  We show how to systematically analyze what may be inferred should a new
scalar particle be discovered in collider experiments. Our approach is
systematic in the sense that we perform the analysis in a manner which
minimizes apriori theoretical assumptions as to the nature of the scalar
particle. For instance, we do not immediately make the common assumption that a
new scalar particle is a Higgs boson, and so must interact with a strength
proportional to the mass of the particles with which it couples. We show how to
compare different observables, and so to develop a decision tree from which the
nature of the new particle may be discerned. We define several categories of
models, which summarize the kinds of distinctions which the first experiments
can make.
