Functional testing

[Arun V.]

How can we calculate complexcity of module while prepareing the test plan to calculate the number of test case we can write?

[Laureeta]

In a general sense, the term 'system testing' refers to the
testing of the system to ensure that it should perform as expected and
as required. Testing is performed module by module and also as a
whole. System Testing does not concern itself with the functionality of
the system and whether this is appropriate to meet the needs of the
users.

Whereas Functional Testing is to ensure that all the functionality in
the applications can perform correctly under all of the conditions that
the application could encounter when used in live processing.

[TGS Expert]

How can we calculate complexcity of module while prepareing the test plan to calculate the number of test case we can write?

1. List all functionality, screens , reports in the Module 2. Analyze

each of them from the following perspective :

a. Uses External Inputs

b. Generates external outputs

c. Uses an External query

e Data used is from

-- Internal logical file

-- External Interface file

f Number of server data tables used by screens/reports

g Number of client data Tables used by screens /reports

Assign weights to your responses to each of the above and total it to

determine complexity against a Score range set for Simple/medium &

complex .

Eg score : < 10 Simple / 10-20 Medium / > 20 Complex

From Past project handled prepare a metrics of average number of Test

cases for Simple / Medium / Complex functions and use this metrics to

estimate the number of Test cases.

Eg: Simple -- 10 test cases

Medium -- 25 test cases

Complex -- 40 test cases