UNIT TESTING is a level of software testing where individual units/ components of a software are tested. The purpose is to validate that each unit of the software performs as designed. A unit is the smallest testable part of any software. It usually has one or a few inputs and usually a single output.

A workflow is a series of predefined states that reflect the work processes and procedures for creating web content in your organization. For example, your workflow states could correspond to the creation, review, and approval stages that items must go through before they are published on your website. Workflows enable you to have control over the content approval and publishing process, ensuring that only content that has been approved is published. Workflows consist of three elements – states, commands and actions.