consumer (transport,

    handling and warehousing). The

    goal was to adapt and apply the

    tools from Operational Research,

    tools that had initially been

    conceptualized in a military

    context. We will refrain fromdelving further into the history of

    logistics management (see for

    instance Lambert et al. [1998]), but

    we want to stress that its military

    origins strongly influenced its

    development until the 1970s.

    During that time span, the mainquestions continued to revolve

    around the implementation ofconstrained optimization methods

    to help in the dispatching of goods

    from their origination points to

    their destinations. One of the best

    known examples of such a problem

    is the design of the delivery round

    that minimizes the total distance

    covered as a function of the

    stores to be served in a givengeographical area. This is an

    example of the Traveling SalesmanProblem, simple to formulate but

    which quickly becomes too difficult

    for any computer to solve when

    the number of stores increases!

    Logistics management was thus

    limited to the one best way in

    terms of product flows monitoring.

    This focus was justified, as markets

    that were previously local and

    national became progressivelyglobal for multinational corporations,

    a fact which accentuated the

    problem of dispatching goods atlow cost and with high service

    quality. As well informed observers

    of logistics management will know,

    Magee (1968) made a significant

    step forward by introducing the

    concept of logistical processes and

    the three systems:(1) the procurement system;

    (2) the operating system; and

    (3) the physical distribution system.

    However, we believe that a

    continuity exists between theapproaches of the American

    Marketing Association (1948) andof Magee (1968), as the analysis

    remains based upon product

    flows optimization. Magees (1968)fundamentally important contribution

    is to stop limiting the role

    of logistics management to

    that of a physical distributionsystem. Contradicting the formerreductionistviews, he argued that

    the manufacturing firm must also

    optimize product flows inside the

    production cycle (work inprogress [WIP] management) and,

    downstream to the operating

    system, inside the physical supply

    cycle (materials management), if it

    wants the total logistics system or

    pipeline to function correctly. But

    is it possible to view this as a truly

    radical departure when, for Magee

    (1968), the issue remains theoptimum planning of logistical

    operations using increasingly

    sophisticated tools, such as

    program evaluation and review

    techniques (PERT) and material

    requirement planning (MRP)? By

    the time his book appeared, the

    world had grown more complexand the markets where goods were

    consumed had become larger and

    more distant, creating the need

    for an even more effective

    coordination of transport, productionand warehousing activities. More

    than ever before, logistics

    management experienced an urgent

    need for managerial proceduresthat would use mathematical

    algorithms to bring about the best

    solution at the right moment.

    In fact, even a few years later,

    and despite its revolutionary

    contributions, the way Heskett

    ( 1977) en vi s i o ns l o gi s t i c smanagement remains captive to the

    same product flows optimizationparadigm. The economic landscape

    has changed since the beginning

    of the recession in the Western

    countries, and in the particularly

    difficult context of price competition,

    firms must adjust their logistics (in

    the physical distribution system,the operating system and the

    procurement system) to adhere as

    closely as possible to the

    downstream demand in order to

    reduce costs. Long before such

    reasoning became fashionable,Heskett (1977) indirectly introduced

    the idea that efficiency dependedon a double paradigm: lean

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    production and agility. From aconcrete standpoint, it is the actualsales, and no longer the sales

    forecast, that must trigger theoperations of the supply of raw

    materials, production, transport,etc. Thus, Heskett (1977) implicitlyconceptualized the just-in-time

    (J IT) strategy, at the very sametime as it first began to be appliedin Japan by Toyota! But while that

    vision was incontestably aninnovative one, it remained

    centered on manufacturing firms,whose survival depended on theoptimization of their own logistics

    systems. A good JIT strategy willfirst induce a reduction in the stocklevels of goods and materials, while

    it may also be the case that stocklevels abruptly increase at the

    retailer or wholesaler locations.

    Supply chain processintegration

    Do the recent trends in logisticalthinking challenge the orthodox

    vision in terms of flowsoptimization? It is possible toanswer yesand noat the same

    time. According to the majority of

    authors (see, for example,Underhill [1996], and Mentzer et al.[2000]), all of the firms involved invertical exchange relationships

    insist on the importance of the newintegrative dimension of thelogistical processes: specifically,

    that in order to bring the rightproduct at the right time and at the

    right place to the consumer, it isnecessary to coordinate all of thelogistical operations along the

    supply chain. Effective logisticsmanagement thus becomes the

    means to generate a close anddurable collaboration betweensuppliers, manufacturers, retailers,

    and third party logistics (TPL)service providers, so that togetherthey create value for the customer

    (Grey et al., 2003). However, wemust also admit that the aim of asupply chain process integration

    remains to create value for theshareholders, which in turn

    requires enforcing product flowsoptimization.

