Executive summary

A structured pack for documenting and testing the demand, cost, benefit, alternative, and uncertainty assumptions behind a public service modernization business case.

What is inside

What the research pack covers

The asset takes the baseline evidence from the service diagnostic and walks the business case team through building an assumption register across five domains, logging every source with its date and owner, grading evidence strength, running a sensitivity pass to find the assumptions that matter most, and commissioning targeted research to close the riskiest gaps before options are appraised.

  • Scope: the candidate service modernization initiatives and the five assumption domains a public business case rests on
  • How demand, process, and access-barrier evidence is gathered and dated
  • Separating observations from hypotheses before any number enters the business case
  • Grading evidence strength and finding the assumptions that move the case most
  • Correcting for optimism in cost, benefit, and timescale estimates
  • Turning weak, high-impact assumptions into a short, costed research plan
  • The frozen assumption book handed to the options appraisal, with sign-off and review record