In order to maintain the consistency of the
traceability, this artifact must be re-assessed every time there is a change to the requirement or at the end of
each milestone.
In a small simple project, the
traceability matrix can be maintained in a spreadsheet. Automated tool support is helpful in a complicated
large-scale project.
There are project resource costs to establishing and maintaining traceability. It is important to establish just enough
traceability to support completeness checking and change impact analysis without overusing the technique by tracing
"everything to everything".
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