Written by our assessment team: what the criteria mean in practice, the evidence that works, and where learners get caught out.
What this unit is really about
Unit 308 is the analytical unit at Level 3, and the word that runs through it is structured. Criteria 1.3, 2.1 and 2.2 all specify structured methods, which means a named technique applied visibly — not "I thought about it and decided".
The spec sets minimum scope: LO2 needs at least one defined problem and LO3 at least one solution taken through presentation, justification and review. One problem is enough, so choose it well: it needs a root cause that is not obvious, data you can actually get, more than one plausible option, and a decision that is yours to make.
The evidence that works
| Learning outcome | Evidence that works well |
|---|
| LO1 — approaches | Proactive versus reactive approaches, named techniques, how root causes are identified and verified, and the information sources available to you |
| LO2 — root cause and options | The analysis itself: a five whys chain or fishbone diagram, the data you gathered, an options appraisal with advantages and limitations, and the decision |
| LO3 — present, justify, review | The paper, slides or briefing you presented, your justification, and a later review of what actually happened |
Techniques worth naming and using: five whys for a linear causal chain, fishbone (Ishikawa) when causes cluster into categories, Pareto analysis when a few causes drive most of the volume, a decision matrix for weighted options, and cost-benefit where the money matters. Use one properly rather than mentioning five.
The two criteria that separate a pass from a strong portfolio
1.3 asks you to examine how a root cause can be identified and verified. Verification is the step learners skip. You believed the cause was the handover; how did you check? Data before and after, a controlled trial on one shift, asking the people involved independently — that is verification, and it is what stops root-cause analysis being a guess with a diagram.
3.3 asks you to review the outcomes of the decisions made. That requires the decision to have been implemented long enough to see a result, so put this unit early in your programme. It also requires honesty: a solution that only partly worked, with your account of why, evidences the criterion better than a claim of complete success.
Criterion 2.4 says evidence-based decisions. Make the evidence visible — the numbers you used, where they came from, and their limitations. "The complaint log showed 14 of 19 complaints related to the collection window, although the log only captures complaints that reach the office" is exactly the register this unit wants.
Useful reading
