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Träfflista för sökning "WFRF:(Koutsopoulos Georgios) "

Sökning: WFRF:(Koutsopoulos Georgios)

  • Resultat 1-10 av 26
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1.
  • Bider, Ilia, et al. (författare)
  • Introducing Goal Patterns for State-Oriented Business Process Modeling
  • 2018
  • Ingår i: 2018 IEEE 22nd International Enterprise Distributed Object Computing Conference Workshops. - : IEEE Computer Society. - 9781538641422 - 9781538641415 ; , s. 43-47
  • Konferensbidrag (refereegranskat)abstract
    • Patterns are a proven way to make analysis and/or design effective and efficient. The idea of using patterns in business process modeling is not new. However, it was applied only to workflow type of process modeling. In this paper, we explore an idea of using patterns for a different type of process modeling, namely, state-oriented business process modeling. The idea is introduced using an example of a pattern for decision-making.
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2.
  • Chasparis, Georgios, et al. (författare)
  • Fair Scheduling in Common-Pool Games by Aspiration Learning
  • 2012
  • Ingår i: 2012 10th International Symposium on Modeling and Optimization in Mobile, Ad Hoc and Wireless Networks (WiOpt). - 9781467322942 ; , s. 386-390
  • Konferensbidrag (refereegranskat)abstract
    • We propose a distributed learning algorithm for fair scheduling in common-pool games. Common-pool games are strategic-form games where multiple agents compete over utilizing a limited common resource. A characteristic example is the medium access control problem in wireless communications, where multiple users need to decide how to share a single communication channel so that there are no collisions (situations where two or more users use the medium at the same time slot). We introduce a (payoff-based) learning algorithm, namely aspiration learning, according to which agents learn how to play the game based only on their own prior experience, i.e., their previous actions and received rewards. Decisions are also subject to a small probability of mistakes (or mutations). We show that when all agents apply aspiration learning, then as time increases and the probability of mutations goes to zero, the expected percentage of time that agents utilize the common resource is equally divided among agents, i.e., fairness is established. When the step size of the aspiration learning recursion is also approaching zero, then the expected frequency of collisions approaches zero as time increases.
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3.
  • Henkel, Martin, et al. (författare)
  • A Case Study on the Use of Enterprise Models for Business Transformation
  • 2020
  • Ingår i: Trends and Innovations in Information Systems and Technologies. - Cham : Springer. - 9783030456870 - 9783030456887 ; , s. 404-414
  • Konferensbidrag (refereegranskat)abstract
    • Organizations constantly need to change due to their desire to improve, or due to the need to adapt to changes in the environment. The use of enterprise models could be a potential aid in this transformation process - by using models an organization can describe its business, analyze it, and design changes. For an organization, models may be important in order to determine if a transformation should be pursued, and determine the consequences of performing the transformation. In this paper, we report on a case study performed at an organization that uses enterprise models. Based on a set of business transformations that the organization is considering, we examine how the existing models they use can help in expressing the changes needed, and the shortcomings of existing models. We conclude with a set of tentative shortcomings of traditional models and pointers for future research addressing these.
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4.
  • Henkel, Martin, et al. (författare)
  • Using Enterprise Models for Change Analysis in Inter-organizational Business Processes
  • 2019
  • Ingår i: Business Process Management: Blockchain and Central and Eastern Europe Forum. - Cham : Springer. - 9783030304287 - 9783030304294 ; , s. 315-318
  • Konferensbidrag (refereegranskat)abstract
    • Organizations increasingly participate in and rely on inter-organizational processes to carry out work. However, inter-organizational processes may be complex, especially when there is a need to introduce and decide upon changes that affect the process. In this paper we examine the problems that may arise when changing inter-organizational processes. As the foundation for our examination, we use a case study performed at a healthcare region in Sweden. In the case, a number of potential changes to an inter-organizational process have been identified. Based on the analysis of the case, we identify the basic constituents that enterprise models need to contain in order to be useful tools for representing changes to inter-organizational processes.
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5.
  • Henkel, Martin, et al. (författare)
  • Using the Fractal Enterprise Model for Inter-organizational Business Processes
  • 2019
  • Ingår i: Joint Proceedings of the ER Forum and Poster & Demos Session 2019 co-located with 38th International Conference on Conceptual Modeling (ER 2019). ; , s. 56-69
  • Konferensbidrag (refereegranskat)abstract
    • Inter-organizational processes are important for delivering complex services and products. While these processes are important, they are also difficult to design and change. In this paper, we examine how a particular kind of model, the Fractal Enterprise Model (FEM), can help in describing and analyzing changes to inter-organizational processes. FEM is asset-based, meaning that it is focusing on how processes share and consume resources. We use a case study performed at a health care region in Sweden as the base of our examination. In the case, potential changes that affect the organization have been identified, and we use these changes to create FEMs. Based on the case, the need to extend FEM to improve its utility for modeling inter-organizational processes is identified
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6.
