agile series - lean software development

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This presentation is part of the series of Agile presentations shared as part of the Agile training, workshops and coaching. Focus is on providing wholesome information about using Agile beyond the skeleton frameworks.


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Agile Series Lean Software DevelopmentDurgaprasad B. R

Flow, Value, Feedback, Collaboration-dp-1

-dp-AgileKanbanProduct OwnersScrum Master/ Project ManagerXP/ Engineering PracticesScrumbanLeanLean Software DevelopmentScrumAgile HR PracticesAgile LeadershipTest AutomationProgram GovernanceCoachingContinuous Integration/ DeploymentDevelopment ProjectsSustenance ProjectsVerification ProjectsTechnical SupportWeb Application DevelopmentEmbedded ApplicationsLegacy SystemsContinuous ImprovementAgile Offshoring-dp-BacklogBackground7 Principles and 22 Tools of LeanPrinciples and Tool Mapping


Things to knowLean manufacturing developed by Toyota between 1950s & 80sDeveloped by Taiichi Ohno @ Toyota Lean - reason for Toyotas consistent success in a stagnant industry

Initial Agile enthusiasts were inspired by lean manufacturing.

Mary Poppendick (Manufacturing) and her husband Tom Poppendick (software developer) mapped Lean principles to Software developments in their books

Both Mary & Tom are founding members of Agile Alliance

Lean Software Development term usually refers to contents of these books

Lean Software Development contains broad set of Lean Principles applied to software industry.

You dont do Agile or Lean. You do both !!!-dp-Things to knowBoth Lean Software Development and Agile have similar viewpoint - emphasize on people involvement and value driven processes

Many Lean manufacturing tools and leadership practices are still being inherited and helping Agile grow

Lean Concepts like treating unfinished work (code, documents) as inventory, reducing cycle time are being adopted into the software world

Understanding Agile based on Lean concepts helps develop Agile mindset. This helps to continuously improve Agile process and develop people-dp-Lean History1937: Productivity ratio of Japanese to German : 1:3 and German to US: 1:3i.e., it took 9 Japanese to do the job of 1 American Mr. Ohno. -dp-Lean Software DevelopmentLean Software Development is the application of Lean thinking to software development process

Lean does not give specific set of techniques to manage work

It provides a set of principles to help decide how to deliver the most value with the least effort and how to keep improving current techniques

Scrum, Kanban and other workflow management methods can be used to adhere to Lean principles

Scrum, Kanban should be seen as a startpoint and each company should continue to evolve doing improvements that fit their context-dp-Lean Software DevelopmentScrum method to complete work in a cadenced iteration

Kanban method to complete work through limiting work-in-progress and managing flow-dp-BacklogBackground7 Principles and 22 Tools of LeanPrinciples and Tool Mapping

-dp-7 Principles of Lean Software DevelopmentEliminate WasteAmplify LearningDecide as late as possibleDeliver as fast as possibleEmpower the teamBuild integrity inSee the whole7 Principles of Lean software development are drawn from 7 Principles of Lean thinking-dp-22 Tools of Lean (Mapping to Principles)#1 Eliminating Waste

Seeing WasteValue Stream Mapping

#2 Amplify Learning

FeedbackIterationsSynchronizationsSet Based Development#3 Decide as late as possible

Options ThinkingThe last responsible momentMaking decisions#4 Deliver as fast as possible

Pull SystemsQueuing TheoryCost of delay-dp-22 Tools of Lean (Mapping to Principles)#5 Empower the team


#6 Build Integrity In

Perceived IntegrityConceptual IntegrityRefactoringTesting#7 See the Whole

MeasurementsContracts-dp-BacklogBackground7 Principles and 22 Tools of LeanPrinciples and Tool Mapping#1 Eliminate Waste#2 Amplify Learning#3 Decide as late as possible#4 Deliver as fast as possible#5 Empower the team#6 Build Integrity in#7 See the whole

-dp-#1. Eliminate WasteLearn to see WasteValue Stream Mapping

Lean focuses on eliminating waste by focusing on flow of value from request to delivery-dp-What we do every day?Adding Value through a Value added activity


Generating Waste or MUDA through a Non-Value-Added activity

Can you please do an hours worth job in a day!- Taiichi Ohno (Non-value activities adds up to the cost)

#1. Eliminate Waste 1. Learn to see Waste-dp-Eliminating 3 MMuri (Strain / Over burden)

Mura (Unevenness)

Muda (Waste)

#1. Eliminate Waste 1. Learn to see Waste-dp-Muri-Mura-MudaWhen there is mura (variations, unevenness) you do muri (overburden) causing muda (waste)

