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Schedule mgmt
APM PMQ Competence 20 terminology
| Term | Definition |
|---|---|
| Buffer | (Critical Chain.) The centralised management of schedule contingencies |
| Cost breakdown structure (CBS) | The hierarchical breakdown of a project into cost elements. |
| Critical chain | A resource based approach to scheduling, useful when time is critical and derived from the critical path, that protects critical chains of activities with buffers. |
| Critical path | A sequence of activities through a precedence network from start to finish, the sum of whose durations determines the overall duration. |
| Estimate | A forecast of the probable time or cost of completing work. |
| Gantt chart | A graphical representation of activity against time. |
| Organisational breakdown structure (OBS) | A hierarchical way in which the organisation may be divided into management levels and groups, for planning and control purposes. |
| Product breakdown structure (PBS) | A hierarchical breakdown of the products required to be produced by a project. |
| RAM (Responsibility assignment matrix) | A diagram or chart showing responsibility assignments for elements of work. It is created by combining the WBS with the OBS. |
| Schedule | A timetable showing the forecast start and end dates for activities or events within a project, programme or portfolio. |
| Scheduling | The process used to determine the overall project duration. This includes identification of activities and their logical dependencies, and estimating activity durations, taking into account requirements and availability of resources. |
| Scope | The totality of the outputs, outcomes and benefits and the work required to produce them. |
| Scope management | The process whereby outputs, outcomes and benefits are identified, defined and controlled. |
| Work breakdown structure (WBS) | A hierarchical breakdown of the work required to deliver the products of a project. |
| Resource buffer | (Critical Chain.) A task-free period inserted before a task to be performed by a critical resource to ensure that it can start on time. |
| Feeder buffer | (Critical Chain.) A task-free period inserted between a non-critical path and its join to the critical path to ensure that critical path tasks are not delayed by the non-critical path. |
| Project buffer | (Critical Chain.) A task-free period inserted at the end of the critical path to allow for the optimistic scheduling of the critical path tasks. |