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  • 1.
    Elias, Mturi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Design of Business Process Model Repositories: Requirements, Semantic Annotation Model and Relationship Meta-model 2015Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Business process management is fast becoming one of the most important approaches for designing contemporary organizations and information systems. A critical component of business process management is business process modelling. It is widely accepted that modelling of business processes from scratch is a complex, time-consuming and error-prone task. However the efforts made to model these processes are seldom reused beyond their original purpose. Reuse of business process models has the potential to overcome the challenges of modelling business processes from scratch. Process model repositories, properly populated, are certainly a step toward supporting reuse of process models.

    This thesis starts with the observation that the existing process model repositories for supporting process model reuse suffer from several shortcomings that affect their usability in practice. Firstly, most of the existing repositories are proprietary, therefore they can only be enhanced or extended with new models by the owners of the repositories. Secondly, it is difficult to locate and retrieve relevant process models from a large collection. Thirdly, process models are not goal related, thereby making it difficult to gain an understanding of the business goals that are realized by a certain model. Finally, process model repositories lack a clear mechanism to identify and define the relationship between business processes and as a result it is difficult to identify related processes.

    Following a design science research paradigm, this thesis proposes an open and language-independent process model repository with an efficient retrieval system to support process model reuse. The proposed repository is grounded on four original and interrelated contributions: (1) a set of requirements that a process model repository should possess to increase the probability of process model reuse; (2) a context-based process semantic annotation model for semantically annotating process models to facilitate effective retrieval of process models; (3) a business process relationship meta-model for identifying and defining the relationship of process models in the repository; and (4) architecture of a process model repository for process model reuse.

    The models and architecture produced in this thesis were evaluated to test their utility, quality and efficacy. The semantic annotation model was evaluated through two empirical studies using controlled experiments. The conclusion drawn from the two studies is that the annotation model improves searching, navigation and understanding of process models. The process relationship meta-model was evaluated using an informed argument to determine the extent to which it meets the established requirements. The results of the analysis revealed that the meta-model meets the established requirements. Also the analysis of the architecture against the requirements indicates that the architecture meets the established requirements.

  • 2.
    Elias, Mturi
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Bider, Ilia
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Using Fractal Process-Asset Model to Design the Process Architecture of an Enterprise: experience Report2014Inngår i: Enterprise, Business-Process and Information Systems Modeling: 15th International Conference, BPMDS 2014, 19th International Conference, EMMSAD 2014, Held at CAiSE 2014, Thessaloniki, Greece, June 16-17, 2014 : proceedings / [ed] Ilia Bider, Berlin: Springer, 2014, s. 287-301Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The Fractal Process-Asset (FPA) model has been proposed as an approach for identifying business processes and defining relationships between them in an enterprise. This paper reports on a project of applying the model in a Higher Education Institution enterprise. The goal of this project is twofold. One is to design a process architecture that provides a holistic view on the major business processes and their interconnections in the department to be used for business planning and development. Second is to test whether the FPA model is suitable for creating a holistic view on the major business processes and their interconnections in an enterprise. The FPA model has been applied and evaluated by business domain experts in a frame of a real organization—department of Computer and System Sciences, Stockholm University. The results show that the FPA model is understandable and suitable for creating a holistic view on the major business processes in an enterprise and their interconnections. The educational processes architecture produced is understandable and can be used for business planning and development. Though the study has been conducted only in one organization, there is a likelihood that the results achieved are of general nature.

  • 3.
    Elias, Mturi
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A context-based process semantic annotation model for a process model repository2013Inngår i: Business Process Management Journal, ISSN 1463-7154, E-ISSN 1758-4116, Vol. 19, nr 3, s. 404-430Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Purpose – The purpose of this paper is to provide a model for semantically annotating business process models stored in a repository. The purpose of the model is to facilitate the searching of process models, to support navigating the process model repository and to enhance the understandability of process models.

    Design/methodology/approach – The annotation model has been developed by following a design science research approach. By analysing existing works the authors have identified the requirements for such an annotation model. Following these requirements the authors have designed a context-based process semantic annotation model. As a proof of concept, the annotation model has been implemented in a repository prototype and its applicability demonstrated. Finally, the annotation model has been evaluated in two controlled experimental studies.

    Findings – The proposed annotation model can be used to positively affect searching, navigation and understandability of process models.