WasteOverburdenVariationsWaste#1. Eliminate Waste 1. Learn to see Waste-dp-MURIPhysical StrainOver BurdonErgonomic issuesBend to workLifting weightWasteful walkPosture sitting, standing, activityExcessive demand on machines, people

#1. Eliminate Waste 1. Learn to see Waste-dp-Muri in IT World Stopping & StartingMultitasking & Context switchingService requests, hand-offs

#1. Eliminate Waste 1. Learn to see Waste-dp-

MURAInconsistent, irregular, uneven use of people or machines

Lifting 6000 Kg load with a forklift2 trips * 2500 Kg and 1 trip with 1000 Kg3 trips * 1000 Kg and 1 trip with 3000 Kg6 trips * 1000 Kg

#1. Eliminate Waste 1. Learn to see Waste-dp-MuraIron Triangle madnessRoutine expectation of overtimeBelief in magic (planning & tracking)

#1. Eliminate Waste 1. Learn to see Waste-dp-Muda (Waste)Learn to see Waste

Classic wastes (sorted by impact):Over-ProductionInventoryOver ProcessingMotionDefectsWaitingTransport


I dont know who came up with it but people often talk about the seven types of waste. This might have started when the book came out, but waste is not limited to seven types. Theres an old expression: He without bad habits has seven, meaning even if you think theres no waste you will find at least seven types. So I came up with overproduction, waiting, etc., but that doesnt mean there are only seven types. So dont bother thinking about what type of waste is this? Just get on with it.- Taiichi Ohno#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of OverproductionExamplesLocal optimizationInventory buildupMore information than customer needsCreating reports no one readsMaking extra copiesMore information than the next process needsUnwanted features

#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of InventoryExamplesFiles waiting to be worked onOpen projectsOffice suppliesEmails waiting to be readUnused records in the databaseIncomplete work

#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of OverprocessingExamplesUsing more expensive tools in place of simpler onesHaving meetings that are not neededHaving unwanted people at meetingsNot clear agendaRepeated manual entry of dataExcessive paperworkReporting same data to different bossesReporting same data in different formats Reporting same data multiple times

#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of MotionExamplesSearching for information/filesExtra clicks or key strokesClearing away files on the deskGathering informationLooking through manual and catalogsHandling paperworkReplaced items not kept back in its placeOffice Layout#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of DefectsExamplesPrevention: Correction: Failure = 1:10:100Repair / Replacement in warranty is a MudaFor each defect there is a root cause, which is preventable. Prevention is cheaperData entry error, pricing error, missing information, lost records, rework, rescheduled meetings#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of WaitingExamplesWaiting in Queue for your turn Waiting for email, approvalCustomer responseSlow response from systemWaiting for Quality Inspection/Testing#1. Eliminate Waste 1. Learn to see Waste-dp-MUDA of TransportExamplesMoving items to another place for processing and getting it backPhysical movement to get signaturesTeam not being colocated. Need to walk a distance to meet each other

#1. Eliminate Waste 1. Learn to see Waste-dp-Muda Wastes in IT WorldUnnecessary featuresGold platingDelaysHand-offsAfter the fact QCInterim work artifactsMeetings

#1. Eliminate Waste 1. Learn to see WasteUnnecessary Features => Project Cholestrol (Silent Killer of project, that drown projects in complexity) -dp-Muda Wastes in IT WorldHow does a separate annual IT budget lead to waste ?Loss of focus on valueMotion: IT must play budgetary games instead of focusing on enterprise strategic goals; fixed budget imposes both a floor and a ceiling on spending, with neither based on real progress.Emphasis on estimationMotion, transportation: Tracking performance to budget leads to an emphasis on estimation, a non-value-added activity.Limits responsiveness to changeMotion: Promotes central control with long approval processes for any changes. Eliminate Waste 1. Learn to see Waste-dp-Muda Wastes in IT WorldHow does a separate annual IT budget lead to waste ?Conflicting purposes: Target setting, forecasting, resource allocationMuda motion, overproduction, defects rework: The attempt to manage three different issues with the same number leads to several forms of wasteMura Constant number crunching and requests for new estimates pulls people into meetings and interrupts continuous flow.Muri Using the budget numbers inappropriately results in burdening people with useless work (absurdity), while still requiring them to perform their regular work.Targets must be ambitious, forecasts realistic, they cannot be the same numberMixing targets, forecasts and resource allocation creates gaming

- Bjarte Bogsnes : Implementing beyond budgeting


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