When you need it
Start when a feasibility study begins accumulating assumptions and source material. Update before option reviews and investment gates, particularly when older evidence or new findings may change a material conclusion.
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AI tools and documents for engineering and project management.
Feasibility Evidence and Assumption Register
Trace feasibility assumptions to evidence, decision sensitivity and a plan to resolve important gaps.
How to use this templateThis Excel template contains prepared working sheets and completion notes on a separate sheet. Enter your project data and review the completed workbook before use.
This editable workbook helps you organise project information. Check any included formulas, assumptions and results before use; it does not replace professional review.
The form prepares a separate brief; it does not fill the Word or Excel file.
Read product descriptions in your language. The Word and Excel template files are in English.
Only selected pages are shown. This is not the complete template. The full editable Word or Excel file is supplied with purchase.
Learning
How to use this template
What it helps you decide
The register reveals what the feasibility recommendation actually depends on. It directs verification effort toward assumptions capable of changing the decision and prevents repeated estimates from acquiring the appearance of established facts.
How to complete it
- Assign an Assumption ID and describe the Statement and boundary. Classify each item as fact, working assumption, estimate or unresolved question in Evidence class.
- Record Source / date and assess origin, age and access to underlying evidence. Link each entry to its Dependent decision and explain meaningful Sensitivity.
- Specify Validation action and Owner / review date before the next gate. Retain superseded entries with their replacement reference so changed conclusions remain explainable.
Who prepares and reviews it
The study coordinator maintains entries with technical, market and commercial assumption owners. A reviewer challenges reliability and decision sensitivity; the sponsor decides how unresolved gaps affect the next authorized gate.
A mistake to avoid
Citing the study itself as evidence for an assumption creates circular support and hides that the underlying capacity, cost or demand claim remains unverified.
Illustrative example
Illustrative example: a feasibility study assumes an existing substation can supply a new workshop. The register identifies the assumption's source and the cost estimate depending on it. Because a contrary provider response could change the concept, the study lead prioritizes capacity confirmation before recommending the option.
Document contents
- Document control and decision owner
- Evidence, scope and applicability
- Assumption classification
- Evidence reliability
- Decision dependence
- Resolution plan
- Open points, competent review and decision
Required inputs
- Project / asset identity, assessment date, scope and authorized decision owner
- Verified source documents with exact revision and record locators
- Feasibility study scope and option list
- Market, technical and commercial source records
- Assumption owners and review dates
- Decision criteria and sensitivity studies
Practical tools.
Professional judgment.
Confirm the adopted edition, local amendments, National Annex where relevant, and contract requirements.
Prepare project brief