Software Engineering

4.3.3 
Specification tree
The specification tree is a schematic diagram that identifies the requirement speci-
fications and their relationships for the software product and post-development 
processes under development. Each element of a product or process breakdown 
structure should have a specification that stipulates the performance or essential 
characteristics that a stakeholder requires and that must be delivered. Specifications 
are written usually in a manner that enables the developer and stakeholders to 
measure the suitability of the software product’s intended operational or business 
purpose. Specifications represent an output, product, or result of a work package 
identified by the WBS. The specification tree supports cost estimation, budgeting, 
and configuration control activities within a development project.