What you need to know:-

Approaches - Describe different appropriate approaches to analysis and design, including Waterfall and Agile. 

Waterfall Approach - It is a sequential design process, in which various developers draft up all the requirements for a system up front.

Agile Approach - Incremental approach to development, in which developers start off with a simple project design instead of a huge document, and work on small modules at a time.

Both of these approaches are summarised below:-

Video References

Documentation  - Explain at which stage of the development which pieces of documentation would be produced 

• Look at the two User guides - what do they both contain?  What is the purpose of a user guide and what is included?

WJEC - Further Revision