Waterfall Lifecycle
Computer Science: OCR A Level, topic 2.3.2
The Waterfall Lifecycle
When working in software development organisations follow software development systems to ensure the project is a success. The waterfall lifecycle is one such system.
Waterfall lifecycle
- The waterfall lifecycle has a series of stages that each have to be completed before moving to the next one.
- Each stage is large and thorough and produces a large amount of documentation.
Stage 1: Requirements
- To define requirements, the project team will work with the client to set out the requirements for the whole project.
- These will be very difficult to change after this stage is completed.
Stage 2: Analysis
- Analysis is where the project team analyses:
- What solutions they have ready to implement.
- What they can use or adapt to help produce a solution.
Stage 3: Design
- The design stage is where the project team produce a solution design to meet all of the users requirements.
Stage 4: Implementation
- Implementation takes place once the design is completed and signed off by the user and the project team.
- This is when the developers write the code and build the designed solution.
Stage 5: Testing
- Testing happens after implementation.
- Testing involves checking that:
- The system itself works.
- The system meets the user requirements.
Stage 6: Deployment
- Installation or deployment is when the system is put into place within the client's organisation.
Stage 7: Maintenance
- The system then moves into maintenance where they fix any bugs to the system and ensure it works as intended.
Test yourself on Waterfall Lifecycle
Waterfall Lifecycle
In which step of the waterfall cycle are any bugs fixed?