| Activities | Pieces of work within a project that consume time. The completion of all the activities of a project marks the end of the project.
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| Critical Path | The sequence of activities in a project that forms the longest chain in terms of their time to complete. This path contains zero slack time.
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| Early Start Schedule | A project schedule that lists all activities by their early start times.
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| Functional Project | A structure where team members are assigned from the functional units of the organization. The team members remain a part of their functional units and typically are not dedicated to the project.
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| Gantt Chart | Shows in a graphic manner the amount of time involved and the sequence in which activities can be performed. Often referred to as a bar chart.
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| Immediate Predecessor | Activity that needs to be completed immediately before another activity.
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| Late Start Schedule | A project schedule that lists all activities by their late start times. This schedule may create savings by postponing purchases of material and other costs associated with the project.
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| Matrix Project | A structure that blends the functional and pure project structures. Each project uses people from different functional areas. A dedicated project manager decides what tasks need to be performed and when, but the functional managers control which people to use.
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| Project | A series of related jobs usually directed toward some major output and requiring a significant period of time to perform.
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| Project Management | Planning, directing, and controlling resources (people, equipment, material) to meet the technical, cost, and time constraints of the project.
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| Project Milestone | A specific event in a project.
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| Pure Project | A structure for organizing a project where a self-contained team works full-time on the project.
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| Slack Time | The time that an activity can be delayed; the difference between the late and early start times of an activity.
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| Time-Cost Models | Extension of the critical path models that consider the trade-offs between the time required to complete an activity and cost.
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| Work Breakdown Structure | The hierarchy of project tasks, subtasks, and work packages
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