| 1. |
- Bergholtz, Maria, et al.
(författare)
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A pattern and dependency based approach to the design of process models
- 2004
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Ingår i: CONCEPTUAL MODELING. - BERLIN : SPRINGER. - 3540237232 ; , s. 724-739
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Konferensbidrag (refereegranskat)abstract
- In this paper an approach for building process models for e-commerce is proposed. It is based on the assumption that the process modeling task can be methodologically supported by a designers assistant. Such a foundation provides justifications, expressible in business terms, for design decisions made in process modeling, thereby facilitating communication between systems designers and business users. Two techniques are utilized in the designers assistant, namely process patterns and action dependencies. A process pattern is a generic template for a set of interrelated activities between two agents, while an action dependency expresses a sequential relationship between two activities.
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| 2. |
- Bergholtz, Maria, et al.
(författare)
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Modelling institutional, communicative and physical domains in agent oriented information systems
- 2004
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Ingår i: Lect Notes Artif Intell. - Berlin, Heidelberg : Springer Berlin Heidelberg. ; , s. 189-205
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Konferensbidrag (refereegranskat)abstract
- One role of a business system is to provide a representation of a Universe of Discourse, which reflects its structure and behaviour. An equally important function of the system is to support communication within an organisation, by structuring and co-ordinating the actions performed by the organisation's agents. These two roles of a business system may be represented in terms of business and process models, i.e. separating the declarative aspects from the procedural control flow aspects of the system. Although this separation of concerns has many advantages, the differences in representation techniques and focus of the two model types constitute a problem in itself. Abstracting business semantics out of, for instance, technical messaging protocols poses severe problems for business analysts. The main contribution of this paper is a unified framework based on agent oriented concepts for facilitating analysis and integration of business models and process models in a systematic way. The approach suggested bridges the gap between the declarative and social/ economic aspects of a business model and the procedural and communicative aspects of a process model in a technology independent manner. We illustrate how our approach can simplify business and process models integration, process specification, process pattern interpretation and process choreography.
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| 3. |
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| 4. |
- Jalali, Amin, et al.
(författare)
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Aspect Oriented Business Process Modelling with Precedence
- 2012
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Ingår i: Business Process Model and Notation. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642331541 - 9783642331558 ; , s. 23-37
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Konferensbidrag (refereegranskat)abstract
- Complexity is a major concern which is aimed to be overcome by people through modelling. One way of reducing complexity is separation of concerns, e.g. separation of business process from applications. One sort of concerns are cross-cutting concerns i.e. concerns which are scattered and tangled through one or several models. In business process management, examples of such concerns are security and privacy policies. To deal with these cross-cutting concerns, the aspect orientated approach was introduced in the software development area and recently also in the business process management area. The work presented in this paper elaborates on aspect oriented process modelling. It extends earlier work by defining a mechanism for capturing multiple concerns and specifying a precedence order according to which they should be handled in a process. A formal syntax of the notation is presented precisely capturing the extended concepts and mechanisms. Finally, the relevance of the approach is demonstrated through a case study.
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| 5. |
- Jalali, Amin, et al.
(författare)
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Dynamic Weaving in Aspect Oriented Business Process Management
- 2013
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Ingår i: On the Move to Meaningful Internet Systems. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642410291 - 9783642410307 ; , s. 2-20
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Konferensbidrag (refereegranskat)abstract
- Reducing complexity in Information Systems is an important topic in both research and industry. One strategy to deal with complexity is separation of concerns, which results in less complex, easily maintainable and more reusable systems. Separation of concerns can be addressed through the Aspect Oriented paradigm. Although this paradigm has been well researched in programming, it is still at the preliminary stage in the area of Business Process Management. While some efforts have been made to extend business process modelling with aspect oriented capability, it has not yet been investigated how aspect oriented business process models should be executed at runtime. In this paper, we propose a generic solution to support execution of aspect oriented business process models based on the principle behind dynamic weaving of aspects. This solution is formally specified using Coloured Petri Nets. The resulting formal specification serves as the blueprint to the implementation of a service module in the framework of a state-of-the-art Business Process Management System. Using this developed artefact, a case study is performed in which two simplified processes from real business in the domain of banking are modelled and executed in an aspect oriented manner. Through this case study, we also demonstrate that adoption of aspect oriented modularization increases the reusability while reducing the complexity of business process models in practice.
