Information Technology Reference
In-Depth Information
Environment factors also play a vital role in productivity apart from personal fac-
tors of the members of the test team. Test tools allow the test team to either do test-
ing quickly or manage the testing activity better. Development testing specifies what
kind of information is available for testing done at the previous level. Test basis is the
factor that specifies the documentation level for the project. Development environ-
ment factor specifies the development environment used for developing the applica-
tion. So an application developed using a modern language like Java will take less
time in developing the application than using a procedural language like Pascal or
COBOL. Test environment factor specifies the test bed preparation factor. Testware
factor is the availability of existing test cases, automation scripts, and so on.
The environmental factor (E) is calculated by adding together the ratings for the
various environmental variables (test tools, development testing, test basis, develop-
ment environment, test environment, and testware) and then dividing the sum by
21 (the sum of the nominal ratings). Normally, one environmental factor is worked
out for the system as a whole, but separate factors can be calculated for the indi-
vidual subsystems if appropriate.
4.2.2.5 Primary Test Hours
Once we have the total number of tests for the entire application, we can find out
testing hours required. While total number of test points will provide the volume
of test work to be done, the productivity factor will determine at what speed this
volume of work can be done. Multiplying these two will give the number of test
hours to be spent to test the application.
The number of primary test hours is obtained by multiplying the number of test
points by the productivity factor:
TH = TTP * PR
where
TH = the total number of primary test hours
T T P = the total number of test points for the system
PR = the productivity factor
4.2.2.6 Total Number of Test Hours
Primary test hours information provides how many test hours are needed for test-
ing the application. Now we need to add management hours spent on the project
for planning, monitoring, reporting, and controlling the project to get total hours
to be spent on the project. Generally management hours are given as 10% of pri-
mary test hours. If there are more layers of management for the project, manage-
ment hours will be more.
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