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A General Product Evaluation Dimension System - Selection Logic

A reusable evaluation dimension framework: structure first, weights come from your needs.

Overview

This guide provides a structure for evaluation. It does not provide universal rankings because weights are conditional (A2).[^1]

Theory anchors: A2 Conditional Subjectivity · T1 Matching

1. The five reusable dimensions

  1. Performance (objective tests when possible)
  2. Quality & reliability
  3. User experience
  4. Value / total cost
  5. Support / service / warranty

2. Weighting principle (why “objective best–fails)

Different buyers will weight dimensions differently. Publishing weights explicitly is more honest than claiming universal objectivity.[^2]

3. Output: fit score

Compute a fit score only with:
- transparent evidence per dimension,
- explicit weights,
- and documented uncertainty — see Fit score.

References

  1. Keeney, R. L., & Raiffa, H. (1993). Decisions with Multiple Objectives: Preferences and Value Tradeoffs. Cambridge University Press.[source]
  2. Payne, J. W., Bettman, J. R., & Johnson, E. J. (1993). The Adaptive Decision Maker. Cambridge University Press.[source]

Further Reading