Smoke vs Sanity Testing
Smoke testing focus on stability of the build to start testing which ensures fully testing can be carried. Sanity testing focus on the basic functionality of the developed feature.
Validation vs Verification
Validation means to find if we are creating a software according to the requirement. Verification means to find if the product is working according to expected behavior.
Agile Methodology
It is a process followed to build software. It gives space to frequent required changes in software, unlike Waterfall model. It works for incremental projects which involves adaptations.
Epic and User Stories
User Stories are created to explain the changes or requirement of the projects. It gives specifications and details of the application and its design. Epic is higher level User Story where, multiple User Story can be derived from one Epic.

**Smoke vs Sanity Testing**

Smoke testing focus on stability of the build to start testing which ensures fully testing can be carried. Sanity testing focus on the basic functionality of the developed feature.

**Validation vs Verification**

Validation means to find if we are creating a software according to the requirement. Verification means to find if the product is working according to expected behavior.

**Agile Methodology**

It is a process followed to build software. It gives space to frequent required changes in software, unlike Waterfall model. It works for incremental projects which involves adaptations.

**Epic and User Stories**

User Stories are created to explain the changes or requirement of the projects. It gives specifications and details of the application and its design. Epic is higher level User Story where, multiple User Story can be derived from one Epic.