These can be people, equipment, facilities, funding, or anything else capable of definition (usually other than labour) required for the completion of a project activity.
Storable resources remain available unless depleted by usage, and may be replenished by project tasks that produce them.
[2] Resource scheduling, availability, and optimisation are considered key to successful project management.
Allocation of limited resources is based on the priority given to each of the project activities.
Their priorities are calculated using the critical path method and heuristic analysis.