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Research On The Methods Of Project Knowledge Representation And Recommendation Based On Knowledge Context

Posted on:2016-10-15Degree:DoctorType:Dissertation
Country:ChinaCandidate:J XuFull Text:PDF
GTID:1109330461474272Subject:Management Science and Engineering
Abstract/Summary:PDF Full Text Request
Project knowledge sharing and reuse is very important for project organizations since it can shorten the project time schedule, reduce project costs, and improve project quality and consumer satisfaction effectively. One of the key issues of project knowledge sharing and reuse is project knowledge recommendation which means how to recommend the right project knowledge to the right project members in the right context. Therefore, context is a very important factor need to be considered in project knowledge recommendation. For project knowledge, its context characteristics can determine which project members can be meet their demands by this knowledge; for project members, their needs of project knowledge are different when the contexts are different; for the project organizations, their context will affect the formation of project knowledge and also can affect the demand of project knowledge for project members. Project knowledge recommendation problem includes two basic components:one is the representation method of project knowledge; the other is the algorithm of how to recommend project knowledge. However, existing research are lack of consideration for the project knowledge context information. They have not provide a exhaustive content framework of project knowledge context, and also have not proposed a complete set of standard methods to carry out project knowledge sharing based on knowledge context.Aiming at the above problem, through the investigation and analysis of the composition of project knowledge context elements, this paper adopts literatures analysis, questionnaire survey and design science research methodology to explore a formal and feasible method of project knowledge representation by using various context elements, to explain the project knowledge recommendation mechanism based on knowledge context in different project knowledge activities, to design and build project context knowledge representation framework and project knowledge recommendation algorithm by using the proposed methods.The main tasks accomplished in this paper are as follows:(1) Analysis of the components of project knowledge context. This paper discusses the relationship between project knowledge and organizational context, the concept of project knowledge context is defined. Through extensive literatures review, this paper summarizes related components of organizational context. Based on this work and the content of project knowledge activities, the project knowledge context elements are selected and divided into basic context elements of project knowledge activities, project knowledge creation/acquisition context, project knowledge storage context, project knowledge sharing/transfer context and project knowledge application context. The content frameworks of project knowledge for different project knowledge activities are proposed.(2) Effects of context factors on willingness of project knowledge sharing. Willingness of project knowledge sharing will affect project members to participate in knowledge sharing activities from knowledge supplier side and knowledge receiver side. By combining Information System Success Model and Technology Acceptance Model, this paper builds the influence model of project information system on project members’ knowledge sharing willingness. Through a questionnaire survey, this paper focuses on the analysis of how does system quality, information quality, knowledge clearness and IT application influence Willingness to Donate Project Knowledge and Willingness to Collect Project Knowledge for project members. The study found that system quality impacts IT application level of project members through information quality which is the key to determine if the user will use project information system to share project knowledge.(3) The representation method of project knowledge context. This paper selects the ontology based knowledge representation method for project knowledge representation. Adopting the ontology description language OWL, this paper proposes a project knowledge context representation basic method based on ontology, which uses class, individual/instance, properties and constraints to describe project knowledge context. On this basis, this paper proposes the ontology framework of project knowledge context representation, including the ontology representation of basic components of project knowledge context and the ontology representation of project knowledge activities contexts.(4) Knowledge context-based recommendation method for project knowledge. Introducing the concept of project knowledge context time axis, this paper analyzes the process of project knowledge recommendation, and proposes the framework of project knowledge recommendation based on knowledge context. According to the basic process and methods of ontology matching, this paper proposes the methods of project knowledge context similarity calculation and matching for different context dimensions, and designs the instantiation and recommendation algorithms for project knowledge context under different scenarios. This paper also establishes a project knowledge recommendation prototype system, which relies on the knowledge context, to verify the feasibility of the proposed methods, frameworks, and algorithms.In summary, this paper illustrates the mechanism of project knowledge representation and recommendation based on project knowledge context, provides effective theory framework and implementation approach for accurate description and personalized delivery of project knowledge with context information. This research project provides theory and method to promote project knowledge sharing in organizations and enhance the organizations’ability of project management informatization and project knowledge management.
Keywords/Search Tags:Project Knowledge Management, Project Knowledge Representation, Project Knowledge Recommendation, Knowledge Context, Organizational Context
PDF Full Text Request
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