Test Effort
The test effort shows the expenses for (still to come) tests.
There is a relation with test costs and failure costs (direct,
indirect, costs for fault correction). Some factors which influence
test effort are: maturity of the http://en.wikipedia.org/wiki/Software_Development_Process - software development process , http://en.wikipedia.org/wiki/Quality - quality and testability of the testobject, test infrastructure, http://en.wikipedia.org/wiki/Skills - skills of staff members, quality goals and test strategy.
Methods for estimation of the test effort
To analyse all factors is difficult, because most of the factors
influence each other. Following approaches can be used for the
estimation: top-down estimation and bottom-up estimation. The top-down
techniques are formula based and they are relative to the expenses for
development: http://en.wikipedia.org/wiki/Function_point_analysis - Function Point Analysis (FPA) and http://en.wikipedia.org/w/index.php?title=Test_Point_Analysis&action=edit - Test Point Analysis
(TPA) amongst others. Bottom-up techiques are based on detailed
information and involve often experts. The following techniques belong
here: http://en.wikipedia.org/wiki/Work_Breakdown_Structure - Work Breakdown Structure (WBS) and Wide Band http://en.wikipedia.org/wiki/Delphi_technique - Delphi (WBD).
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