Agile lean software development principles

Agile Software Development(Lean Software Development Method)

HAIRINA BINTI HAMDZAHSeptember 15, 2015

Introduction Agile Software Development

• Agile – able to move quickly and easily

• Agile software development – process that support the agile philosophy

• Philosophy-

• Suitable for -

- Small or medium size scale

- Custom system development within organization

• Other agile software development – XP, Scrum, kanban method, Crystal Family and many more

Lean Software Development

• Implementation of a lean manufacturing principles into a software development model

• Lean manufacturing principle originated from Toyota production system in Japan

• Main objective: Reduce waste in a system and produce a higher value for the customer

Key Principles of Lean Software Development

Eliminate waste

Build in integrity

Amplify Learning

Defer commitment

Deliver fastRespect people

Optimize the whole

Principal 1: Eliminate waste

– Waste: anything that didn’t improve quality of code, didn’t reduce time and effort in development process and didn’t provide real value too customer (tools:VSP mapping)

– Three types of wasteWaste in code development

Waste in project management

Waste in workforce potential

Principal 2: Amplify Learning

– Softw. Development is a continuous learning process (need to learn as project develop)

– Predictable performance is driven by feedback

Principal 3: Defer Commitment

– Deciding irreversible decision as late as possible to keep option open for as long as practical

– Why? ->The later the decision are made, the more information we will have to make the right decision. *important of timeboxs

– >adaptable, change is manageable

– >avoid/ delay cost of change

Principal 4: Deliver Fast

– Customer like a rapid deliver

– Less time for a customer to change their mind

– Avoid over-enginered solution

– Complement defer commitment

Principal 5: Respect People

– Empower those who add value: letting people who add value use their full potential

– To get individual to be motivated and take responsibility -> be responsible for the outcome and authorized to make it happen

Principal 6: Build in Integrity /Quality

– perceived integrity and conceptual integrity

– Making sure customers expectation are met

– Key is early and often communication , feedback, testing

Principal 7: Optimize the whole

– Sub-optimization: Tendency to solve problem by breaking system into parts and optimize each and individual part

– Usually will be leading to “tragedy of the commons”

– Look at the entire value stream

– Continuously review product and process development.

Success story

• BT Adastral,

50% sooner than expected.

80% ROI in the first year.

• Timberline Software (now part of The SageGroup),

estimates that improvements in quality, costs,and time to market were all greater than 25%

-On time delivery

-Scrap reduction

-Space utilization

-Total project work reduce

-Project rework reduce

-Project costs reduce

-Improve productivity

- Success depend on discipline, commitment and technical skills

- Role of a business analyst is crucial

- Flexibility in requirement

Conclusion

• Effective principals in terms of cost-related

• Effective principals in terms of quality-related

• Need a strong team work and discipline from all party involved including customer/client

~Q&A~

Thank you for listening