Embedded development life cycle
- 1. Embedded Development Life Cycle (EDLC) By, Mrs.S.Revathi
- 2. EDLC is an Analysis-Design-Implementation based problem solving approach for the product development. – Analysis – What product need to be developed – Design – Good approach for building it – Implementation – To develop it Why EDLC? • Essential in understanding the scope and complexities involved in any embedded product development. • Defines interaction and activities among various groups of product development sector. – Project management – System design and development – System testing – Release management and quality assurance •
- 3. OBJECTIVES OF EDLC • Aim of any product development is the Marginal benefit • Marginal benefit = Return on investment • Product needs to be acceptable by the end user i.e. it has to meet the requirements of the end user in terms of quality, reliability & functionality. • EDLC helps in ensuring all these requirements by following three objective – Ensuring that high quality products are delivered to user – Risk minimization and defect prevention in product development through project management – Maximize productivity
- 4. Ensuring high quality products • The primary definition of quality in any embedded product development is return on investment achieved by the product. • In order to survive in market, quality is very important factor to be taken care of while developing the product. • Qualitative attributes depends on the budget of the product so budget allocation is very important. • Budget allocation might have done after studying the market, trends & requirements of product, competition .etc.
- 5. Risk minimization & defect prevention through project management • Project management (PM) – Adds an extra cost on budget – But essential for ensuring the development process is going in right direction • Projects in EDLC requires Loose project management or tight project management. • PM is required for – Predictability • Analyze the time to finish the product (PDS = no of person days ) – Co-ordination • Resources (developers) needed to do the job – Risk management • Backup of resources to overcome critical situation • Ensuring defective product is not developed
- 6. DIFFERENT PHASES OF EDLC • A life cycle of product development is commonly referred as the “model” • A simple model contains five phases – Requirement analysis – Design – Development and test – Deployment and maintenance • The no of phases involved in EDLC model depends on the complexity of the product
- 9. Need of EDLC • Any embedded product may evolves as an output of a need. • Need may come from an individual/from public/from company(generally speaking from an end user/client) – New/custom product development – Product re-engineering – Product maintenance
- 11. ANALYSIS
- 12. DESIGN: Deals with the entire design of the product taking the requirements into consideration and focuses on how the functionalities can be delivered.
- 13. DEVELOPMENT AND TESTING • Development phase transforms the design into realizable product • Design is transformed into hardware and firmware • Look and feel of the device is very important • Testing phase can be divided into • Unit testing – independent testing of hardware and firmware • Integration testing – testing after integrating hardware and firmware • System testing – testing of whole system on functionality and non-functionality basis • User acceptance testing – testing of the product against the criteria mentioned by the end-user/client • Test reports
- 14. DEPLOYMENT: • A process of launching fully functional model into the market SUPPORT: • Deals with the operation and maintenance of the product • Support should be provide to the end user/client to fix the bugs of the product UPGRADES: • Releasing of new version for the product which is already exists in the market • Releasing of major bug fixes.
- 15. RETIREMENT/DISPOSAL: • Everything changes, the technology you feel as the most advanced and best today may not be the same tomorrow • Due to this the product cannot sustain in the market for long • It has to be disposed on right time before it causes the loss.
- 16. MODELLING OF EDLC • Iterative/Incremental/Fountain EDLC Model • Prototyping/evolutionary model • Spiral model
- 17. ITERATIVE/INCREMENTAL/FOUNTAIN EDLC MODEL – Cascaded series of linear models – Do some analysis, follow some design, then some implementation in cycles – Repeat the cycles until the requirements are met.
- 19. Thank You