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| 6. |
- Jalali, Amin, et al.
(författare)
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Operational Semantics of Aspects in Business Process Management
- 2012
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Ingår i: International Conference on Cooperative Information Systems. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 9783642336171 ; , s. -653
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Konferensbidrag (refereegranskat)abstract
- Aspect orientation is an important approach to address complexity of cross-cutting concerns in Information Systems. This approach encapsulates these concerns separately and compose them to the main module when needed. Although there are different works which shows how this separation should be performed in process models, the composition of them is an open area. In this paper, we demonstrate the semantics of a service which enables this composition. The result can also be used as a blueprint to implement the service to support aspect orientation in Business Process Management area.
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| 7. |
- Jalali, Amin, et al.
(författare)
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Supporting Aspect Orientation in Business Process Management : From Process Modeling to Process Enactment
- 2017
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Ingår i: Software and Systems Modeling. - : Springer Science and Business Media LLC. - 1619-1366 .- 1619-1374. ; 16:3, s. 903-925
-
Tidskriftsartikel (refereegranskat)abstract
- Coping with complexity is an important issue in both research and industry. One strategy to deal with complexity is separation of concerns, which can be addressed using Aspect-Oriented paradigm. Despite being well researched in Programming, this paradigm is still in a preliminary stage in the area of Business Process Management (BPM). While some efforts have been made to introduce aspect orientation in business process modelling, there is no holistic approach with a formal underlying foundation to support aspect-oriented business process design and enactment, and this gap restricts Aspect-Oriented paradigm from being practically deployed in the area of BPM. Therefore, this paper proposes a sound systematic approach which builds on a formal syntax for modelling aspect-oriented business processes and a Petri-net-based operational semantics for enacting these processes. The approach enables the implementation of software system artefacts as a proof of concept to support design and enactment of aspect-oriented business processes in practice. The approach is demonstrated using a banking case study, where processes are modelled using a concrete notation that conforms to the proposed formal syntax and then executed in a state-of-the-art BPM system where the implemented artefacts are deployed.
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| 8. |
- Johannesson, Paul, et al.
(författare)
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Business Process Management with Social Software Systems : A New Paradigm for Work Organisation
- 2009
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Ingår i: BUSINESS PROCESS MANAGEMENT WORKSHOPS. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 9783642003271 ; , s. 659-665
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Konferensbidrag (refereegranskat)abstract
- Business process management systems are systems aimed to support the management of business processes in organizations. In recent years social software has emerged as all alternative approach for production and work management. In this paper, we contrast the two, identify and analyse similarities and differences, and propose a set of guidelines Suggesting how they can be used ill complementary ways to support work in organizations.
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| 9. |
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| 10. |
- Juell-Skielse, Gustaf, et al.
(författare)
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Design of an Open Social e-Service for Assisted Living
- 2010
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Ingår i: IFIP EGOV 2010. - Berlin, Heidelberg : Springer. - 9783642147982
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- E-government has emerged as one of the most promising means to reform the public sector. E-government is now being used to improve services for assisted living. The purpose of assisted living services is to provide ways for elderly people to continue to live at home. However, these services require formal decisions by local government officials. Therefore Swedish municipalities aim to move control toward citizens to reduce authoritative barriers and to simplify administration. In this paper we report experiences from developing an open social e-service for assisted living. The major objectives are to relocate control to the citizen and to establish a highly integrated and efficient administrative process. It is designed to meet legal requirements of the Swedish Social Services Act. In order to achieve the objectives several process innovation techniques have been applied. During the design process we experienced several legal, organizational and technical challenges which we report in this paper.
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| 11. |
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| 12. |
- La Rosa, Marcello, et al.
