Use case & User stories in Agile development

Use case meaning from user stories perspective in software development:

In the context of user stories in software development, a "use case" refers to a specific, detailed description of how a user interacts with a software feature or system to achieve a particular goal or task. 

Use cases are used to define the functional requirements and expected behavior of the software from the user's perspective.

A use case typically includes the following elements:

Actor: This identifies who the user or actor is, which could be a specific type of user or a system interacting with the software.

Trigger: This describes the event or action that initiates the use case.

Preconditions: These are the conditions that must be true before the use case can be executed.

Main Flow: This outlines the step-by-step sequence of interactions and actions the user takes to accomplish their goal.

Alternate Flows: These describe any alternative paths or variations in the use case, including error handling or different scenarios.

Postconditions: These specify the expected state or outcome of the system after the use case is completed.

In Agile and user story-driven development, use cases can be broken down into user stories, which are smaller, manageable units of work that can be prioritized and implemented in iterations. 

Each user story typically represents a specific use case or scenario from the user's perspective, helping the development team understand what needs to be built and tested.