Dependencies is a term that is often used in the business world to refer to the relationship between two or more components of a project. It is a concept that is used by project managers to define the level of importance of the various components of a project and the order in which they must be completed in order for the project to be successful. Dependencies are usually represented in a project plan as a series of nodes, which can be thought of as a hierarchy of tasks and activities. The higher the level of importance, the earlier the task or activity must be completed in order for the project to move forward. Dependencies can also refer to the relationship between two or more resources such as technology, personnel, or materials. In this scenario, the resources must be identified and allocated in the correct order for the project to be successful.