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Course Library · Lesson 6 of 6
Digital · Guided lesson

Retest and explain what is ready

About 34 minutes · 6 reading + 28 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

Review the Room Picker simulation from initial contract through a verified rule repair.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Define scope and observable acceptance criteria.
  • Record eight diverse cases with expected and observed outcomes.
  • Write a minimal reproducible bug report with impact.
  • Show a one-change repair experiment and relevant comparisons.
  • Deliver retest evidence and a usability hypothesis with honest limits.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Coverage: cases represent relevant classes and boundaries.
  • Reproducibility: state, steps and results are sufficient to repeat.
  • Reasoning: the repair follows evidence and preserves valid behavior.
  • Handoff: claims stay within the observed version and scope.
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Before you begin

The idea in everyday life

A fixed label or comparison is not the end of testing. You need to verify the repair in the relevant version and check that nearby behavior still matches the contract. Your final packet will distinguish a simulated recommendation from authority to release a real product. It should help a decision-maker see what the evidence supports and what remains unknown.

The idea

Release advice combines tested behavior, impact and explicitly untested areas.

Try it

One step at a time.

Use the sample or information you have permission to use. Keep your work as you go. You can pause between steps.

  1. 1

    Rerun the eight planned input cases using v2’s corrected rule. Mark the formerly failing six-seat case passed only after tracing it to Review with the expected selected session and count.

  2. 2

    Recheck the review-before-confirm sequence separately. Input validation tests do not establish what happens after a user reaches the review screen, so preserve that distinction in the report.

  3. 3

    Update the bug report with v2 and the verification result. Keep the original failing evidence rather than erasing the history; it explains why the change was needed.

  4. 4

    Attach the usability hypothesis and label it pending real evaluation. Include no unsupported claims about device compatibility, security or accessibility testing that was not performed.

  5. 5

    Write a release recommendation for the simulator: the corrected range behavior meets the listed cases; broader product release requires the responsible owner’s additional checks. Assemble contract, plan, bug, repair and handoff.

Example

See how it works.

Fictional release note: "Room Picker v2 now accepts six seats and rejects seven under the documented 1–6 contract. All eight supplied input cases match their expectations. The paper flow still places Review before practice confirmation. The proposed Review selection label addresses a synthetic clarity concern but has not been evaluated with real users. Browser, assistive-technology and integration behavior were not exercised." This is a defensible summary of a completed classroom test effort. It supports accepting the simulated rule change while leaving a real release decision with the authorized product owner and its required verification process.

Check your work

Did you cover these?

  • Eight cases are rerun against v2.
  • Review sequence has its own evidence.
  • Untested areas and authority limits are explicit.
Your work

What to finish

A complete quality assurance packet with retest evidence and scoped release advice.

Common mistake

Watch for this

Equating a passing case list with exhaustive product correctness.

How can I tell I understand it?

A reviewer can see the defect, repair, verification and remaining scope.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1A fixed version was never tested; only the old version has results. What is missing?
2Validation passes, but Confirm behavior was never checked. What should the report say?
3Who should authorize release of a real workplace product?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
6
Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

Go to the knowledge check
Tools, templates, and lesson sources

Tools and templates

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Sources and further reading

Explore the references behind this lesson.

MIT 6.031 — Reading 3: Testing
Source & access notes · checked 2026-09-10

Read systematic testing and boundary discussion. Original reservation examples and questions do not reproduce the university exercises.

Access: Free public university reading; examples on the source page assume more programming experience. No enrollment, credit or certificate is needed for the adapted beginner concepts here.

Reuse: Linked for reference. Examples, activities and assessments here are original; free access alone does not grant permission to reuse source text or branding.

MDN — Introduction to Cross-Browser Testing
Source & access notes · checked 2026-09-10

Read testing scope, device differences and reporting sections; source is technical further reading, not a requirement to build a website.

Access: Free public reading; no account or certificate is required for this Life Starter course.

Reuse: Linked for reference. Examples, activities and assessments here are original; free access alone does not grant permission to reuse source text or branding.

W3C WAI — Involving Users in Evaluating Web Accessibility
Source & access notes · checked 2026-09-10

Read the distinction between standards evaluation and user evaluation; synthetic observations are explicitly labeled and no disability simulation substitutes for user involvement.

Access: Free public reading; no account or certificate is required for this Life Starter course.

Reuse: Linked for reference. Examples, activities and assessments here are original; free access alone does not grant permission to reuse source text or branding.

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