What is the informal and formal software testing review?

Review

A review is a type of testing where a group of people discuss the product produced by the developer, detect errors, and try to correct them in a systematic manner.

Reviews play a key role in the software testing process.

Types of reviews

There are two types of reviews:

Informal reviews
Formal reviews

Informal reviews

Informal reviews take place between two or three people. The review conference is scheduled at their convenience.

This meeting is generally scheduled during the free time of the team members.
There is no planning for the meeting.
If any errors occur, they are not corrected in the informal reviews.
There is no guidance from the team.
This review is less effective compared to the formal review.

Formal reviews

Formal reviews take place among a team of three to five members. In the formal review, the members discuss the software model.

This meeting is scheduled beforehand. This gives the team members time to prepare.
This meeting consists of a professional team that identifies and corrects errors in the model.
This meeting does not exceed two hours.

Review meeting

At the end of the meeting, there is an acceptance stage. It involves the following three rules:

If the project meets the expectations, they accept the model.
If the project has a significant amount of errors, they reject the model, ask to modify it, and have another review meeting.
If the project has only a few errors, the team asks to correct the mistakes, and there are no further review meetings.