Mandatory Dependency
A mandatory dependency in project management is a link between two tasks where the start or end of one task depends on the start or end of the other. This kind of dependence is also called a “hard” or “non-negotiable” dependency.
Most of the time, mandatory relationships are based on technical or logical needs, and they are often caused by things like laws, standards, or contracts.
Mandatory dependencies can be shown in a project plan using different types of dependencies, such as finish-to-start (FS), start-to-start (SS), finish-to-finish (FF), or start-to-finish (SF) factors. They can also be shown with arrow diagrams or network diagrams, which show how jobs fit together and how they depend on each other.
In project management, it’s important to keep track of required relationships because a delay in one job can affect the whole plan. It is important to find, write down, and talk about required variables early on in the planning part of a project to make sure that they are taken into account when the project schedule is made and risks are managed.
Usage
It is used in schedule management