A study on input domain partitioning

Partition testing is one of the widely used approaches in software testing. The efficacy of partition testing methods, such as the category-partition method and the classification-tree method, depends highly on the partitioning scheme, which groups together inputs that share some common characteristics. This paper reports case studies on the partitioning of the input domain from considerations of both the input and output perspectives, and discusses the relationships among the subdomains so formed.