I am interested in specializing in the area of
Fixed System Development. This type of project involves user interactions and process simulations in which every aspect that is going to take place can be considered in the design itself, so there is no need to rewrite the solution until the circumstance is something essentially different than the thing it was at the time of the design.
I have recently completed a project in this area that is close to being ready for public testing and have another project which just has to be rewritten because the proprietary entry point would probably have to be different than the thing it is today.
Any advice or suggestions you would have on learning more of this subject and how-to freelance in this area would be greatly appreciated.