Formulating Closeness Centralities onWorkflow-Supported Performer-Activity
Affiliation Networks
Hyunah Kim*, Kwanghoon Pio Kim*
*Department of Computer Science, Kyonggi University, Suwon-si Gyeonggi-do, 16227, Republic of Korea
hyuna2486@naver.com, kwang@kgu.ac.kr(Pt9)Abstract— This paper focuses on a special type of enterprise social networks, which is called ‘workflow-supported activityperformer affiliation network,’ and particularly formulates a metric of closeness centrality to numerically analyze the degree ofclerical familiarities among performers who are involved in a workflow-supported activity-performer affiliation network. Aworkflow model specifies enactment sequences of the associated activities and their affiliated relationships with roles, performers,invoked-applications, and relevant data. These affiliated relationships can be revived into valuable organizational knowledge
supporting business intelligence as well as managerial decision-making activities. In this paper, we particularly focus on
formulating the affiliated relationships between activities and performers in a workflow model to numerically measure thecloseness centralities of performers as well as the closeness centralities of activities. We also devise a series of algorithms forimplementing the formulated closeness centrality equations, and describe the ultimate implications of these closeness centrality
formulations in workflow-supported organizations.
Keyword—workflow-supported affiliation network, ICN-based workflow model, organizational closeness centrality, businessprocess intelligence
Hyunah Kim Dr. Kim is an adjunctive professor and a faculty member of the collaboration technology research laboratory in thedepartment of computer science at Kyonggi University, South Korea. She received her B.S. degree in computer science from Korea
Nazarene University in 2001. Also, she received her M.S. and Ph.D. degrees in computer science from Kyonggi University in 2003
and 2009, respectively. She has been on the operational committees of several domestic and international conferences including
KSII, AP-IST, ICONI, andICACT. Her research interests include workflow systems, SCORM-based e-Learning process models, BPM, BPI, ACM,
workflow-supported social networks discovery and analysis, and process-aware Internet of Things.

Kwanghoon Pio Kim Dr. Kim is a full professor of computer science department and the founder and supervisor of thecollaboration technology research laboratory at Kyonggi University, South Korea. He received B.S. degree in computer science fromKy- onggi University in 1984. And he received M.S. de- gree in computer science from Chungang University in 1986. He also
received his M.S. and Ph.D. degrees from the computer science department at University of Colorado Boulder, in 1994 and 1998,respectively. He had worked as researcher and developer at Aztek
Engineering, American Educational Products Inc., and IBM in USA, as well as at Electronics and Telecommunications ResearchInstitute (ETRI) in South Korea. In present, he is a vice-chair of the BPM Korea Forum. He has been in charge of a country-chair(Korea) and ERC vice-chair of the Workflow Management Coalition. He has also been on the editorial board of the journal of KSII,
and the committee member of the several conferences and workshops. His research interests include groupware, workflow systems,BPM, adap- tive case management (ACM), CSCW, collaboration theory, Grid/P2P/Cloud distributed workflow systems, process
warehousing and mining, workflow- supported social networks discovery and analysis, process-aware information systems, dataintensive workflows, and process-aware Internet of Things.