5 UAT AS TRANSITION
In this central chapter of the book we stand back from the detail of preparation and, before we immerse ourselves in the detail of our step-by-step approach, take a look at the bigger picture. Where does UAT fit in the larger scheme of things? What are its core functions and attributes? What overall contribution does it make?
Topics covered in this chapter
• The IS life cycle as a series of transitions
• Planning for transitions
• UAT as a transitional phase
• UAT as an event and UAT as a process
THE IS LIFE CYCLE AS A SERIES OF TRANSITIONS
In the introduction we presented the idea of the IS life cycle and here we reproduce the life-cycle model we included there as Figure 5.1.
The model reminds us that UAT is not ...