(författare)
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Managing Process Model Complexity via Abstract Syntax Modifications
- 2011
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Ingår i: IEEE Transactions on Industrial Informatics. - 1551-3203 .- 1941-0050. ; 7:4, s. 614-629
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Tidskriftsartikel (refereegranskat)abstract
- As a result of the growing adoption of Business Process Management (BPM) technology, different stakeholders need to understand and agree upon the process models that are used to configure BPM systems. However, BPM users have problems dealing with the complexity of such models. Therefore, the challenge is to improve the comprehension of process models. While a substantial amount of literature is devoted to this topic, there is no overview of the various mechanisms that exist to deal with managing complexity in (large) process models. As a result, it is hard to obtain an insight into the degree of support offered for complexity reducing mechanisms by state-of-the-art languages and tools. This paper focuses on complexity reduction mechanisms that affect the abstract syntax of a process model, i.e. the formal structure of process model elements and their interrelationships. These mechanisms are captured as patterns so that they can be described in their most general form, in a language- and tool-independent manner. The paper concludes with a comparative overview of the degree of support for these patterns offered by state-of-the-art languages and tools, and with an evaluation of the patterns from a usability perspective, as perceived by BPM practitioners.
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| 13. |
- La Rosa, Marcello, et al.
(författare)
-
Managing Process Model Complexity via Concrete Syntax Modifications
- 2011
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Ingår i: IEEE Transactions on Industrial Informatics. - 1551-3203 .- 1941-0050. ; 7:2, s. 255-265
-
Tidskriftsartikel (refereegranskat)abstract
- While Business Process Management (BPM) is an established discipline, the increased adoption of BPM technology in recent years has introduced new challenges. One challenge concerns dealing with the ever-growing complexity of business process models. Mechanisms for dealing with this complexity can be classified into two categories: i) those that are solely concerned with the visual representation of the model, and ii) those that change its inner structure. While significant attention is paid to the latter category in the BPM literature, this paper focuses on the former category. It presents a collection of patterns that generalize and conceptualize various existing mechanisms to change the visual representation of a process model. Next, it provides a detailed analysis of the degree of support for these patterns in a number of state-of-the-art languages and tools. The paper concludes with the results of a usability evaluation of the patterns conducted with BPM practitioners.
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| 14. |
- Lönn, Carl-Mikael, et al.
(författare)
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Configurable Process Models for the Swedish Public Sector
- 2012
-
Ingår i: Advanced Information Systems Engineering. - Cham : Springer Berlin/Heidelberg. - 9783642310942 - 9783642310959 ; , s. 190-205
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Konferensbidrag (refereegranskat)abstract
- Process orientation and e-services have become essential in revitalizing local government. Although most municipalities oer similar services there is little reuse of e-services or underlying process models among municipalities. Congurable process models represent a promis- ing solution to this challenge by integrating numerous variations of a process in one general model. In this study, design science is used to de- velop a congurable process model to capture the variability of a num- ber of dierent processes. The results include a validated congurable process model for social services, a benets analysis and directions for future development. Although the results are perceived useful by munic- ipal ocials, there are several challenges to be met before the benets of congurable process models are fully utilized.
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| 15. |
- Ouyang, C., et al.
(författare)
-
The business process execution language
- 2010
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Ingår i: Modern Business Process Automation. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642031229 ; , s. 385-400
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Bokkapitel (refereegranskat)abstract
- The number of commercial tools for workflow and business process management that have emerged over the past two decades is considerable. In the past, lack of standardization led to a situation where each of these tools implemented a different language. As shown by the tool evaluations undertaken using the workflow patterns, many of these languages suffered from clear limitations in terms of their expressiveness and suitability to capture nontrivial business processes. By now, industry consolidation has rendered most of these languages obsolete. In parallel, standardization efforts initiated by tool vendors have led to the definition of two standard languages for capturing business processes, namely the Business Process Modeling Notation (BPMN) and the Web Services Business Process Execution Language (WS-BPEL or BPEL for short). BPMN is a business processmodeling notation intended to facilitate communication between domain analysts and to support decision-making based on techniques such as cost analysis, scenario analysis, and simulation. BPMN models are not meant to be directly executable, although they may serve as input to software development projects. A comparison between BPMN and YAWL and a method for mapping BPMN diagrams into YAWL nets are given in Chap. 13. Meanwhile, BPEL is a language for defining executable business processes. In this respect, it can be seen as competing in the same space as YAWL. Yet, the original motivation and design of YAWL are very different from those of BPEL, and this fact transpires in profound differences between these two languages. BPEL is intended to support the definition of a class of business processes known as Web service orchestrations. In a Web service orchestration, one service (the orchestrator) interacts with a number of other services. The focus of BPEL is therefore on capturing interactions between a given process and a set of partners (represented as Web services). The logic of the interactions is described as a composition of communication actions (send, receive, send/receive, etc.). These communication actions are interrelated by control-flow dependencies expressed through constructs corresponding to parallel, sequential, and conditional execution, event, and exception handling.
