TR167: Formalization of Construction Sequencing Rationale and Classification Mechanism to Support Rapid Generation of Sequencing Alternatives

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Abstract/Contents

Abstract: The ability to re-sequence activities is a critical task for project planners for effective project control. Re-sequencing activities requires planners to determine the impact or “role” an activity has on following activities. They also need to determine which activities may or may not be delayed. Distinguishing the role and “status” (i.e., whether an activity may be delayed) of activities in turn requires planners to understand the rationale for activity sequences. The current CPM framework, however, only distinguishes activities with respect to their time-criticality and represents sequencing rationale using precedence relationships. Planners thus find it difficult to keep track of individual sequencing logic, and manually inferring the role and status of activities becomes practically prohibitive in complex project schedules. The research introduced in this paper addresses the limitation of the CPM framework by formalizing a constraint ontology and classification mechanism. The ontology allows planners to describe their rationale for activity sequences in a consistent and intuitive way, while the classification mechanism leverages the ontology to automatically infer the role and status of activities. Using a prototype tool, users can instantly verify which activities to delay to expedite critical milestone or bottleneck activities, thus making it possible to quickly evaluate and generate sequencing alternatives in CPM-based schedules.

Type of resource	text
Date created	October 2006

Subject	CIFE
Subject	Center for Integrated Facility Engineering
Subject	Stanford University
Subject	Computer Aided Scheduling
Subject	Constraint Modeling
Subject	Construction Management
Subject	Critical Path Method
Subject	Planning
Subject	Process Models
Genre	Technical report

Location	https://purl.stanford.edu/mw447fv7116

Use and reproduction: User agrees that, where applicable, content will not be used to identify or to otherwise infringe the privacy or confidentiality rights of individuals. Content distributed via the Stanford Digital Repository may be subject to additional license and use restrictions applied by the depositor.

Preferred Citation: Koo, Bonsang and Fischer, Martin and Kunz, John. (2006). TR167: Formalization of Construction Sequencing Rationale and Classification Mechanism to Support Rapid Generation of Sequencing Alternatives. Stanford Digital Repository. Available at: http://purl.stanford.edu/mw447fv7116

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