What an FDE Practical Assessment Should Measure (and What It Can't)
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A sound FDE practical measures problem framing, working delivery, security boundaries, testing/measurement and handover artifacts - with a published rubric. It cannot reliably measure culture fit, long-term judgment, or on-the-job stamina; know the difference.
The short answer
A well-designed FDE practical answers one question: can this engineer take an ambiguous brief to a running, safe, documented system? It measures that through observable artifacts - not through trick questions or timed puzzles. It also has hard limits worth respecting.
What it can measure
| Dimension | Observable evidence |
|---|---|
| Problem framing | Written assumptions, questions asked, scope boundaries |
| Delivery craft | Working code, error handling, tests, reproducibility |
| Security boundaries | ACL/authz handling, injection probes resisted, least privilege |
| Measurement | Metrics defined before build, honest results incl. failures |
| Handover | Runbook, architecture doc, "what's next" list |
Each dimension scored against a published rubric - if the program won't show its rubric, that's the assessment's first failure. Our methodology describes proposed assessment plans and states that external human review is not available.
What it can't measure
- Long-horizon judgment (how they steer a 6-month program).
- Interpersonal stamina across months of customer friction.
- Domain depth your specific industry needs.
- Integrity under pressure beyond what the attempt log shows.
Use practicals as strong evidence, combined with interviews and references - not as a hiring verdict. The hiring guide shows where the practical sits in a full loop.
Design principles for providers
- Blueprint first: domains, weights, pass rules published.
- Realistic fixtures, deterministic failures.
- Rubric scoring by at least one human reviewer for judgment dimensions.
- Anti-cheat by design (defensible artifacts, short defense call) rather than surveillance.
- Retake policy defined before anyone pays.
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