Waterfall model observations
Unimportance of labels
- Different organizations have different labels for stages
- This is confusing but unimportant
Steps correspond to management phases and technical activities
- Maintenance is a phase, but isn't a single activity
- Some maintenance = redevelopment
- Testing is an activity but need not necessarily be a phase
All delivery is at the end
- System is delivered in one piece
- Only documents are available before that