The term Critical Path Method (CPM) refers to a specific technique of schedule Network Analysis that is used to determine the amount of flexibility that exists in regards to the scheduling of a particular and specific logical network path with the ne...
The period by which an activity, or group of activities, can be delayed, brought forward or extended without affecting any other tasks, or the Programme End Date. The amount of time that a noncritical activity can be delayed without affecting the com...
Total float is how many delays are allowed from the beginning of the project which will not interfere with the projected completion date. Anything can happen during the course of working on an extended task. Projects can be affected by adverse weathe...
活动是描述范围元素的程序，时间表或网络的元素。活动预计需要的时间长度称为[[活动持续时间]]。消耗时间和使用资源（例如人员，材料和设备）的项目范围元素。活动是程序中最小的工作单元，但取决于程序的层次结构或详细程度，可以分为更小或更详细的活动。也称为[[任务]]。所有活动都由唯一的[[活动ID]]定义。活动是一个或者一类角色团队的任务。
A technique that compares the budgeted project costs, actual project costs and value of the work achieved to determine, inter alia, the status of the project, the likely completion of the project and the out-turn cost of the project. Often also refer...
A network diagramming technique in which activities are represented by arrows. The tail of the arrow represents the start and the head represents the finish of the activity (the length of the arrow does not represent the expected duration of the acti...
A network diagramming technique in which activities are represented by boxes (or nodes). Activities are linked by precedence relationships to show the sequence in which the activities are to be performed. See also [[Arrow Diagram Method]].
A method of [[Delay Analysis]] that analyses the project in discrete 'windows' of time. The Status of the project and forecast Programme Completion Date is examined at the beginning of the time window and at the end of the time window. Any Variance (...
The process of evaluation alternative strategies by changing the Sequence, Durations and [[Constraints]] on activities.
A Hierarchy that results from breaking down or ordering the project so that the activities on any level are a subsection of the level of detail shown above. A hierarchical and logically oriented grouping of project elements (typically deliverable or ...
The difference between planned and actual performance of an activity or a sequence of activities. Usually relating to differences between [[Planned Progress]], [[Planned Start]] or [[Planned Finish]] and [[Actual Progress]], [[Actual Start]] or [[Act...
A cyclical tabular report generated to enable those [[Monitoring]] the works to enter their activity [[Progress]] status against a list of activities that are scheduled to be in progress during a particular time window.
The time at which all progress information entered for a project should be correct as of this date. The time at which all remaining work starts. This is the date when Progress is measured up to and generally coincides with the production of the [[Pro...
A method of [[Delay Analysis]] that analyses the effect of each [[Event]] incrementally and takes account of the status of the project or programme at the time the delaying event occurred, the changing nature of the [[Critical Path]] and the effects ...
A relationship between two activities where the [[Successor]] activity (the second activity) cannot start until the [[Predecessor]] activity (the first activity) has started.
A relationship between two activities where the [[Successor]] activity (the second activity) cannot finish until the [[Predecessor]] activity (the first activity) has started. This is essentially an illogical [[Dependency]] as it implies time running...
Difference between Planned Progress, Planned Start or Planned Finish and Actual Progress, Actual Start or Actual Finish when the project is in Delay. See also [[Variance]] or [[Delay]].
A parameter of [[Earned Value Analysis]]. The ratio of actual performance to planned performance. It is generated by taking the sum of the budgets of those activities (or milestones) completed by the data date (Budgeted Cost for Work Performed {BCWS...
A method of calculating the [[Critical Path]] in partially completed projects taking account of Out of Sequence Progress. Where activities have been progressed out of sequence, Predecessor Activities are reduced to their [[Remaining Duration]] and pr...
A regular report detailing the progress of the project, usually including a comparison of the actual progress achieved compared to that planned for the individual activities and for the project as a whole, a forecast of completion of key dates and th...