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In project management, resource leveling is defined by A Guide to the Project Management Body of Knowledge (PMBOK Guide) as "A technique in which start and finish dates are adjusted based on resource limitation with the goal of balancing demand for resources with the available supply."
A resource-leveled schedule may include delays due to resource bottlenecks (i.e., unavailability of a resource at the required time), and may cause a previously shorter path to become the longest or most "resource critical" path while a resource-smoothed schedule avoids impacting the critical path by using only free and total float. [14]
If resources are always available in unlimited quantities, then a project's critical chain is identical to its critical path method. Critical chain is an alternative to critical path analysis. Main features that distinguish critical chain from critical path are: Use of (often implicit) resource dependencies. Implicit means that they are not ...
[2]: 185 Thus, while resource leveling can be considered a constraint in order to adjust with certain resource supply limitation, for example, not to over-work some human resources, resource smoothing can be considered a useful method to solve the problem of a more flexible constraint if time of a deadline is a stronger constraint. [3] [4]
Schedule compression refers to a series of techniques used to shorten the duration of a project without compromising the result. Common schedule compression techniques include crashing, fast-tracking and resource reallocation.
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Such resources may include the financial resources, inventory, human skills, production resources, or information technology (IT) and natural resources. In the realm of project management , processes, techniques and philosophies as to the best approach for allocating resources have been developed.
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