    At a fundamental level, even if thisvision is sometimes disputed, asupply chain corresponds to aset of operations supporting: (1)

    the logistical activities of the

    procurement of materials in anetwork of first-tier and second-tierproviders; (2) the transformation of

    materials into semi-finished orfinished goods; and (3) the physicaldistribution of the finished goods

    to customers. The basic idea isthat these activities and operations

    must be perfectly synchronizedwithin the framework of supplychain management (SCM), so that

    customers can benefit from thebest possible service quality at the

    lowest possible cost. Stevens(1989) suggested the existence offour steps leading to the emergence

    of genuine SCM: Step 1 is distinguished by

    complete functional independence

    in so far as each functionoperates quite separately from

    all the others, protected bybricks (stocks) allowing fordifferences between their

    operating rhythms. In step 2, manufacturing firms

    recognize the urgent need for aminimum coordination betweenrelated functions, e.g. marketing

    and physical distribution, so asto eliminate a number ofmalfunctions.

    Next, step 3 is there to improvethe process of coordination by

    implementing the comprehensive

    planning of internal flows fromdownstream to upstream,

    leading to: Step 4, when supply chain

    members finally become aware

    that they are merely part of awhole.

    The virtue of this evolutionaryapproach is to highlight the fact

    that SCM refers to a succession of

    trade-offs (Lambert et al., 1998).Trade-offs occur within a firm (e.g.,

    between purchasing and materialsmanagement, materials management

    and production, etc.). The purposeis to find overall solutions, which,through intra and inter-organizational

    collaboration, will avoid a wasteof resources and will increasethe profitability of supply chain

    members. An interesting exampleis that of convenience goods

    manufacturers, where largeretailers and TPL service providerswork together to create the

    packaging for a new product toreduce logistical costs from thefactory to the store shelves. One

    could also quote the example of anautomotive manufacturer and itsmain suppliers deciding to

    implement a common milk-rounddelivery system: a collection of

    vehicles that visit suppliers in apredetermined and negotiatedorder, at pre-agreed times during

    the night, from which there followsa reduction of congestion at theassembly plant (Lamming, 1983).

    I n h i n d s i gh t , an d w h i l e

    acknowledging the progress madein logistics management over thelast fifteen years or so up until now

    in 2003, it is clearly appears thatSCM does not represent a radicaldeparture. Of course, SCM

    emphasizes the importance of theindispensable collaboration

    between supply chain members inan extended enterprise (Naccaratoet al., 2000), but the object of

    analysis still remains the product and information flows. On

    the other hand, thanks totechnological progress, andnotably computer technologies

    (from core hardware to softwareand algorithms, and more recently,pervasive computing, which

    considerably enhances reach andcommunication), it is now much

    easier to optimize under constraintthan it was, for example, fifteenyears ago, and this is where the

    essential change resides. Forinstance, a small and medium-sizedenterprise (SME) can now in real

    time tackle certain optimizationproblems that would have been too

    complex for most large companiesin the 1980s. Thanks to these newtechnologies, the supply chain

    members can adapt faster to all

    sorts of environmental changes andexecute effective time-based

    strategies, where the object is toconceive new products faster than

    the competition and then tomanufacture and deliver them tothe customer more quickly and

    with no mistakes. For over half acentury, logistics management hasthus proven its capacity to improve

    the performance of manufacturingfirms and, on a more global level, of

    networks of firms, by relying on alogistical approach with a universalambition. From this point of view,

    might logistics managementbecome the means to help resolvemanagerial problems in areas far

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    removed from product flowsoptimization?

    The central t hesis anda f irst e xample

    Clearly, the goal we have set toourselves is quite ambitious and

    challenging, but the rewards couldbe enormous for most of themanagement sciences. The process

    began with a strong hunch thatlogistics was extremely prevalent,

    with possible examples to be foundin most of the sciences, from thePrinciple of Least Action in physics,

    to the way a cell works in biology.We will refrain from formulating ourthesis on such general grounds and

    instead, we will concentrate beforehand on a formulation that focuses

    on the management sciences. Theformulation we provide is still quitebrief but we expect that many

    people will join us in the comingadventure, and will help us todevelop the fundamentals as well

    as the applications of the ambitiousprogram implicitly outlined in our

    thesis. We have randomly picked adiscipline from within or close tothe field of management that would

    be as improbable a subject aspossible to use, namely advertising,which will be considered as the

    very first example, albeit quitesuperficially at this stage. However,

    the reader may already see apossible benefit of the logisticalapproach, such as the generation of

    a logistical language, a formulationof goals that would permeate all

    divisions of the manufacturing firm,and the provision of qualitativeframeworks. We are among those

