Blackbox Testing Techniques :
Blackbox testing techniques are useful to write Optimal cases for responsible modules functional testing in current sprint or s/w. Blackbox testing techniques are also called as closedbox testing techniques or functional testing techniques.They are
Boundary Value analysis : This technique is useful to write testcases related to size or range of input and output fields.
Equivalence classes Partitions (ECP) : This technique is useful to write Test Cases related type of Input and Output fields.
Decission Table (DT) : This Technique is useful to write test cases related to mapping in between inputs and outputs.
Orthogonal Arrays (OA): This techniqueis useful to remove repeated test cases.
State transition flow (STF) : This Technique is useful to write test cases in Order w.r.t functionality.
Error guessing: This Technique is useful to identify defects in upcomming sprints depends on past experience.