What are the differences between a test scenario and an error report?

A test scenario is a detailed description of a sequence of actions that need to be performed to verify a specific functionality or behavior of a system. It includes steps, expected results, and testing conditions.

A bug report is a document that records a problem found in the system. It describes what exactly is not working, how to reproduce the error, the expected and actual behavior, and additional information (logs, screenshots).

Main differences:

• Purpose: a test scenario is for verifying functionality, a bug report is for documenting a problem.
• Content: a scenario contains steps and expected results, a report describes the defect and its reproduction conditions.
• Usage: scenarios are used for planning and conducting tests, reports are for conveying information to developers.

Thus, a test scenario is an instruction for testing, and a bug report is the result of identifying a problem during testing.