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    CHAPTER # 9

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    Allocation of physical resources

    Directly relates to scheduling

    Goal of Resource Allocation is to Optimize Use ofLimited Supply

    Requires making trade-offs time constrained

    resource constrained

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    Normal: Most likely task duration, like m inChapter 8

    Crash: Expedite an activity, by applyingadditional resources

    Specialized or additional equipment

    More people (e.g., borrowed staff, temps) More hours (e.g., overtime, weekends)

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    Crashing buys time, but nothing comes free Potential cost areas Additional equipment/material

    Extra labor Negative effects on other projects

    Reduced morale, from excessive hours/shifts

    Lower quality, from the pressure of time, inexperienced

    and tired staff If you want it bad, youll get it bad . . .

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    Two basic principles

    1. Generally, focus on the critical path

    Usually not helpful to shorten non-critical activities Exception: When a scarce resource is needed elsewhere,

    e.g., in another project

    2. When shortening project duration, choose least

    expensive way to do it

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    Compute cost/time slope for eachexpeditable activity

    Slope = crash cost normal costcrash time normal time

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    Activity Predecessor Days(normal, crash)

    Cost(normal, crash)

    a - 3, 2 $40, 80

    b a 2, 1 20, 80

    c a 2, 2 20, 20

    d* a 4, 1 30, 120

    e** b 3, 1 10, 80

    * Partial crashing allowed** Partial crashing not allowed

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    Different terms for similar concept

    Fast-tracking (construction), Concurrentengineering (manufacturing)

    Both refer to overlapping project phases

    E.g., design/build, or build/test

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    Pros:

    Can shorten project duration

    Can reduce product development cycles Can help meet clients demands

    Cons:

    Can increase cost through redesigns, excessivechanges, rework, out-of-sequence installation,and more

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    9-15

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    Assuming fixed performance specifications,tradeoff areas must be in time or cost

    Time-limited or resource-limited

    If all three dimensions are fixed, the system is

    overdetermined Normally, no tradeoffs are possible

    But, something has to give . . .

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    9-17

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    Resource loading: types and quantities ofresources, spread by schedule across specific

    time periods One project, or many

    Identifies and reduces excess demands on a firmsresources

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    9-19

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    9-23

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    Resource leveling minimizes period-by-periodvariations in resource loading, by shifting taskswithin their slack allowances

    Advantages Less day-to-day resource manipulation needed

    Better morale, fewer HR problems/costs

    Leveling resources also levels costs, simplifies budgetingand funding

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    CONSTRAINED RESOURCESCHEDULING (CRS)

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    Major Resource Constraints:

    Failure of a supplier to produce

    Failure of a supplier to deliver the assignment

    Loss of a resource

    Theft of a resource

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    Approaches to CRS

    Heuristic Method

    Optimization Model

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    Heuristic Methods

    PERT/CPM

    Analyze

    resource usage

    Identifypriority rule

    Allocate thescarceresource

    Results are good enough for manypurposes

    Used for large, non linear, complexproblems

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    As soon as possible As late as possible Shortest task first Most Resources first

    Most critical followers Most Successors Arbitrary

    CommonPriority

    Rules

    MinimumSchedule slippageBest utilizationof facilities

    Minimumsystem occupancytime

    Minimum slack first

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    Optimizing Method

    Mathematical Programming

    Enumeration

    MULTI PROJECT

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    MULTI-PROJECTSCHEDULING AND

    RESOURCE ALLOCATION

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    Criterias of Project Scheduling

    Schedule Slippage Most Important

    Time past a Projects due date

    Penalty costs

    Loss of goodwill of producer

    Resource Utilization

    Smoothes peaks and valleys of resourse usage

    Eliminate the concept of WAIT

    In-Process Inventory

    Amount of work waiting due to shortage of resources

    Requires trade off between cost of inprocess inventoryand cost of resources

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    Heuristic Techniques

    1. Resource Scheduling Method dij= increase in duration resulting when activity j follows activity i

    =Max [0;EFi-LSj] EFi= early finish of activityi; LSj= latest start of activityj

    2. Minimum Late Finish Time3. Greatest Resource Demand

    Priority= djrij dj= duration of activity rij=per period requirement of resource iby activityj

    4. Greatest Resource Utilization

    5. Most Possible Jobs

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    A Multi-Project Sceduling Heuristic

    A project plan is a nested set of plans, composed

    of a set of generalized tasks, each of which is

    decomposed further.

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    The Problem: The amount of resources is limited in

    successive scheduling periods

    The Solution:

    Find a schedule best satisfyingsequence and resource constraints

    A schedule minimizing overallduration of entire network

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    Before allocation of resources, consider the quantity ofresources available

    Weists heuristic allocates resources to activities in orderof their early start times

    Depletion of resources before completing task listsresults in delay of remaining task

    We mayborrowresources or deschedule currently activenoncritical task

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    GOLDRATTS CRITICAL

    CHAIN

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    The Problems

    Thoughtless optimismo PMs dont accept lateness to be their fault

    o Ignore risk management

    Capacity should be set to equal demand

    o Dont consider projects to be assembly lines

    o Deny that capacity is needed to exceed demand for projects

    The Student syndrome

    o Students always want more time to complete a projecto Given more time they delay near deadline

