The set of actions and methods used by businesses to efficiently assign their resources to jobs, tasks, or projects they need to perform, as well as plan start and completion dates for each work or project depending on resource availability, is referred to as resource scheduling. People (either workers or independent contractors), equipment and machines (ordinary in construction, manufacturing, and maintenance industries), and rooms and facilities are all examples of resources, depending on the industry. They may also require consumable resources (for instance, materials and parts for manufacturing). Resource scheduling is, without a doubt, an essential aspect of project management. Project managers refer to resource-constrained scheduling when the key elements determining a project's deadline are resource availability and work capacity.