Many software systems are required to process huge combinations of input data, all of which deserve to be tested. Since we rarely have time to create and execute test cases for all combinations, our fundamental problem in testing is how to choose a reasonably-sized subset that will find a large percentage of defects and can be performed within the limited time and budget available. Lee Copeland says that pairwise testing is the most effective—but not well-understood—test design technique to deal with this problem. The answer is not to attempt to test all combinations of all values for all...
Lee Copeland
TechWell Corp.
With more than forty years of experience as an information systems professional at commercial and nonprofit organizations, Lee Copeland has held technical and managerial positions in applications development, software testing, and software process improvement. At TechWell, Lee has developed and taught numerous training courses on software development and testing issues, and is a sought-after speaker at software conferences in the United States and abroad. He is the author of the popular reference book, A Practitioner’s Guide to Software Test Design.