Introduction to Lean Software Development 100

7/31/2019 Introduction to Lean Software Development 100

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Lean SoftwareDevelopment

Guy Nirpaz,EVP R&D, GigaSpaces [email protected]


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About me:

EVP R&D @ GigaSpaces Technologies

Using Scrum for 5+ years

Background in SoftwareArchitecture/Development/Management


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About GigaSpaces

2008 Federal Reserve System Developers Conference

>100 direct customers, 2000+ deployments Unique position as the leading Cloud Application Server


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Objectives

Taste LeanSoftwareDevelopment

principles in 45minutes

Differences and

similaritiesbetween scrumand lean


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Origins of Lean Thinking

1908 - Model T1915 - 500,000 T,50% increase per year1965 - 2,000,000

1980 - Japan intruded,Quality revolutionstarted2006 - 12.7 B lost

1930 - founded1950 - Ohno invented

TPS1991 - The whole

world learnt fromToyota2006 - passed Ford2007 - passed GM and

worlds largest2007 - earned 15.7 B2008 - renamed

Toyota Corporation;45 of 50 Industrial

classification


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Principles of Lean Thinking

Value - Specify the value desired bythe customer

Eliminate Waste - Identify thevalue stream for each product providingthat value and challenge all of the wastedsteps (generally nine out of ten) currentlynecessary to provide it

Continuous Flow - Make theproduct flow continuously through theremaining, value-added steps

Pull - Introduce pull between all steps

where continuous flow is possible


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Lean Software Development


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Principlesof LeanThinking

1. Eliminate Waste

2. Increase

Feedback3. DelayCommitment

4. Deliver Fast5. Build Integrity In

6. Empower the

Team


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How is lean different?


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Examples:1. Sprint without product

release2. Manual work3. Integrations4. Specifications5. Buffers


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Cant release every 4 weeks lets increase iterationlength!

The famous overheads


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Solution:1. Understand Why what is

the root cause2. Eliminate!


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Eliminate Waste


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The seven (+1) wastes

Partially Done Work

Extra Processes

Extra Features Task Switching

Waiting

Motion

Defects

Unused Employee Creativity


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Deliver as fast as possible


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Kanban

Todo InProgress

Done

Item 1

Item 2

Item 3

Item 4


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Kanban

Todo InProgress

Done

Item 1

Item 2Item 3

Item 4


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Kanban

Todo InProgress

DoneItem 1

Item 2

Item 3

Item 4

Item 6

Item 5

Monitor WIP


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Kanban


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Information Radiators

Visualize the Workflow

Self Organizing Teams

Empower the workers Accountability

Stop the line culture


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Build Integrity In

Perceived Integrity

Users love the product

Emotional reaction Conceptual Integrity


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Lean vs. Scrum

Why

Lean is theresonating

What andHow

Scrum is adetailedrecipe

Introduction to Lean Software Development 100

Documents

Transcript of Introduction to Lean Software Development 100