30. Difference between Inspection and Walkthrough?

Walkthrough: It is a step-by-step presentation by the author of a document in order to gather information and to establish a common understanding of its content.

It is review of a software work product by colleagues of the producer of the product for the purpose of identifying defects and improvements.

Inspection: It is a type of peer review that relies on visual examination of documents to detect defects, e.g. violations of development standards and non-conformance to higher level documentation. The most formal review technique and therefore always based on a documented procedure. Its purpose is to the identifying defects and improvements.

But I always believe in remembering anything in my own language. And everyone should do in the same way. If you will try to remember these definitions, you may not understand properly also you may forget soon.

Walkthrough :-

1.) It's a type of Semi Formal Review.
2.) 2 to 7 People are involved.
3.) Author is Presenter.
4.) Lead by Author only.
5.) Reviewers are not aware of the subject/topic.
6.) Other people are Inspectors or Reviewers.

Inspection :-

1.) It's totally a Formal Review.
2.) 2 to 10 or more People are involved.
3.) Author is not presenter. Some one else is giving presentation.
4.) Lead by Moderator.
5.) Reviewers are aware & well prepared for the subject/topic.
6.) Other people are Inspectors or Reviewers.
7.) Minute Taker is writing MOM.
8.) Recorder is noting down everything. Like defects, changes, improvements etc.
9.) Moderator's responsibility is to make sure that meeting is successful.

Walkthrough: Author presents their developed artifacts to an audience of peers. Peers question and comment on the artifacts to identify as many defects as possible. It involves no prior preparation by the audience. Usually, it involves minimal documentation of either the process or any arising issues. Defect tracking in walkthroughs is inconsistent.

Inspection: is used to verify the compliance of the product with the specified standards and requirements. It is done by examining, comparing the product with the designs, code, artifacts and any other documentation available. It needs proper planning and overviews are done to ensure that inspections are held properly. Lots of preparations are needed, meetings are held to do the inspections and then on the basis of the feedback of the inspection, rework is done.