Build a Portfolio Case Study around Decisions

A practical approach

Step 1

Open with the problem and intended user. Explain what you personally designed, implemented or evaluated.

Step 2

Show two or three consequential decisions with alternatives and trade-offs. Include a failure you investigated and the change it led to.

Step 3

Present evidence of the result: a working demo, relevant measurements or reproducible checks. State what remains incomplete.

Worked example

For a knowledge assistant, a strong case study can explain document parsing, retrieval evaluation and citation checks. A screenshot of a chat window alone does not show whether the assistant finds the right evidence or handles unknown questions.

A mistake to avoid

Inventing usage numbers or calling a prototype ‘production-ready’ without operational evidence weakens credibility. Use clearly labelled test results and describe their limits.

Try it yourself

Rewrite one project description into problem, role, decisions, evidence and limitations. Remove adjectives that are not backed by a concrete example.

Your implementation checklist

• Your contribution is explicit.
• Important trade-offs are explained.
• Results have inspectable evidence.
• Prototype and real-world outcomes are distinguished.