Posted by: SJC
Development, Software application development, Software maintenance, Software testing
My last post was certainly created in the heat of the moment, and displayed I’m sure a significant amount of the angst that I was feeling at the time. The issue that I was having has now been resolved, but it really serves as an excellent example of some of the pitfalls that can occur when developing an application. Let me explain.
I failed to follow one of the cardinal rules of development — that of changing too much at one time. As I understand it the procedure that I usually follow could be classified as “unit testing”. I was suckered in by the fact that the program was a very “simple” one. Because it was so simple, I didn’t take the time to make a change and then test for that change. As it turns out, that was a big mistake.
I also made the mistake — because I was feeling time constraints — of not taking the time to follow my usual step-by-step procedures. Not only was I not checking incremental changes, but I was also dealing with a situation where I was integrating third-party software into my program. What I had not realized was that by using some old code I was in fact negating some of the functionality I was expecting. Since this was the first time I had newly integrated this Active-X component using the latest version of my development tool — Visual Dataflex (VDF) — I was caught off guard.
Moral of the story? Make changes in increments, test frequently, and be patient.