Method for Analysing Requirement Change Propagation Based on a Modified Pagerank Algorithm

DS 94: Proceedings of the Design Society: 22nd International Conference on Engineering Design (ICED19)

Year: 2019
Editor: Wartzack, Sandro; Schleich, Benjamin; Gon
Author: Grã‡ler, Iris; Thiele, Henrik; Oleff, Christian; Scholle, Philipp; Schulze, Veronika
Series: ICED
Institution: University of Paderborn
Section: Systems Engineering
DOI number:
ISSN: 2220-4342


Complexity of products and systems is increasing through digitalization, interdisciplinarity as well as high technology maturity and new business models. In consequence, new product development (NPD) projects need to manage and satisfy a large number of requirements from a broad range of stakeholders. Yet, NPD projects are often delayed due to requirement changes. In this paper, a new method for analyzing requirement change propagation is presented. The method is based on the assessment of requirement interrelations structured in a requirements structure matrix by a modified page-rank algorithm. By the method, a high number of strongly interrelated requirements can be analyzed in an efficient manner. Additionally, higher-level interrelations as well as the relative weights of requirements are also incorporated in the analysis. Hereby, an efficient holistic approach towards the analysis of requirement change propagation is proposed.

Keywords: Requirements, Algorithm, Clustering, Uncertainty, Complexity


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