    Practical implications – Application of the annotation model and clearly defined concepts in the process model repository is expected to improve the process of finding relevant process models in the repository for reuse.

    Originality/value – The contribution of the paper is both theoretical and practical. It provides a clear-cut context-based process semantic annotation model that can be implemented easily in any process model repository.

  • 4.
    Elias, Mturi
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap.
    A Survey of Process Model Reuse Repositories2012Inngår i: 6th International Conference, ICISTM 2012: Proceedings, Berlin/Heidelberg: Springer Berlin/Heidelberg, 2012, s. 64-76Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Business process modeling is a complex, time consuming and error prone task. However the efforts made to model business processes are seldom reused beyond their original purpose. Rather than modeling of business processes from scratch, analysts can drive process models, by redesigning the existing ones. A repository is, therefore, necessary to store and manage process models for future reuse. In this paper we, discuss requirements for a process model repository that would support reuse of process models, review existing process model repositories based on the requirement. Finally we analyse and point out major challenges of existing repositories that affect reuse. This survey will be a base to develop the future efficient searchable, user-friendly, useful and well-organized process model repositories.

  • 5.
    Elias, Mturi
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm, Sweden.
    Shahzad, Khurram
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm, Sweden.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm, Sweden.
    A business process metadata model for a process model repository2010Inngår i: Enterprise, Business-Process and Information Systems Modeling: Proceedings / [ed] Ilia Bider, Terry Halpin, John Krogstie, Selmin Nurcan, Erik Proper, Rainer Schmidt, Roland Ukor, Berlin: Springer Berlin/Heidelberg, 2010, s. 287-300Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Today reuse of business process models is becoming increasingly important. One of the proven solutions for reusing business process models is the use of repositories. Repositories should have process models and process metadata that can help users in searching, understanding, and interpreting process models. The purpose of this paper is to propose a Business Process Metadata Model (BPMM) that would facilitate a) locating process models, b) understanding and/or interpreting process models, and c) navigating a process model repository. In order to evaluate the BPMM, an empirical study is conducted to measure consistency and correctness of annotating business processes by using BPMM.

  • 6.
    Shahzad, Khurram
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH) / Stockholm University, Sweden.
    Elias, Mturi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH) / Stockholm University, Sweden.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH) / Stockholm University, Sweden.
    Requirements for a business process model repository: A stakeholders’ perspective.2010Inngår i: Business Information Systems: Proceedings / [ed] Witold Abramowicz, Robert Tolksdorf, Berlin: Springer Berlin/Heidelberg, 2010, s. 158-170Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Reuse of business process models is the act of designing business processes by using existing process models. Reuse of business process models has been considered as a way to reduce the cost of modeling business processes from scratch. In order to support reuse a critical mass of process models is required which justifies the effort of maintaining a process model repository. However, recent studies show that complete repositories which can support reuse are not yet available. One of the reasons is that stakeholder requirements for process model repositories have not been sufficiently investigated. Therefore, the purpose of this work is to define requirements of a process model repository from stakeholders’ (researchers and practitioners) perspective. In this study, we start by eliciting preliminary requirements (defined as propositions) through an exploratory study followed by an empirical validation of the propositions. Based on the analysis of the results we define as a set of requirements for a process model repository.

  • 7.
    Shahzad, Khurram
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm University, Sweden.
    Elias, Mturi
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm University, Sweden.
    Johannesson, Paul
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för data- och systemvetenskap. Royal Institute of Technology (KTH), Stockholm University, Sweden.
    Towards Cross Language Process Model Reuse: A Language Independent Representation of Process Models2009Inngår i: The Practice of Enterprise Modeling: Proceedings / [ed] Anne Persson, Janis Stirna, Berlin: Springer Berlin/Heidelberg, 2009, s. 176-190Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Process model reuse is becoming a key approach to addressing the challenges of modeling business processes from scratch. A repository is, therefore, essential to store and manage process models for future reuse. In this paper, we develop a logical data model that enables a Universal Process Repository to store process models in the form of process elements, independent of any process modelling language. In order to store process models in the process repository we propose an algorithm that automatically extracts data from the repository and converts them to process models on the fly. Finally, we use a case study to present data stored about a process model in the repository and to illustrate the development of process models from the data stored in the repository.

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