A Guide to Project Management

1 activity list 2 supporting detail 3 work breakdown

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Unformatted text preview: nd fully documented), since they may limit later scheduling options. Discretionary dependencies are usually defined based on knowledge of: "Best practices" within a particular application area. Some unusual aspect of the project where a specific sequence is desired, even though there are other acceptable sequences. Discretionary dependencies may also be called preferred logic, preferential logic, or soft logic. .5 External dependencies. External dependencies are those that involve a relationship between project activities and nonproject activities. For example, the testing activity in a software project may be dependent on delivery of hardware from an external source, or environmental hearings may need to be held before site preparation can begin on a construction project. .6 Milestones. Milestone events need to be part of the activity sequencing to assure that the requirements for meeting the milestone(s) are met. A Guide to the A Guide to the Project Project Management Management Body of Body of KnowledgeE L KnowledgeE PL 6.2.2 Tools and Techniques for Activity Sequencing .1 Precedence diagramming method (PDM). This is a method of constructing a project network diagram that uses boxes or rectangles (nodes) to represent the activities and connects them with arrows that show the dependencies (see also Section 6.2.3.1). Figure 6-2 shows a simple network logic diagram drawn using PDM. This technique is also called activity-on-node (AON) and is the method used by most project management software packages. PDM can be done manually or on a computer. It includes four types of dependencies or precedence relationships: Finish-to-start--the initiation of the work of the successor depends upon the completion of the work of the predecessor. Finish-to-finish--the completion of the work of the successor depends upon the completion of the work of the predecessor. Start-to-start--the initiation of the work of the successor depends upon the initiation of the work of the predecessor. Start-to-finish--the completion of the successor is dependent upon the initiation of the predecessor. In PDM, finish-to-start is the most commonly used type of logical relationship. Start-to-finish relationships are rarely used, and then typically only by professional scheduling engineers. Using start-to-start, finish-to-finish, or start-to-finish relationships with project management software can produce unexpected results, since these types of relationships have not been consistently implemented. MP AM SA S A Guide to the Project Management Body of Knowledge (PMBOK Guide) 2000 Edition 2000 Project Management Institute, Four Campus Boulevard, Newtown Square, PA 19073-3299 USA NAVIGATION LINKS ACROYMNS LIST ACRONYMS LIST 69 ACROYMNS LIST Chapter 6--Project Time Management Figure 63 | 6.3.1.4 B A Start D E C Finish F The dashed line represents a dummy activity. Figure 63. Network Logic Diagram Drawn Using the Arrow Diagramming Method ment ment geE L geE PL P .2 Arrow diagrammi...
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This document was uploaded on 09/27/2013.

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