Introduction to Lean Software Development
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Introduction to Lean Software Development - Presentation Transcript
- Lean Software Development
Guy Nirpaz,
EVP R&D, GigaSpaces Technologies
guy.nirpaz@gmail.com - 2
About me:
EVP R&D @ GigaSpaces Technologies
Using Scrum for 5+ years
Background in Software Architecture/Development/Management
Contact
guy.nirpaz@gmail.com - 3
About GigaSpaces- >100 direct customers, 2000+ deployments
- Unique position as the leading Cloud Application Server
- Objectives
Taste Lean Software Development principles in 45 minutes
Differences and similarities between scrum and lean - Origins of Lean Thinking
1908 - Model T
1915 - 500,000 T, 50% increase per year
1965 - 2,000,000
1980 - Japan intruded, Quality revolution started
2006 - 12.7 B lost
1930 - founded
1950 - Ohno invented TPS
1991 - The whole world learnt from Toyota
2006 - passed Ford
2007 - passed GM and world’s largest
2007 - earned 15.7 B
2008 - renamed Toyota Corporation; 45 of 50 Industrial classification - Principles of Lean Thinking
Value - Specify the value desired by the customer
Eliminate Waste - Identify the value stream for each product providing that value and challenge all of the wasted steps (generally nine out of ten) currently necessary to provide it
Continuous Flow - Make the product flow continuously through the remaining, value-added steps
Pull - Introduce pull between all steps where continuous flow is possible
Pursue Perfection - Manage toward perfection so that the number of steps and the amount of time and information needed to serve the customer continually falls - Lean Software Development
- Principlesof Lean Thinking
1. Eliminate Waste
2. Increase Feedback
3. Delay Commitment
4. Deliver Fast
5. Build Integrity In
6. Empower the Team
7. See the Whole - How is lean different?
- Examples:
Sprint without product release
Manual work
Integrations
Specifications
Buffers - “Can’t release every 4 weeks” – let’s increase iteration length!
The famous ‘overheads’ - Solution:
Understand ‘Why’ – what is the root cause
Eliminate! - Eliminate Waste
- The seven (+1) wastes
Partially Done Work
Extra Processes
Extra Features
Task Switching
Waiting
Motion
Defects
Unused Employee Creativity - Deliver as fast as possible
- Kanban
Todo
In Progress
Done
Item 1
Item 2
Item 3
Item 4 - Kanban
Todo
In Progress
Done
Item 1
Item 2
Item 3
Item 4 - Kanban
Todo
In Progress
Done
Item 5
Item 1
Item 2
Item 3
Item 6
Monitor WIP
Item 4 - Kanban
- Information Radiators
Visualize the Workflow
Self Organizing Teams
Empower the workers
Accountability
Stop the line culture - Build Integrity In
Perceived Integrity
Users ‘love’ the product
Emotional reaction
Conceptual Integrity - Lean vs. Scrum
Why
Lean is the resonating
What and How
Scrum is a detailed recipe
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