Waterfall and Large Systems

Large systems need a stable framework or architecture, with team responsibilities clearly defined with respect to that architecture — this must be planned in advance rather than developed incrementally

Explanation

The problems of incremental development become particularly acute for large, complex, long-lifetime systems, where different teams develop different parts of the system. Large systems need a stable framework or architecture and the responsibilities of different teams must be clearly defined with respect to that architecture. This has to be planned in advance rather than developed incrementally.