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Weighted Cumulative Belief Degree Approach for Project Portfolio Selection

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Abstract

Selecting a portfolio of projects is essential for organizations to sustain and develop their businesses and increase profitability. While creating a suitable portfolio, the opinions of the employees in the organization’s hierarchy about alternative projects can improve the decision process. In this paper, we structure the information technology/business development (IT/BD) project portfolio selection problem as a hierarchical group decision-making setting. Our aim is to process information provided from a large number of employees participating in the decision-making process and prevent the dominance of a single decision maker or biases due to irrelevant evaluations. A weighted cumulative belief degree approach is proposed for aggregating the evaluations of the decision makers and experts on the projects and on the importance weights of the criteria. We conduct a real-life case study in an organization in the automotive sector. The application shows that the proposed approach can enable getting evaluations from a large organization with less time and provides diverse results based on the several satisfaction levels.

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Authors and Affiliations

  1. Industrial Engineering Department, Istanbul Technical University, Faculty of Management, Maçka, Istanbul, 34356, Turkey

    Özge Şahin Zorluoğlu & Özgür Kabak

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  1. Özge Şahin Zorluoğlu
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  2. Özgür Kabak
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Correspondence to Özgür Kabak.

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Appendix

Appendix

See Tables 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 and 36.

Table 15 Belief structure of \({\text{DM}}_{11}^{1}\)
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Table 16 Belief structure of \({\text{DM}}_{11}^{2}\)
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Table 17 Belief structure of \({\text{DM}}_{12}^{1}\)
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Table 18 Belief structure of \({\text{DM}}_{12}^{2}\)
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Table 19 Belief structure of \({\text{DM}}_{1}^{1}\)
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Table 20 Belief structure of \({\text{DM}}_{1}^{2}\)
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Table 21 Belief structure of \({\text{DM}}_{2}^{1}\)
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Table 22 Belief structure of \({\text{DM}}_{2}^{2}\)
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Table 23 Belief structure of \({\text{DM}}_{2}^{3}\)
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Table 24 Belief structure of \({\text{DM}}_{311}^{2}\)
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Table 25 Belief structure of \({\text{DM}}_{312}^{1}\)
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Table 26 Belief structure of \({\text{DM}}_{312}^{2}\)
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Table 27 Belief structure of \({\text{DM}}_{31}^{1}\)
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Table 28 Belief structure of \({\text{DM}}_{31}^{2}\)
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Table 29 Belief structure of \({\text{DM}}_{32}^{1}\)
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Table 30 Belief structure of \({\text{DM}}_{32}^{2}\)
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Table 31 Belief structure of \({\text{DM}}_{3}^{1}\)
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Table 32 Belief structure of \({\text{DM}}_{3}^{2}\)
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Table 33 Belief structure of \({\text{DM}}_{3}^{3}\)
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Table 34 Belief structure of \({\text{DM}}_{0}^{1}\)
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Table 35 Belief structure of \({\text{DM}}_{0}^{2}\)
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Table 36 Belief structure of E2
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Şahin Zorluoğlu, Ö., Kabak, Ö. Weighted Cumulative Belief Degree Approach for Project Portfolio Selection. Group Decis Negot 29, 679–722 (2020). https://doi.org/10.1007/s10726-020-09673-3

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  • DOI: https://doi.org/10.1007/s10726-020-09673-3

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