Just like most problems, when you are trying to find the right approach to get accurate data, you might not know what tools might provide good solutions for your organization.  Part of your research may involve looking at options from a variety of perspectives.

Maybe you already own or would prefer to use certain technologies or systems.  Or, another approach is to look at things from an industry standpoint.  In any case, the best solutions are often found when you look at the problem from a variety of angles.