Solution Domain

Solution Domain

While the ProblemDomain defines the environment where the solution will come to work, the solution domain defines the abstract environment where the solution is developed. The differences between those two domains are the cause for possible errors when the solution is planted into the problem domain.

To me, the problem domain and the solution domain are essentially the same domain, it is the same territory bordered by the same frame. Only inside the domain the position of the relevant entities differ. When they are all perfectly in place they form a solution, otherwise they relatively still constitute a problem. --Harr


"Problem domain" and "solution domain" are essentially the same? Looks problematic to me. "Problem: I have no money". "Solution: I'll rob a bank".

In respect to a given problem (or set of problems), the solution domain (or solution space) covers all aspects of the solution product, including:

Confusing the problem with the solution is one of the great dangers of IT projects, resulting in software that may be a very good solution to some problem, but not to the specific set of problems its users face. See the quotation from Gamma et al. under ProblemDomain.

For an excellent discussion of the importance of understanding and defining the problem before selecting an appropriate solution space, see Michael Jackson, Problem Frames (Addison-Wesley, 2001).

-- Don Mills


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