  • Koutsopoulos, Georgios, et al. (författare)
  • An analysis of capability meta‑models for expressing dynamic business transformation
  • 2021
  • Ingår i: Software and Systems Modeling. - : Springer Science and Business Media LLC. - 1619-1366 .- 1619-1374. ; 20, s. 147-174
  • Tidskriftsartikel (refereegranskat)abstract
    • Environmental dynamism is gaining ground as a driving force for enterprise transformation. To address the changes, the capabilities of digital enterprises need to adapt. Capability modeling can facilitate this process of transformation. However, a plethora of approaches for capability modeling exist. This study explores how concepts relevant to change have been implemented in the meta-models of these approaches, aiming to visualize relationships among change-related concepts, and identify ways to improve capability modeling toward a more efcient depiction of capability change. The concepts are visualized in concept maps, and a framework is developed to assist the classifcation of concepts relevant to change functions. Similarities and diferences among the existing models are discussed, leading to suggestions toward improvements of capability modeling for capability adaptation.
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7.
  • Koutsopoulos, Georgios, et al. (författare)
  • An Experience Report on the Implementation of the KYKLOS Modeling Method
  • 2021
  • Ingår i: The Practice of Enterprise Modeling. - Cham : Springer. - 9783030912789 - 9783030912796 ; , s. 103-118
  • Konferensbidrag (refereegranskat)abstract
    • Several types of enterprise models and methods have been developed that may help an organization to describe and improve its business. A common practice is also the development of tool support to complement an enterprise modeling method’s application. The development of tool support for a modeling method includes creating a representation of the modeling concepts, but also designing how the user should interact with the tool. This paper reports on the challenges and opportunities encountered during the process of implementing the KYKLOS modeling method in a modeling tool. The KYKLOS method, which is an enterprise modeling method, is specialized in supporting the design and analysis of changing capabilities. Using as input an initial meta-model of capability change, all the necessary tasks are performed to elicit a language model, which is required for the implementation of the method in a tool.
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8.
  • Koutsopoulos, Georgios, et al. (författare)
  • Application and evaluation of interlinked approaches for modeling changing capabilities
  • 2024
  • Ingår i: Software and Systems Modeling. - 1619-1366 .- 1619-1374.
  • Tidskriftsartikel (refereegranskat)abstract
    • The nature of modern organizations needs to be increasingly adaptive, since they are dealing with a constant demand to respond to stimuli derived from the dynamic environments they operate in. Changing their capabilities is a common response, and this makes capability management a vital aspect of organizational survivability. To date, there are no approaches specifically designed to address this specific situation. KYKLOS and Compass are two interlinked approaches of different complexity, a DSML and a canvas, developed to support capability change. As recently developed methods, they lacked formal demonstration and evaluation; therefore, the goal of this article is to present the demonstration and evaluation of the two approaches by their stakeholders, in particular, business and modeling experts. A case study in a Swedish company in the ERP system consulting domain that is undergoing changes in its sales and consulting capabilities related to evolving customer requirements has been used to demonstrate and evaluate the two approaches. The process consisted of two evaluation cycles. The first cycle concerned KYKLOS and used two categories of evaluators, the business experts and the modeling experts. While the modeling experts evaluated positively the method, the business experts had difficulties associated with its ease of use and adoption. This resulted in the development of Compass, which was evaluated by business experts during the second evaluation cycle. Compass was evaluated more positively in terms of the difficult aspects, but the challenge is ongoing and motivates further future research.
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9.
  • Koutsopoulos, Georgios, et al. (författare)
  • Applying and Evaluating the KYKLOS Method
  • 2022
  • Ingår i: The Practice of Enterprise Modeling. PoEM 2022. - Cham : Springer Berlin/Heidelberg. - 9783031214875 - 9783031214882 ; , s. 118-133
  • Konferensbidrag (refereegranskat)abstract
    • Organizations are dealing with a continuous need to adapt to their dynamic environments by changing their business capabilities. KYKLOS is a recently developed modeling method aiming to provide methodological and tool support for the phenomenon of capability change in organizations. This paper reports on a case study used to demonstrate and evaluate KYKLOS. The case study has been performed in a company in the ERP system consulting domain, and the results have been used to evaluate the method using two groups of evaluators, a business user group and a group of modeling experts. The paper reports the insights and findings that validate and motivate future research about the method and the different perspectives between the two groups of evaluators.
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10.
  • Koutsopoulos, Georgios, et al. (författare)
  • Business Process Canvas as a Process Model in a Nutshell
  • 2018
  • Ingår i: Enterprise, Business-Process and Information Systems Modeling. - Cham : Springer. - 9783319917030 - 9783319917047 ; , s. 49-63
  • Konferensbidrag (refereegranskat)abstract
    • The paper suggests using a business process canvas as a model of a process in a nutshell that presents the essential properties of the process and the context in which it is run, including the position of the process in the business process ecosystem. The canvas consists of three sections: positioning, operations and resources. A positioning section, called Outside, includes such components, as the purpose of the process existence, strategic goals (to be) achieved by having the process, related processes and mechanisms of initiation of new process instances. The operations sections, called Inside, gives an overview of the work of the process instance, and it includes such components as operational goal, milestones, main events and activities, outcomes and constraints. The resources section, called Resources, describes resources/assets used in the process instances, and includes such components, as participants, tools, methods, etc. The paper proposes a canvas layout, describes its components, and presents an example. In conclusion, the paper discusses areas where the canvas could be used in practice.
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