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    Multitasking to reduce time

    o Ignoring that switching back and forth between tasks is not

    an efficient and effective way

    Complexity of network makes no difference

    o Complexity, uncertainity and merging paths all join to maketrouble

    People need a reason to work hard

    o Project workers keep a lot of slack time

    o Cut back on time allowances

    Game playingo Workers add extra time, resource and budget to

    their portion of work

    o Blaming each other

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    EXAMPLEThe Inefficient Way

    A1 10

    A2 30

    A3 50

    B1 20

    B2 40

    B3 60

    EXAMPLE

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    EXAMPLEThe Right Way

    A1 10

    A2 20

    A3 30

    B1 40

    B2 50

    B3 60

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    The Critical Chain

    Scheduling on

    the basis ofavailability ofscarce

    resources

    Addition oftime buffers

    Durationshould be

    decreasedenough toavoid thestudent

    syndrome

    Activities to

    be carried outin parallel arenot

    independent

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    Activities can be ordered according to:

    Resource dependencies Technological requirements

    The longest of the paths is the Critical Path

    Two sources of delay:

    Delay in one or more critical activities

    Delay in one more activities in feeder chain

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    THE END OF CHAPTER 9

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    QUALITY ASSURANCE

    AGENCY

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    ADRESSING A PROBLEM

    The present status of Quality in higher learning

    institutions of Pakistan is quite questionable.

    Pakistani Universities are not capable of meeting the

    international standards of higher education.

    Goal of International compatibility and competitiveness

    is not achieved.

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    Mission:

    To integrate the concept of quality assurance in higherlearning with enhanced levels of international

    compatibility through capacity building.

    Vision Statement: Developing a viable and sustainable mechanism of quality

    assurance in higher learning sector to meet the rising

    challenges of transforming the country into a knowledge

    economy.

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    GOALS

    Policy making anddeveloping practicalguidelines of

    quality assurance incross cutting areasof higher learning.

    Developing

    guidelines forestablishing ofQuality

    Enhancement Cellsand Monitoring &

    Evaluation of theseQECs.

    Capacity building toenhance thestandards of qualityassurance in higher

    education atnational level.

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    Authorities Responsible for: Sponsoring:Higher Education Commission

    Execution:Higher Education Commission

    Operation and Maintenance:Concerned University/Institution

    Time required for completion of project:

    18 months (6 months for preparatory work)

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    LocationofProject: HEC (Main

    campus)

    Areatob

    eserved:

    Pakistan as awhole.

    People of allage groups

    and incomelevels.

    CostE

    stimates: Total annual

    recurring budgetRs.19,700,000

    Break down of

    10,000,000 forQECs @1,000,000 perQEC and9,700,000 forQAA.

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    Functions of QAA

    Developing practical guidelines and policies forestablishing QECs at public sector universities.

    Monitoring& Evaluation of all QECs.

    Evaluation of the activities and uniformity of pace andstandards across country.

    Capacity building of all professional staff of Quality

    Enhancement Cells. Providing Foreign trained personnel as

    Master Trainers to the staff.

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    GUIDELINES FO DEVELOPMENT OF QEC

    The Quality Enhancement Cell (QEC) will be established in each

    University/degree awarding institute.

    Promoting public confidence.

    Review of quality standards by auditing academic standards and the quality of

    teaching, learning and management.

    Review of academic affiliations with other institutions. Defining clear and explicit standards as points of reference to the reviews to

    be carried out.

    Developing qualifications framework.

    Developing program specifications.

    Develop quality assurance processes and methods of evaluation.

    Capacity building training from HEC.

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    Sr # Item Estimated cost Financial allocation

    1 Capital cost 3,660,000 HEC and 10 relevantpublic universities

    2 Annual recurringcost of QAA duringexecution

    9,400,000 HEC

    3 Annual Recurringcost for 10 QECs@one million per QEC

    10,000,000 10 Relevant publicUniversities

    4 Total 23,060,000

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    Sr# Items Quantity for

    (QECs)

    Estimated cost in

    Pak-Rs(i)

    Quantity for

    QAA

    Estimated cost

    Pak-Rs(ii)

    1 Computers 20@ 2/QEC 1,000,000 3 150,000

    2 Laptops 1 140,000

    3 Telephone/fax/mail Included in recurringcost

    Will be shared by therelevant University

    @25,000 permonth

    300,000

    4 Printers 10@ 1/QEC 100,000 1 150,000

    5 Scanner As per requirement 1 20,000

    6 Furniture As per requirement 200,000 As perrequirement

    200,000

    7 Papers/catridges 200,000 Cartridges forProfessionalColour printer

    200,000

    8 Motor vehicle for MD 1 1,000,000

    9 Total of (i) & (ii)=3,660,000

    1,500,000 2,160,000

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    Sr# Title Number Salary

    1 Managing Director 01 80,000

    2 ProgrammeCoordinator

    01 30,000

    3 Training Coordinator 01 25,000

    4 Data Analyst 01 10,000

    5 P.A/Stenographer 01 8,000

    6 Naib-Qasid 01 3,0000

    7 Driver 01 4,000

    8 Total salaries permonth

    160,000

    9 Total salaries perannum

    1,920,,000

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    18 months (6 months for preparatory work)

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    Quality Assurance Agency (QAA) is engaged in systematic implementation ofquality enhancement procedures/criteria to attain improved levels of internationalcompatibility and competitiveness at institutional and program level.

    Established in 2005, QAA is engaged in developing a viable and sustainablemechanism of quality assurance in the higher learning sector in order to meetthe rising challenges of transforming the country into a knowledge economy.