However, the cleanup, delivery, and standards management features more than outweigh this small detraction. I've worked with both CodeTools and NuMega DevPartner error instrumentation, and, when it comes down to the nitty-gritty, they're not much different. NuMega has more features of course, but fundamentally both products fill the same need. I find CodeTools much more approachable and easier to implement. It's a good question.
Customers seem to prefer fixed bid.
Of course developers and consultants prefer the insurance and safety provided by the time and materials approach, which doesn't help a customer who is trying to budget for the coming year. It all boils down to how productive you can be in a given period. If you estimate that it takes a specific amount of time to complete a project, the customer will certainly appreciate having that information to work with and to budget. Total Visual SourceBook can give you an edge when it comes to that specific time frame. It allows you to be more productive in the same amount of time, therefore more profitable.