    who believe that qualitative

    analysis is important when it is notdone merely as a gesture. After all,

    arent qualitative improvementsoften far superior to quantitative

    ones? 2

    Logistics everywhere :

    analysis and the thesis ina nutshell

    Having taken a vaguely reductionist

    ap pr o ac h , w hi c h , l o o sel yspeaking, condenses logistics to

    the optimization of certain flows,we had to alter our approach whenpassing from pre-SCM to SCM.Considering SCM forced us to refer

    to product and information flows

    rather than just to product flowswith regard to what needed to beanalyzed and then optimized. This

    is where the yes and noanswers to the question of whether

    or not SCM has brought a radicalchange to the field of logisticsmanagement converge. If one

    believes that the flows referring toproducts in pre-logistics management

    are essential, then one has to

    consider SCM as a revolution.Otherwise, it becomes more of a

    quantitative progress, where oneoptimizes over as many parametersas the available technologies

    permit and as far as the efforts ofoptimization provide returns thatbenefit the shareholders.

    The point of view we have adopted

    and pushed to its limits as the basisof our thesis is that to some extent,the logistics management approach

    can be omnipresent in the way onetackles all sort of problems, fromthose found in the sciences to

    those encountered in management.Moreover, while restricting ourselves

    to the issues covered in this paper,we believe that most, if not all, ofthe issues relating to decision support,

    organization, processes and indeedeverything pertaining to the

    running of the manufacturing firm,both as an individual entity and aspart of a wider web of networks,

    can benefit from the language andmethods of logistics management.In particular, we believe that the

    transition to SCM was mostly dueto the emergence of technologies

    permitting the processing of biggerand bigger optimization problemsand the collection of more and

    more information that could help in

    the optimization process. But weintend to go much further and, in

    what we think is a natural nextconceptual step, we propose to

    tackle most other problems inmanagement as if they wereproblems in logistics management.

    Once the other aspects of the life ofa firm, or of networks of firms, have

    been dealt with in this way, weexpect that a large scale integration

    of the scope of logisticsmanagement will take place, but wewill refrain from making any

    attempt to do that here: the bricksmust be made before a wall can bebuilt. In fact, we will limit ourselves

    for the time being to providing twoexamples that will hopefully shownthe broad community of people

    interested in all aspects ofmanagement an illustration of the

    sound basis for our ambitiousprogram. Our aim for now is torepresent certain classical problems

    as examples of logistics. A widerange of expertise may be neededto describe how to manage these

    logistical problems by themselves,even before the grand unification

    across the board takes place. It maybe the case that the logisticalapproach only brings qualitative

    changes to certain problems. Webelieve that this may still be quitevaluable, and we will begin with the

    field of advertising that mayprovide one of the toughest challenges

    to our thesis. We expect that if wecould stimulate even the possibilityof a discussion about advertising as

    an example of logistics, it wouldprovide some justification for thevalidity of our proposal.

    Before we get to the first example,

    we want to state our belief that itwould be unfair to condemn ourapproach just because a disciplineonly permits a qualitative discourse,

    and for instance, only qualitativeoptimization after being reinterpreted

    as a form of logistics. In fact, evenin the most traditional applications

    of logistics management, to reduceits impact to optimization in themost mathematical and formal

    senses would be an importantmistake. Thinking about using

    empty trucks for new services on

    40Supply Chain Forum An International Journal Vol.4 - N1 - 2003 www.supplychain-forum.com

    2. This is the idea defended notably by

    Wil liam s (1986, 1990), where he indicates that

    when confronted with combinatorial problemsthat are too complex, mathematical

    optimization fai ls because the computing

    power that w ould be needed is way beyond our

    reach, and in some cases will be forever so

    (the computation would last many tim es the

    life of the uni verse with the fastest machi ne

    that could ever be buil t). Mathematical

    optimization must then give way to some form

    of heuristics (which may then possibly use

    mathema tics). Willi ams (1986, 1990) il lustrates

    this point in the context of the Traveling

    Salesman Problem alr eady mentioned. We are

    indebted to John Tomli n for telli ng us about the

    work of Paul Willi ams after this paper was first

    circulated, and to Paul Willi ams for helping us

    gain access to hi s work so quickly. Some of

    Paul Willi amstheses do indeed seem rathersimil ar to ours, but he promotes a perspective

    of optimization everywhere, a point ofview that now has many supporters, rather

    than our position of logistics managementeverywhere, which m ight assume a smallereverywherebut seems to not have beenexpli citly advocated before.