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| 16. |
- Ouyang, Chun, et al.
(författare)
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The business process execution language
- 2009
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Ingår i: Modern business process automation. - Berlin : Springer. - 9783642031212 ; , s. 385-400
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 17. |
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| 18. |
- Recker, Jan, et al.
(författare)
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Representation theory versus workflow patterns - The case of BPMN
- 2006
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Ingår i: Conceptual Modeling - ER 2006, Proceedings. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 354047224X ; , s. 68-83
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Konferensbidrag (refereegranskat)abstract
- Selecting an appropriate process modeling language forms an important task within business process management projects. A wide range of process modeling languages has been developed over the last decades, leading to an obvious need for rigorous theory to assist in the evaluation and comparison of the capabilities of these languages. While academic progress in the area of process modeling language evaluation has been made on at least two premises, Representation Theory and Workflow Patterns, it remains unclear how these frameworks relate to each other. We use a generic framework for language evaluation to establish similarities and differences between these acknowledged reference frameworks and discuss how and to what extent they complement respectively substitute each other. Our line of investigation follows the case of the popular BPMN modeling language, whose evaluation from the perspectives of Representation Theory and Workflow Patterns is reconciled in this paper.
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| 19. |
- Regardt, Olle, et al.
(författare)
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Anchor Modeling An Agile Modeling Technique Using the Sixth Normal Form for Structurally and Temporally Evolving Data
- 2009
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Ingår i: CONCEPTUAL MODELING - ER 2009, PROCEEDINGS. - Berlin, Heidelberg : SPRINGER-VERLAG BERLIN. - 9783642048395 ; , s. 234-
-
Konferensbidrag (refereegranskat)abstract
- Maintaining and evolving data warehouses is a complex, error prone, and time consuming activity. The main reason for this state of affairs is that the environment of a data warehouse is in constant change, while the warehouse itself needs to provide a stable and consistent interface to information spanning extended periods of time. In this paper, we propose a modeling technique for data warehousing, called anchor modeling, that offers non-destructive extensibility mechanisms, thereby enabling robust and flexible management of changes in source systems. A key benefit of anchor modeling is that changes in a data warehouse environment only require extensions, not modifications, to the data warehouse. This ensures that existing data warehouse applications will remain unaffected by the evolution of the data warehouse, i.e. existing views and functions will not have to be modified as a result of changes in the warehouse model.
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| 20. |
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| 21. |
- Russell, N., et al.
(författare)
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On the suitability of UML 2.0 Activity Diagrams for business process modelling
- 2006
-
Ingår i: Conferences in Research and Practice in Information Technology.
-
Konferensbidrag (refereegranskat)abstract
- UML is posited as the "swiss army knife" for systems modelling and design activities. It embodies a number of modelling formalisms that have broad applicability in capturing both the static and dynamic aspects of software systems. One area of UML that has received particular attention is that of Activity Diagrams (ADs), which provide a high-level means of modelling dynamic system behaviour. In this paper we examine the suitability of UML 2.0 Activity Diagrams for business process modelling, using the Workflow Patterns as an evaluation framework. The Workflow Patterns are a collection of patterns developed for assessing control-flow, data and resource capabilities in the area of Process Aware Information Systems (PAIS). In doing so, we provide a comprehensive evaluation of the capabilities of UML 2.0 ADs, and their strengths and weaknesses when utilised for business process modelling.
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| 22. |
- Rönnbäck, Lars, et al.
