D.LAPERE - September 2013

Athena Consulting

Introduction to Lean IT and

Lean Software Factory

Designed for Board members and Executives

for general knowledge purpose

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Consulting

Lean management philosophy (reminder)

Operational Stability

Production Flow

First-time Quality

Lean System

• Quality at the

source (no control)

• Avoid rework

• Autonomation

(Man – Machine

synergy)

• Workplace organization

• Standard work

• Total Productive Maintenance

• Stream value

mapping

• Kaizen

• Pull production

(Kanban)

• Just-in-time

• Quick changeover

Best quality – Lower cost – Shortest lead time – Customer focus

Organize and streamline your

production in order to

remove all waste.

Waste being what a customer

would not willing

to pay for.

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Consulting

7 principles of lean thinking (reminder)

Lean thinking

Eliminate

Waste

Amplify

Learning

Decide as

late as

possible

Deliver as

fast as

possible

Empower the team

Build

Integrity in

See the

whole

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Consulting

Translation to the IT world

Useless documentation

Extra features

Inactivity & timeout

Defects, abnormalities

Feedback

Iteration

Synchronization

Don’t dive into details

Avoid rigidity

Prioritize

End-user expectations

Tunnel effect

Small batches

Self-determination

Commitment

Motivation

Leadership

Lean thinking

Waste

Learning

Decide late

Deliver fast

Empower

Integrity

See the hole

Short iterations

Refactoring

Testing

No repetition

No extra features

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Consulting

Principle # 1: Eliminate Waste

What? How? Excess documentation

Extra features

Building of wrong things

Waiting for information

Task switchning and motion

Defects

Track inefficiency

Reduce inefficient management activity

Rethink authorization systems

Retrain your brain to see waste

Map & check your value stream

Eliminate anything that doesn’t add value

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Consulting

Principle # 2: Amplify Learning

What? How?

Feedback

Iteration

Synchonization

Run tests as soon as code is written

Real-time feedback loop

Immediate customer response

Short useful cycles

Configuration Management System

Automated testing

High level of communication

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Consulting

Principle # 3:Decide as Late As Possible

What (to avoid)? How? Drilling into details too fast

Respect order of creation without priority

Rigidity

High stakes decisions have to be made firstly

Full view over time

Feature highest value topics first

Change is manageable

High stakes decisions can be deferred until the last

moment

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Consulting

Principle # 4: Deliver as Fast as Possible

What? How? Avoid tunnel effect

Limit time for the end-users to change their

minds

Large batches of work take longer to process

Rapid delivery

Just-in-time

Reduced cycle time

Steady rate of arrival: release small & prioritized packages of

work

Steady rate of service: parallel the processing of work to avoid

bottlenecks

Develop an Economic Application Model (breakdown

of costs)

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Consulting

Principle # 5: Empower the Team

What? How? A mature organization

looks at the whole system (Lean Assumption #1)

A mature organization fosuses on learning and empowers people (Lean

Assumption #2)

Self determination: the team design their own working

procedures

Motivation: create a sense of purpose at work ; clear,

achievable

Commitments: the team make it’s own

Leadership: master developers and respected leaders

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Consulting

Principle # 6: Build Integrity In

What? How? Communication between developers and end-users

Immediate feedback

Scaffolding

Smaller systems, single team, short iterations

Design driven development, Test driven development

Integrity: simplicity, clarity, suitability, no extra features

Testing : customer tests and developer tests, automated

testing

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Consulting

Principle # 7: See the Whole

System dynamics

Common pattern

Root cause analysis

Measurements

Contracts

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Consulting

Lean Software Factory

Application Service Center / Lean Software Factory

Managed as a factory

Applying lean principles

Able to develop in agile mode

Outfitted with a Continuous Integration Platform

Continuous Integration platform

Maintain a code repository

Automate the build (thru build servers)

Real-time control source code quality

Perform tests (automated unit test and integration test)

Test in a clone of production environment

Benefits

Reduce rework (thus reduce cost and time) : less debug

Reduce production costs

Improve maintainability (source code quality)

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Consulting

DevOps

The ultimate way to extend Lean principle to the whole IT System

Projects driven through Programs

Development – production cultures are merged

Lean inspiration : small lots

Application (Software Engineering)

Quality Assurance

Infrastructure (Technology Operations)

DevO

ps

Thanks for your attention

Athena Consulting