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    the return journey, or imagining newshapes of parts to improve packagingby allowing much better weight-to-

    volume ratios are just someexamples of how qualitative inputs,

    that are facilitated by formulating theright problems, can have dramaticimpacts. Therefore, the strategy

    which we propose to use in order toshow the benefits of our thesis innew disciplines is to map the

    principles of logistics managementas completely as possible to the new

    discipline (or vice-versa), and inparticular, to try to make an earlyidentification of the quantities that

    need to be optimized and of theconstraints that are to be found.

    Advertising as an exam pleof logistics

    In order to represent advertising as a

    logistics problem, one needs to thinkof: (1) the message as the equivalentof the product to be transported; (2)

    the minds of the people who are thepotential customers as the points of

    delivery (e.g., for certain products

    for which a recognition is sought

    beyond the existing customer base),and (3) the advertising media as the

    vehicles of transportation. Of course,it may be appropriate to distinguishbetween the message that was

    intended and the message that wasreceived. This is good news for us! Infact, we interpret this example of

    discovering a natural distinctionbetween messages as being aninstance of a phenomenon that we

    expect to encounter quite often.In the case at hand, thanks to such a

    rethinking, the intended messagebecomes the product to be delivered,

    while the slogans, trademarks, etc.,become the package. This may haveimplications regarding the relativeimportance of the elements which

    constitute the problem and forthe ways they are dealt with. Oneshould remember that in complex

    logistical problems: those that arenot examples of simple linear

    optimization problems, substantialchanges in approach are sometimesnecessary before one can proceed

    with any form of systematicoptimization. For instance, building avery expensive new road may be the

    best solution in certain typicallogistical problems. We leave thedescription of any novel advertising

    solutions to the experts, but existingpractices such as advertising during

    the Super Bowl or the World Seriesmight be considered as theadvertising equivalent of that sort of

    expensive road building. We willdevote the next few lines toexamining whether one can identify

    constraints and objective functionswhich would permit a more effective

    mapping of advertising to thelogistics framework. Essentially, wehave shown so far that the parallels

    exist, but to little commercial or evenconceptual advantage. Further

    consideration reveals that we may

    need metrics to even start viewingadvertising as a case foroptimization.

    Arriving at a point where metrics can

    be used may be the hardest task eachtime one wants to seriously applylogistics management methods to a

    new discipline. If performances ofthe whole system are the onlymetrics that are easy to apply, then

    empirical trials are a possible meansto derive benefit from thelogistical/optimization approach. For

    instance, the methods found inexperimental economics could be

    used, permitting the measurement ofthe performances of logisticsmanagement methods in a new

    discipline. Then, the correlation ofthese measurements to acceptedsigns of success could be evaluated.

    However, there might be cases, withadvertising being possibly one of

    them, where one should not be tooambitious to begin with, and insteadbe content with using a logistical

    perspective to help teach andotherwise communicate aboutcertain fields of human thought or

    activity, (although Remark 1, below,is much more optimistic). We may

    also find that in cases where tasksare accomplished instinctively, butwhere hard decisions also have to be

    made at times, the language oflogistics might allow experts andprofessionals to better formulate

    their responses to the questionswhich confront them. It also seems

    reasonable to expect that unifyingthe language will help communication

    within the firm as well as betweenfirms.

    From know ledge management

    to logistics

    Knowledge management (or KM), asit is known, at least in the circles of

    information technology (IT), whereeverything of any importance isreferred to by an acronym, is an

    interesting field. Facilitating accessto knowledge when it is neededfor the good of the firm or to

    benefit humankind, or even moreambitiously, to help generate the

    knowledge needed to solve

    previously unsolvable problemssounds like an impossible dream.

    Who would not want themanagement of knowledge to work

    Conjecture: A fundamental

    reinterpretation of a problem as

    a logistical issue should often

    necessitate a rethinking of

    its definition in order to map the

    discipline in question to a

    f ra me wo r k o f l o g i s ti c s

    management. Such attention

    devoted to the mapping of the

    problem would improve the

    benefits of the logistical

    approach.

    Remark 1: As mentioned

    previously, we have learned ofwork that uses optimization

    techniques to improve the

    distribution of advertisements on

    the World Wide Web (see, for

    instance, Langheinrich et al.

    [1999], and Tomlin [2000]). John

    Forrest told us that he was involved

    in trying to use optimization

    techniques to distribute advertising

    in the UK as early as 1967.

    Magazines were the vehicles used

    for the advertisements in question,

    but the results were unsatisfactory,

    probably because of the limited

    power of the computers available

    at that time. This work was not

    preceded by a full reformulation of

    the advertising problem in terms of

    logistics management, but it

    certainly helps support the idea

    that our proposed approach most

    probably has a direct commercial

    value in addition to its

    philosophical implications and to

    the way it may facilitatecommunication inside the firm and

    between firms.

