A

Accountability Matrix

See responsibility assignment matrix.

An 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.

Identifying the specific activities that must be performed in order to produce the various project deliverables.

(AD) A short phrase or label used in a project network diagram. The activity description normally describes the scope of work of the activity.

Estimating the number of work periods which will be needed to complete individual activities.

(AOA) See arrow diagramming method.

(AON) See precedence diagramming method.

(ACWP) Total costs incurred (direct and indirect) in accomplishing work during a given time period. See also earned value.

(AF) The point in time that work actually ended on an activity. (Note: in some application areas, the activity is considered ''finished'' when work is ''substantially complete.'')

(AS) The point in time that work actually started on an activity.

Generating, gathering, and disseminating information to formalize project completion.

A category of projects that have common elements not present in all projects. Application areas are usually defined in terms of either the product of the project (i.e., by similar technologies or industry sectors) or the type of customer (e.g., internal vs. external, government vs. commercial). Application areas often overlap.

The graphic presentation of an activity. See also arrow diagramming method.

(ADM) 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 activity). Activities are connected at points called nodes (usually drawn as small circles) to illustrate the sequence in which the activities are expected to be performed. See also precedence diagramming method.

Actual Start date.

See data date.

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