When we switch people from programming to testing and vice versa may reduce the quality of our software. I’ll get some quick objections out of the way: But, A person can be a great tester and programmer. - Yes I agree. But, Programmers do a lot of good testing. - Yes I agree. None of the above are in conflict with my conjecture. Programming or writing software automates things that would be expensive or hard to do otherwise. Our software might also be faster or less error prone at doing whatever it replaces. It may achieve or enable something that couldn't be done before the software was employed. Writing software involves overcoming and working around constraints to achieve improvement. That is, looking for ways to bypass limitations imposed by external factors or limitations in the tools we use. For example, coping with a high latency internet connection, legacy code or poor quality inputs. A programmer might say they were taking advantage of the technologies’
My thoughts on developing & testing.