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    better? KMs place in the toolkit of

    the trend setting executive probably

    disappeared in 2001, after enjoying a

    period of tremendous popularity.

    This followed the publication of two

    books in 1995 whose titles signaledthe initial hopes for the success of

    the new field: The know ledge-creating

    company (Nonaka and Takeuchi,

    1995), and Wellsprings of k nowl edge

    (Leonard, 1995).

    A snapshot of how the field evolved

    can be seen in the reprinted

    collection of some major

    management articles on the subject

    of KM (Harvard Business Review,

    1998), starting with an early article

    by Drucker (1988). The author

    claimed that within twenty years, thetypical (large) business would

    be knowledge-based. Contemporary

    with that review, let us also mention

    the monograph Working knowledge

    (Davenport and Prusak, 1998). Most

    contributors to the KM literature

    were also the people who benefited

    most directly from KM, e.g., through

    conferences, consulting, or teaching.

    This may explain why, during its few

    years of intense success, KM

    depended, not only, as was often

    stated, on cultural factors, but alsoon the models for national politics

    and economics, the attitudes of Wall

    Street, on whether long term success

    was expected from the firm, on

    whether or not the firms that paid

    most for KM consulting had a

    strategy which looked beyond the

    end-of-quarter bottom line, the

    morality in corporate board rooms

    and more factors of this kind, which

    were mostly hidden from view.

    At least one other element thatwould have helped cement the place

    of KM has been ignored: namely, an

    effective and authentic form of

    artificial intelligence (AI). As we will

    see, this more than anything else

    explains KMs fall from grace (while

    less ambitious sub-disciplines such

    as unstructured data analysis began

    to flourish). A logistical approach

    leads us to rethink what should be

    the fundamental concepts of KM, as

    we shall describe in the first

    paragraph. In the second paragraph,

    in terms of what we consider to befundamental concepts, we shall re-

    examine the usual building bricks of

    the KM discourse: data, information,

    and knowledge. Then, in the third

    paragraph the logistics approach is

    explicitly invoked, although we

    consider that the approach has

    already been beneficial in the way

    the logistical perspective conditionsthe whole problem (see Remark 5

    below, in particular).

    Fundame ntal concepts

    The basic objectives of KM first need

    to be defined. The list can be

    extended, but it has to contain the

    following three elements, to which

    we will restrict our analysis: data,

    information, and knowledge. Indeed,

    several authors also recognize that

    some classification of these three

    basic elements is a necessaryprerequisite to any serious

    discussion. Our approach is to

    consider that these three elements

    are not fundamentals, but refer to

    some real or also perhaps to some

    virtual or imaginary universe. We

    also consider that these elements

    depend on who attempts to describe,

    understand, exploit, improve, or in

    general transform such a universe,

    and for what reasons. The underlying

    rationale for this is that we are

    not only interested in the worldo f b u s i ne s s , b u t a l s o i n

    interdisciplinary issues (even if we

    are not considering the physical and

    natural sciences in this paper). The

    importance of data, information and

    knowledge is not restricted to the

    business world and we want to

    comprehend their wider significance.

    Here are the elements we consider

    necessary to define the basic

    concepts that need to be governed

    by KM:

    World elements. These compriseobjects (including living entities

    and people), or at least the

    objective aspect of them, which in

    some cases may be all that is

    accessible or necessary. Also

    included are entities that allow a

    spatial description: (1) reports or

    stories that need space-time

    descriptions, with a specific time

    span, (2) events or records of

    events which are essentially

    instantaneous, and (3) a mixture of

    the above, which might be needed

    to describe a personality, forexample.

    People and groups. Groups have

    concurrent interests, but people in

    groups may also have divergent

    interests, some supporting thegroups goals and some quiteindependent of them. There may

    be neutral entities, and groups orindividual whose position is wellestablished but unknown to some

    or all of the other parties. Groupsusually come with explicit

    structures that are partly orcompletely hierarchical, althoughsometimes these may be hidden.

    Cultural models. These includepolitical trends, opinions, public orsecret agendas, etc., which directly

    condition the ways of thinking and

    the actions of both the sending and

    receiving parties. Messages sent and received . It is the

    communication between partiesthat allows them to develop theirinterests in a particular direction.

    Messages should also bedistinguished according to theirformal contents, intended contents

    and perceived contents. Scales. This refers to the scales,

    precision levels, and/or granularityat which one expects tounderstand a problem.

    Revisiting data , inform ationand know ledge

    At this early and fundamental stage

    of the logistical approach to KM, wefeel that from the above list, the

    world elements and scales are thecrucial dimensions on which to base

    the analysis. This explains why weplace so much emphasis on the pairWeS (World element, Scale). A strong

    indication of its importance is thefact that we believe it allowed us toarrive independently and quickly at

    concepts central to KM, whilebringing to light ideas which may go

    beyond what has been done before.

