-Can this be done? Some solutions are just too far-fetched.
-Is this solution appropriate to the problem (for example, installing automatic controls where a simple change to operating procedures would be just as good)?
-Does it solve the problem or fix the symptom? For example, a solution that identifies a recycle route for waste merely deals with the waste - it does not reduce or eliminate it.
-Who can implement this? Is external help needed or can it be done in-house?
-When can it be implemented? Some solutions may take longer than others to come to fruition