Software Engineering

18.1.1 
Products of preliminary architecture definition
The following products should be generated during the preliminary architecture 
definition stage of the software development project:
1. 
Functional behavior model.
 The functional behavioral model provides the func-
tional flow, control flow, data flow, timing, error detection and handling procedures, 
and resource utilization characteristics of the software solution. The behavior 
model is derived from the operational model and decomposes operational activities 
into the deliberate behaviors the software product will be fabricated to possess.

---