    The data set attached to a WeS is the

    collection of everything that isrequired to provide a full

    Remark 2: Already, the reader

    will probably detect some effects

    of logistical thinking in the above

    list of basic concepts: a reflection

    of the desire to describe the

    problem in terms that facilitate its

    mapping to the framework of

    logistics.

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    description of the world element inquestion at a given scale. A dataelement, data point, unit of data, or,

    sometimes-just data, is an atom ofdescription. For instance, a stockname, a time and a price say

    $102.23 of the Alpha stock at thattimeforms a data set, in fact a data

    set of a special kind, as it fullydefines a WeS. In this example, theprice ($102.23) is a data point.

    However, the digit zero is not data,while the collection (0, third digit indecimal notation) is data, of limited

    value, which is contained in theprice.

    A more ordinary data set, as it isdifferent form the WeS, is attachedto a bottle of milk at a macroscopic

    scale. This data set comprises abottles shape, the volume it

    contains, the volume it is supposedto contain, its condition andcleanliness, whether or not the

    closing device is intact, theproduction date and the expiry

    date. To this, one could add anydescription of the product (e.g., is it

    regular or low fat?), the quantitiesof nutrients, the nutrients listed onthe bottle, the region of provenance

    of the particular batch of milk inquestion, the findings of theveterinary examination of the

    cows, an assessment of theveterinarians competence and of

    the competence of the person

    responsible for evaluating theveterinarian, the historical basis for

    trusting the judgment of the

    veterinarian, etc., and the list isprobably far from complete!Information has several meaningsthat should be clearly differentiated.

    Firstly, it is possible to analyze it asa collection of data intended

    (by those who select and/or

    communicate it) to provide usually

    partial, but sometimes full,knowledge about a WeS. Therein

    lies a strong cultural dependence.One can also see it as a collection ofdata that is thought (by those who

    receive and/or use it) to providesome, again usually partial, butsometimes full, knowledge of a WeS;

    and therein also resides a strongcultural dependence. In addition,

    information is presented primarilyin the form of a message, or moregenerally, in the form of a vehicle to

    store or communicate knowledgeabout a WeS.Finally, when it becomes knowledge,

    information can be split into twotypes, passive knowledge (PK) and

    active knowledge (AK), a division

    that could be the first of further orconcomitant dichotomies as we will

    soon discuss:

    The PK of an individual or of agroup is the set of data and

    information that can be used bythis individual or group. Some ofit may be inaccessible to anyone,

    so long as its existence is knownand provided it can be retrieved

    when needed; Implicit PK is the knowledge that

    could be generated from a given

    data and information set. Thisknowledge may be arrived atvery easily or possibly only after

    very detailed analysis;

    AK is knowledge that can helpdecide, act on or generate new

    knowledge.

    The three concepts of data,

    information, and knowledge as wehave developed them so far are

    considered in a different way to theorthodox KM approach. Remember

    that we have taken the statement ofDrucker (1988) to be a lemma,

    instead of a definition, which is astrong argument in favor of our

    approach. The following dichotomybetween tacit and explicit

    knowledge is, on the other hand,pretty much central to the

    development of KM in the 1990s.The notions of tacit knowledge

    versus explicit knowledge wereintroduced by Polanyi (1983) in the1960s, and used by Nonaka (1991)

    and Nonaka and Takeuchi (1994,1995) to formulate a theory of

    organizational learning aroundthe theme of the conversion of

    knowledge between these twoforms. To us, these notions appear

    more obscure than but essentiallyparallel to AK and PK, although this

    may not be the case for KM expertswho have worked with them for along time.

    Calling logistics to the rescue

    We want to demonstrate that thelogistical perspective helps gives

    KM some structure, and that thispoint of view gives a clear

    indication as to why KM failed (orat least has failed so far). What we

    really hope for is to help breathenew life into KM (whether or not its

    name remains the same), as webelieve (and everyone agrees) that

    the management of knowledge willbe essential in years to come, be itonly because so many firms

    accumulate massive quantities ofdata and information, often

    accompanied by massive quantitiesof knowledge. It is clear that those

    who are the most able to make useof some of these commodities will

    have a decisive advantage. So wefirst need first to ask the

    fundamental question What iswhat? in order to map standard

    logistics to KM. Such a mappingexercise should be a basicrequirement for any new incursion

    of logistics into the intellectualworld, and it will often be

    Remark 4: Receiving any

    information changes the degree

    of knowledge about a WeS,

    possibly to the extent of

    revealing the previously

    unsuspected existence of that

    WeS, or of any type of that

    particular WeS. Information can

    also change comprehension,

    and further high functions of thebrain, but we will make every

    effort to avoid discussing such

    matters here.

