Which activity must be completed before one or more activities can start?
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SAS/OR User's Guide: Project ManagementAn element of work performed during the course of a project. An activity normally has an expected duration, an expected cost, and expected resource requirements. Activities are often subdivided into tasks.The maximum amount of time that an activity can be delayed due to lack of resources.See arrow diagramming method.See precedence diagramming method.A priority value assigned to activities to provide an ordering for activities that are waiting for resources (during resource-constrained scheduling).Allowing activities to be split into segments during resource allocation. In some instances, preemption of activities may free a resource to be used by a more critical activity.Total costs incurred (direct and indirect) in accomplishing work during a given time period. See also earned value.The calendar date work actually ended on an activity. It must be prior to the timenow date.The calendar date work actually began on an activity. It must be prior to the timenow date.Using activity resource requirements to calculate total resource needs rather than to constrain the project schedule. Normally, resource requirements are used to perform resource-constrained scheduling.The alignment type is used to identify the type of constraint associated with a target date. The following types are available:
(2) In , less . Show
(2) The , for an activity or group of activities.
Finish-to-start is defined as the standard (or default) logical relationship. (2) In , BCWP less BCWS. The date when the activity is scheduled to be completed using the resource-constrained scheduling process.The date when the activity is scheduled to begin using the resource-constrained scheduling process. This date is equal to or greater than the early start date.Term used in PERT for float (see also total float).An activity that is contained within a supertask.Any activity that exists on a common path with the activity in question and occurs after the activity in question.An aggregate or summary activity that contains one or more activities (or subtasks) such that no subtask can begin until the supertask has begun and the supertask cannot end until all of the subtasks have ended.A date used to constrain the start or finish of an activity. The type of constraint is identified by an alignment type.See activity.The calendar date that separates actual (historical) data from future (scheduled) data.The amount of time that an activity can be delayed from its early start without delaying the project finish date. Total float is a mathematical calculation and can change as the project progresses and changes are made to the project plan. Also called "float," "slack," and "path float." See also free float.A deliverable-oriented grouping of project elements that organizes and defines the total scope of the project. Each descending level represents an increasingly detailed definition of a project component. Project components can be products or services. A deliverable at the lowest level of the work breakdown structure. A work package can be divided into activities.One or more pairs of on/off working times that define the valid working periods within a single day.ReferencesWhat is used to represent the start or completion of some activity?Explanation: Event: (i) An event represents a point in time signifying the completion of some activities and the beginning of new ones. This is usually represented by a circle in a network which is also called a node or connector.
What activities must be completed immediately before a particular activity?Activities that must be completed immediately before an activity are called predecessor activities.
Is the earliest time that an activity can start?Answer and Explanation: Answer: In a PERT network, the earliest (activity) start time is the C. earliest time that an activity can start without violation of precedence requirements.
What activity determines for a project to start?The Critical Path. The critical path describes the sequence of tasks that would enable the project to be completed in the shortest possible time. It is based on the idea that some tasks must be completed before others can begin.
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