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Free handbook 10

Build a Portfolio, References & Evidence

Turn real contributions into credible, attributable proof that survives scrutiny.

Learners, freelancers and new foundersFirst living editionPrint-friendly

Chapter 1

Plan the claim

Start with what a reader needs to believe and what would prove it.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

List five capability claims and remove vague adjectives. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Claim index, audience and evidence test.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Chapter 2

Record your role

Separate what you owned, supported, observed and learned.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

Write an accurate contribution statement for every project. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Role, dates, supervisor, collaborators and boundaries.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Chapter 3

Choose safe samples

Protect client, personal, tender and commercially sensitive information.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

Obtain permission or create a redacted/simulated alternative. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Consent, redaction decision and source file.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Chapter 4

Show decisions and results

Explain the problem, options, action, result, limitation and improvement.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

Build one complete case record from source evidence. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Metrics, feedback, deliverable and reflection.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Chapter 5

Use references properly

Request factual, contactable confirmation and respect the referee's wording.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

Create a reusable evidence request form. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Identity, relationship, dates, role and verified observations.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Chapter 6

Maintain the portfolio

Review dates, links, permissions and relevance over time.

Why this matters

A strong result begins with an explicit decision and a proportionate evidence boundary. Record what is known, what is reported by another party, what is inferred and what remains untested. This prevents enthusiasm, seniority or polished presentation from being mistaken for operating proof.

Do the work

Schedule a quarterly evidence audit. Name the owner, affected people, dependencies, risk and review date. Where another organisation or person is involved, confirm their role, permission and expectations rather than assuming agreement.

Evidence to retain: Version log, expired claims, corrections and next evidence goal.

Review questions

  • What decision will this evidence support?
  • Whose experience, data or opinion is it?
  • What could make the conclusion inaccurate or unsafe?
  • What is the smallest useful next test?
  • Who can challenge or approve the result?

Practical checkpoint

Do not move on because a document exists. Sample a real record, observe the process where possible and ask whether a capable third party could reproduce the reasoning. Record a proceed, change, pause or stop decision and the evidence behind it.

Core source route: check current primary guidance at GOV.UK business, Procurement Act guidance, the ICO UK GDPR guidance and the official source linked for any sector-specific rule. This handbook is general learning, not advice for a particular organisation.

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