Describe the qualified input, accepted result, systems crossed, people involved, current delays, evidence required, and consequence of error. Then decide which parts of the operating path belong inside the comparison. If one alternative includes implementation, source maintenance, monitoring, and support while another includes only a model interface, a feature table will misstate the work the buyer must still supply.
Set disqualifiers before weighted preferences. Identity isolation, required data location, contractual rights, approval behavior, export, recovery, or accessibility may be mandatory. Unverified conditions should remain unresolved rather than scored as absent. The comparison should use current first-party evidence and direct tests where authorized, with specialist review for material legal, security, privacy, financial, or contractual conclusions.