Model Combinatorial Data Only After Completing Modelling of Targeted Functionality

The use of combinatorial data is part of a set of advanced test generation concepts which generally leads to longer test generation. Note that adding combinatorial data coverage also  rarely helps to improve coverage for models. To work most effectively and simplify model and test  analysis, model combinatorial data coverage should only be used in the final stages of model development.

As explained in detail in the separate document “Combinatorial Testing with Conformiq Creator”, (see References) multiple settings combinatorial data coverage settings multiply the effect of combinatorial data on test generation which not only increases test generation time and memory usage but also to very many tests that need to be validated. A common misunderstanding is that setting data coverage in multiple actions that data of these actions would be combined – the only way this can be modeled is using one combinatorial action. The “exploratory” settings for “Data Coverage” options should only be used by expert users.