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l the activity name,
l an activity identifier, and
l a brief description of the activity.
l 2.1 Activity Definition
The activity attributes
provide more information about each activity, such as:
l predecessors,
l successors,
l logical relationships,
l leads and lags,
l resource requirements,
l constraints,
l imposed dates, and
l assumptions related to the activity
2.1 Activity Definition
A milestone
On a project is a significant event that normally has no duration.
l It often takes several activities and a lot of work to complete a milestone,
l the milestone is like a marker to help in identifying necessary activities.
l Milestones are also useful tools for setting schedule goals and monitoring progress.
Requested changes
If there are misunderstandings about activities, then requested changes may be required.
2.2 Activity Sequencing
Activity sequencing involves identifying and documenting the relationships between project activities.
Activity sequencing includes:
l Network Diagram,
l Gantt Diagram,
l Analysis depedencies.
Activity sequencing involves:
l reviewing the activity list and attributes,
l milestone list, and
l approved change requests
To determine the relationships between activities.
2.2 Activity Sequencing
Network Diagram
is the preferred technique for showing activity sequencing. Is also called PERT chart.
A network diagramming technique in which activities are represented by arrows and connected at points called nodes to illustrate the sequence of activities.
A node is simply the starting and ending point of an activity.
l The first node signifies the start of a project, and
l the last node represents the end of a project.
2.2 Activity Sequencing
The format of this network diagram uses the activity-on-arrow (AOA) approach or the arrow diagramming method (ADM).
2.2 Activity Sequencing
A different method is more commonly used: the precedence diagramming method or activity-on-node (AON).
The precedence diagramming method (PDM) is a network diagramming technique in which boxes represent activities.
2.2 Activity Sequencing
PDM visualizes the flow of work from conception to completion.
l Network diagrams provide detailed information on activities,
l Allow project managers to analyze tasks, resources, and the allotted time for each task.
PDM offers a number of advantages over the ADM.
l First, most project management software uses the precedence diagramming method.
l Second, the precedence diagramming method shows different dependencies among tasks, whereas ADM network diagrams use only finish-to-start dependencies.
2.2 Activity Sequencing
PDM requires the project manager to evaluate each work unit and determine which tasks are its successors and which tasks are its predecessors.
l Each task in a network diagram using PDM is represented by a rectangle called the activity node.
l Predecessors are linked to successors by arrows.
l One task can be both a successor and a predecessor.
l All activities in the network diagram have at least one predecessor and one successor activity, with the exception of the start and end activities.
l 2.2 Activity Sequencing
Gantt Chart:
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| Defining a Work Breakdown Structure | | | Is a network diagramming technique used to predict total project duration. |