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CTFL 3.2.4: Compare and contrast the different review types

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Syllabus section 3.2.4

4 original PrepBench practice questions for learning objective 3.2.4 of the CTFL 4.0 syllabus. Try the examples below and check each answer against its syllabus reference.

Practice questions

Question 1

A review is led by the author of the work product, mainly to establish a common understanding and collect feedback. Which review type is this?

  1. Inspection
  2. Walkthrough
  3. Technical review
  4. Informal review
Show answer
  • InspectionAn inspection is the most formal type with trained roles and metrics, not an author-led discussion.
  • Correct answer: WalkthroughA walkthrough is led by the author to build common understanding and gather feedback.
  • Technical reviewA technical review uses technical experts and a facilitator, not primarily the author.
  • Informal reviewAn informal review follows no defined process; this scenario describes a led walkthrough.

A walkthrough is typically led by the author and can serve to establish common understanding, gather feedback, and find anomalies. Technical reviews use technical experts and a facilitator; inspections are the most formal type, following a defined process with trained roles and metrics.

Syllabus section 3.2.4

Question 2

Two developers swap their user stories and quickly check each other's drafts for problems, without any defined process or documentation. Which review type is this?

  1. Inspection
  2. Technical review
  3. Informal review
  4. Walkthrough
Show answer
  • InspectionAn inspection is the most formal type and follows the complete generic review process.
  • Technical reviewA technical review uses technically qualified reviewers and is led by a moderator.
  • Correct answer: Informal reviewNo defined process and no documented output makes this an informal review.
  • WalkthroughA walkthrough is led by the author of the work product under review.

An informal review follows no defined process and does not require a formal documented output; its main objective is detecting anomalies. An inspection is the most formal type and follows the complete generic review process, a technical review is performed by technically qualified reviewers and led by a moderator, and a walkthrough is led by the author of the work product.

Syllabus section 3.2.4

Question 3

A team must choose between a walkthrough and an inspection for a safety-critical specification. Which statement correctly contrasts the two?

  1. A walkthrough follows the complete generic review process, while an inspection follows no defined process
  2. Both are led by the author, but an inspection additionally requires a scribe to be present
  3. A walkthrough collects metrics to improve the SDLC, while an inspection aims mainly at consensus
  4. A walkthrough is led by the author, while an inspection is the most formal type and aims to find the maximum number of anomalies
Show answer
  • A walkthrough follows the complete generic review process, while an inspection follows no defined processThis swaps the two: the inspection follows the complete generic process.
  • Both are led by the author, but an inspection additionally requires a scribe to be presentIn inspections the author cannot act as review leader or scribe.
  • A walkthrough collects metrics to improve the SDLC, while an inspection aims mainly at consensusMetrics belong to inspections; gaining consensus is an objective of technical reviews.
  • Correct answer: A walkthrough is led by the author, while an inspection is the most formal type and aims to find the maximum number of anomaliesAuthor-led against the most formal type seeking the maximum anomalies.

A walkthrough is led by the author of the work product. An inspection is the most formal type of review, follows the complete generic review process, and has finding the maximum number of anomalies as its main objective; metrics are collected and used to improve the SDLC, and the author cannot act as review leader or scribe.

Syllabus section 3.2.4

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