When effective value dates are in the past and sufficient market transactions already exist, can the value conclusion itself rise to the level of fact rather than opinion? This article discusses market characteristics, research standards, data collection requirements and data management issues.

Appraisers may not always be able to inspect computer assets, especially when preparing a retrospective appraisal. This article examines some of the issues involved in using a market-based mass-appraisal approach for computers whose value-making features can only be identified by function and technology.