A Layer Precedence Diagramming Method Based On Work Breakdown Structures: LPDM_WBS And It’s Example On A Project Management

Project management plays a significant role in project development. It is an importantfactor for successful project development. Today, lots of people and organizations give a greatattention to the project management. The WBS (Work Breakdown Structure) and PDM(Precedence Diagramming Method) are important project management methods that has beenwidely used in project managementTraditional PDM in an excessive number of activities, large-scale projects becomescomplicated and difficult to understand, cannot fully express all scope of WBS, the lack ofstrict corresponding relation with WBS. When applying WBS to other project processes, it islack of effective logic and conversion information.This paper recommends a kind of Layer Precedence Diagramming Method Based onWork Breakdown Structure (LPDM_WBS). Paper comprehensive discusses the relationshipbetween LPDM_WBS and WBS, including: the relationship between LPDM_WBS hierarchystructures and WBS (the relationship between divided subset of WBS elements and sub-PDMof LPDM_WBS, and the relationship between parent-children relation of WBS elements andparent-children relation of LPDM_WBS sub-PDM), the relationship between the elements ofWBS and activities of LPDM_WBS); Given LPDM_WBS hierarchy structure, and somesignificant properties of LPDM_WBS, including: the consistency of time parameters, theimpendence of logic sequence between sub-PDMs, not exist connect the unambiguity of theconnection on expanding PDM. This paper gives a computing Critical Path processes aboutLPDM_WBS (Layer PDM) and its recursion implementation. According to the properties of LPDM_WBS and the particularity of IT projects, made a number of supplements and modify.We mainly discuss the scope of the task, results-oriented and activity-oriented, and completethe integrity, independence and uniqueness based on original principles. Finally, the ERPproject, for example, we present its WBS and the corresponding LPDM_WBS.