SDLC Software Development Life Cycle - Iterative Model and Spiral Model
- 2. SDLC ✔ The Software Development Life Cycle is a systematic process for building software that ensures the quality and correctness of the software built. ✔ SDLC process aims to produce high- quality software which meets customer expectations. ✔ The software development should be complete in the pre-defined time frame and cost. Add a Footer 2
- 3. SDLC PHASES Add a Footer 3 Planning Analyses Design Coding Testing Deployment Maintenance
- 4. SDLC MODELS Add a Footer 4 ✔ Waterfall Model ✔ V-Shaped Model ✔ Iterative Model ✔ Spiral Model ✔ Big Bang Model ✔ Agile Model
- 5. SDLC Iterative Model ✔ It’s Also called in incremental model ✔Project is break into small modules which can be delivered. ✔Model very successfully when working with new technology. ✔More than one iteration can be going at the same time. Add a Footer 5
- 6. Add a Footer 6 ITERATIVE MODEL DESIGN
- 7. Advantages ✔ Less costly to change requirements as compared to other models. ✔ Easier to develop and test when iterations are small. ✔ Customer can give his feedback quickly. ✔ More than one iteration can be going parallel at same time. Disadvantages ✔ Comparatively more resources are required. ✔ Project started with complete project architecture design can result issues in future. ✔ Cost is higher than waterfall model. Add a Footer 7
- 8. SDLC Spiral Model Spiral Model is an incremental risk oriented life cycle model that has four main phases which is identified here. ✔Planning ✔Risk analysis ✔Design ✔Evaluation Add a Footer 8
- 9. SDLC Spiral Model Planning : ✔ This stage begins with collecting the feature requirements in the baseline spiral. ✔ This stage also involves learning the system requirements by constant communication between the client and the system analyst Add a Footer 9 Spiral Model
- 10. Add a Footer 10 SDLC Risk Analysis : ✔ In the risk analysis phase, a process is undertaken to identify risk and alternate solutions. ✔ A prototype is produced at the end of the risk analysis phase. Add a Footer 10 Spiral Model Spiral Modal
- 11. Add a Footer 11 SDLC Design: ✔ The Design phase starts with the conceptual design in the baseline spiral and involves architectural design, logical design of modules, physical product design and the final design in the subsequent spirals. Add a Footer 11 Spiral Model Spiral Modal
- 12. Add a Footer 12 SDLC Evaluation: ✔ This phase allows the customer to evaluate the output of the project to date before the project continues to the next spiral. Add a Footer 12 Spiral Model Spiral Modal
- 13. Advantages ✔ Project monitoring is easy ✔ Suitable for high risk project ✔ Reduce the number of risk ✔ Changes can accommodated in later stages. Disadvantages ✔ Not suitable for low risk project ✔ Cost of this approach is usually high ✔ Strict return and protocols are followed ✔ Success is highly dependent on the risk analysis. Add a Footer 13
- 14. THANK YOU Add a Footer 14