SYNCLOGICSL-MCU-001
How do you compare alternatives fairly?
Same-Unit Comparison requires options to be evaluated using the same boundaries, timeframes, definitions and cost or performance units.
AuthorWalter Shepherd
Published26 July 2026
Updated26 July 2026
Version2.1.0
StatusPublic Research and Pilot Release
MethodSL-MCU-001
Failure mode
What this method prevents
One option is compared using purchase price while another uses whole-of-life cost, creating a false advantage.
Illustrative example
Supplier quotations become comparable only after migration, training, support, exit and implementation costs are treated consistently.
How it works
A controlled sequence
- Define the comparison unit.
- Fix timeframe and boundary.
- Normalise included and excluded costs or outcomes.
- Record assumptions for every option.
- Compare uncertainty as well as point estimates.
- Reject comparisons that cannot be made on the same unit.
Reliance note
The method supports governance; it does not self-authorise a decision.
Application must be proportionate to the task, evidence and consequence level. The output should state what has been registered, what remains uncertain and which authorised human or organisation controls release.