Test cases design techniques:

These are the following test case design techniques. 

A.) Boundary Value Analysis. (BVA)

B.) Error Guessing.

C.) Equivalence Class Partition. (ECP)  

D.) Cause-Effect Graph Analysis. (CEG)

Cyclometric complexity of a software:

It's a metric to measure the software (logic) complexity. 

Formula:--> E-N+2, where 'E' is no.of edges and 'N' is number of nodes.