    Remark 5: According to

    Davenport and Prusak (1998:2),

    the remark that information is

    data endowed with relevance

    and purpose can be traced at

    least as far back as the paper by

    Drucker (Harvard Business

    Review, 1998) that we have

    mentioned previously. We fully

    agree with Druckers statement

    (1988). However we consider it

    to be a lemma, instead of a

    definition, as we think it fits in

    logically with the definitions of

    data and information we have

    provided.

    Remark 3: No one will

    probably ever need, nor ever

    be able to determine the data

    set of any WeS except for

    simple ones such as those

    given in the first example.

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    necessary to repeat the exercise,sometimes frequently, when trying tointensify the logistical approach. As

    well as understanding the logisticalequivalents in the KM field, it will

    also be necessary to do this for eachnew field. Here are some elements ofthe mapping:The goods: the data, the

    information, and more generallyany element pertaining to

    knowledge (some have expirationdates, others long-shelf lives);

    The shelves: the heads ofpersonnel, at various levels in the

    organizations hierarchy; Other shelves (for goods with long

    shelf-lives): the vehicles for the

    transmission of knowledge, i.e.,items that contain it;

    The packages: the form in whichdata, information, and knowledge

    will be stored, retrieved, and shared

    or used in some form or another;

    The transport vectors: the variousmeans to transport or transfer

    knowledge, from lectures tovideotapes and training, etc.

    Next, we shall look at the

    optimization problem(s) that mayoccur with the elements that are the

    equivalents of traditional logisticalentities according to the mapping.

    Then, if not sooner, we must

    consider the objectives of the

    companies involved, the nature ofthese companies, the economic

    system to be used, etc. Somequestions arise simply as a result of

    trying to discover the companysobjectives as in any logisticalproblem; for instance: Is the firm only working for the

    shareholders; is it a familybusiness built to last a few

    generations or something inbetween?

    Are there any ambitious goals, or isthere a non-financial/non-economicagenda that also needs to be part

    of the objective function design?

    Does it operate in an environmentof harsh, unadulterated capitalism,or in a more socially oriented

    environment? Is the company only interested in

    the end-of-quarter bottom line? Ifnot, what are the firms otherpriorities?

    Are the long-term aims establishedonly for the sake of credibility andto defend short-term stock price,

    or is there a genuine long-termstrategy?3

    Depending on a combination of

    choices and constraints, an obviousquantity to be optimized could besomething like the profit, the

    efficiency, or the long-term averaged

    profit of the company. However, athorough consideration of the large-scale components of the objectives isnot enough to help, or to justify the

    existence of KM: the personalobjective functions of people in thefirm have to also be taken into

    account. In fact, not everyone maywant all knowledge to circulate

    freely, especially if freely also meansfor free (i.e., free from benefits to thesources of knowledge). Let us now

    mention a fact that is worthy ofconsideration: everyone is happy to

    receive knowledge, if they are notobliged to prove how that knowledgewas acquired. However, being a free

    source of knowledge may bedangerous, besides being potentiallypainful and unrewarding. It will be

    essential to figure out the rightmetrics, rewards, related incentivesand deterrence systems in order for

    things to evolve properly.4 So webelieve that the merely thinking in

    terms of logistics managementwould bring considerable

    improvements to the design of KMstrategies.

    What KM seems to have mostseriously failed to fully acknowledgeis that the movement or transfer of

    some forms of knowledge, especiallyof the tacit or active kinds, either

    from brain to brain, or from brain tomachine (to brain), may range fromdifficult to impossible given current

    capabilities and constraints. It alsomay be too costly (and cost becomes

    a more obvious issue when one deals

    explicitly with optimization issues).Too much of the KM literature has

    very strongly advocated that there ismuch more to knowledge than just

    data, information, and passiveand/or explicit knowledge. In doingso, the KM gurus have set impossibly

    high expectations by promptingpeople to expect much more from

    the field than is realisticallyachievable, given current constraintsand limitations. This issue, which

    stands as an obstacle to the successof KM, is of course related to an issuementioned previously, namely, the

    lack of an explicit description of theobjectives of the companies

    involved.5

    We believe that no serious

    improvement can be made in themost significant aspects of KM before

    major progress is seen in the field of

    AI. This statement, in fact, seemsalmost superfluous, as it is

    knowledge handling, and thereforesomething similar in nature tointelligence that we are talking about.

    However, before AI makes realprogress, advances in KM can be

    achieved by lowering expectations,and this is happening right now(often using dilute forms of AI such

    as automated text analysis to theirmaximum effect given currentcapabilities. Another example is that

    many tools have been developed thatallow the employee to find out useful

    information about their own firm andabout global issues (mostly using theInternet). Most of this progress on

    the effective management ofknowledge is not made under theumbrella of KM.

    The packaging of information has

    indeed begun to happen usingtechnologies such as the extendedmarkup language (XML), and we

    expect that the combination of XML

    and modern search engines,combining basic search,

    categorization and prioritizationfunctions and substitutes with

    3. One expects affordabi lity to be a necessary

    conditio n for the firm to seriously consider long

    term i nvestments, but it should not be the sole

    factor.

    4. This has certainly been understood by some,

    although it is, to say the least, often very well

    hidden in the KM literature.

    5. For instance, the more the fi rm car es only

    about its shareholders, the more it considers itsemployees as commodities, and the more

    anxi ous it is to extract tacit knowledge from

    these employees, then the difficulty in

    managing thi s aspect of know ledge becomes

    greater.

    Remark 6: Some firms (e.g.,

    technology companies) create

    knowledge as value per se, others

    create knowledge mostly as a

    means to improve the production

    of what the company manufacturesor sells (e.g., know-how, work

    methods, controls, workflows,

    etc.).

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    semantics, could now permit theefficient mapping of the

    management of routine butessential knowledge to logistics.

    Examples of such knowledge couldbe the identities of accountholders, how the damages on cars

    rented for business are covered,who in the company is qualified tospeak about a particular aspect of

    strategy, etc. The basicclassification of knowledge that we

    have proposed, and the concept ofWeS in particular, will help in thisprocess. With the passing of time,

    AI or related concepts will continueto develop, allowing, for instance,the better handling of unstructured

    information.6 These improvements

    allow complex mappings fromlogistics management to KM to beperformed. It is also clear that theissues in information handling have

    already become so complex thatoptimization of this handling has

    begun to help, and in fact is nowvital. The issues we haveexpounded in this discourse have

    certainly started being usedimplicitly, as the recent progress inmilitary logistics cannot be

    explained in any other way. Thisbrings us back full circle to where it

    all started from.

    Conclusion

    For about twenty years, logisticsmanagement has undergone

    important developments, both inmanufacturing and retailing firms.

    At the same time, it has benefitedfrom a universally acknowledgedacademic recognition, as

    corroborated by the proliferation ofinternational conferences and

    specialized journals. Europe has, inpart, caught up with the USA, inparticular through the

    development of organizationalinnovations regarding products andinformation flows management.

    Today, the leading logisticalstrategies seem to be universalisticin nature and some authors are not

    afraid to assert that there isundoubtedly one best way to

    develop a sustainable competitiveadvantage. Somewhat provocatively,

    this paper is aimed at showing that

    logistics management is evenbroader in its application than

    most, if not all, observers have

    dared to propose so far. It offers away of thinking that, in terms of

    logistical language, vision andmethods will allow us to

    comprehend and solve managerialproblems that may be quite farremoved from the traditional field

    of logistics management.

    The position developed here might

    have been operationallyunworkable until a few years ago

    before the computing revolutionbegan, but it is hard to believe thatit will not bear fruit in a world

    where the handling of informationhas evolved and improved to suchan extent. Hopefully, the rigid

    treelike organizations will be

    rearranged into more reasonableand supple structures or intoframeworks lacking rigidstructures using modern

    communication methods to moreeffectively perform the roles ofcommunicating information,

    knowledge, commands, andfeelings. To some extent, logistics

    may help to redesign the veryorganization of the firm, if onefollows the practical implications of

    our thesis. Of course, one does notneed to believe that logistics is

    everywhere in order to hope forthis to happen (see, for instanceEvans and Wurster [2000]), but we

    do believe that this point of viewwill help those involved by allowingthem to consider from a fresh

    perspective the challenges theyface today and will face in the

    future.

    We cannot end without mentioningthat the Integrated Supply ChainManagement (ISCM) that IBM has

    adopted, with earnings of $5 billionin the first year of implementation,goes a long way beyond SCM, evenif it still falls short of the ultra-global vision of logisticseverywhere that we advocatehere. The new view of logistics thatISCM represents is now wellaccepted, assuming, in short, thatlogistics is almost everywhere andin any event, is much moreimportant than ever before. Aftersharing its experience with itsmajor customers, IBM is already

    proposing a properly scaled-downversion of ISCM to SMEs under thename of Integrated Supply ChainSolution.

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    6. Some observers argue that anything thatresembles AI is AI, so that, fo r i nstance, speech

    recognition i s AI. Although we have taken the

    opposite point of vi ew merely for the sake of

    clarity, we wil l not enter into thi s debate, whose

    outcome has no impact on our thesis.

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