(författare)
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Anchor modeling : Agile information modeling in evolving data environments
- 2010
-
Ingår i: Data & Knowledge Engineering. - : Elsevier BV. - 0169-023X .- 1872-6933. ; 69:12, s. 1229-1253
-
Tidskriftsartikel (refereegranskat)abstract
- Maintaining and evolving data warehouses is a complex, error prone, and time consuming activity. The main reason for this state of affairs is that the environment of a data warehouse is in constant change, while the warehouse itself needs to provide a stable and consistent interface to information spanning extended periods of time. In this article, we propose an agile information modeling technique, called Anchor Modeling, that offers non-destructive extensibility mechanisms, thereby enabling robust and flexible management of changes. A key benefit of Anchor Modeling is that changes in a data warehouse environment only require extensions, not modifications, to the data warehouse. Such changes, therefore, do not require immediate modifications of existing applications, since all previous versions of the database schema are available as subsets of the current schema. Anchor Modeling decouples the evolution and application of a database, which when building a data warehouse enables shrinking of the initial project scope. While data models were previously made to capture every facet of a domain in a single phase of development, in Anchor Modeling fragments can be iteratively modeled and applied. We provide a formal and technology independent definition of anchor models and show how anchor models can be realized as relational databases together with examples of schema evolution. We also investigate performance through a number of lab experiments, which indicate that under certain conditions anchor databases perform substantially better than databases constructed using traditional modeling techniques.
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| 23. |
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| 24. |
- Wohed, Petia, et al.
(författare)
-
Business Process Management for Open E-Services in Local Government Experience Report
- 2011
-
Ingår i: Enterprise, Business-Process and Information Systems Modeling. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 9783642217586
-
Konferensbidrag (refereegranskat)abstract
- E-government has become one of the most prominent means to reform the public sector. Building e-government embraces a variety of efforts both at a centralised level, (e.g. the integration of and communication between systems across different agencies, domains and geographies), and at local levels such as the development of e-services for the provision of 24/7 public sector agencies. In this paper, we report on the results of a project aimed to develop e-services as a part of the e-government initiative in Sweden. The project was carried out at the elderly and handicapped unit at one municipality. The e-services considered in the project were also intended to open up the underlying social services and are, therefore, referred to as open e-services. We discuss the results of the development of one such e-service as a proof-of concept solution for which a business process management system is used. We present the solution and explain the features of using a business process management system as a back-end system.
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| 25. |
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| 26. |
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| 27. |
- Wohed, Petia, et al.
(författare)
-
On the suitability of BPMN for business process modelling
- 2006
-
Konferensbidrag (refereegranskat)abstract
- In this paper we examine the suitability of the Business Process Modelling Notation (BPMN) for business process modelling, using the Workflow Patterns as an evaluation framework. The Workflow Patterns are a collection of patterns developed for assessing control-flow, data and resource capabilities in the area of Process Aware Information Systems (PAISs). In doing so, we provide a comprehensive evaluation of the capabilities of BPMN, and its strengths and weaknesses when utilised for business process modelling. The analysis provided for BPMN is part of a larger effort aiming at an unbiased and vendor-independent survey of the suitability and the expressive power of some mainstream process modelling languages. It is a sequel to previous work in which languages including BPEL and UML Activity Diagrams were evaluated.
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| 28. |
- Wohed, Petia, et al.
(författare)
-
Open source workflow : A viable direction for BPM? Extended abstract
- 2008
-
Ingår i: Advanced Information Systems Engineering, Proceedings. - Cham : Springer International Publishing. - 9783540695332 ; , s. 583-586
-
Konferensbidrag (refereegranskat)abstract
- With the growing interest in open source software in general and business process management and workflow systems in particular, it is worthwhile investigating the state of open source workflow management. The plethora of these offerings (recent surveys such as [4,6], each contain more than 30 such systems) triggers the following two obvious questions: (1) how do these systems compare to each other; and (2) how do they compare to their commercial counterparts. To answer these questions we have undertaken a detailed analysis of three of the most widely used open source workflow management systems [1]: jBPM, OpenWFE, and Enhydra Shark. Another obvious candidate would have been the open-source workflow management system YAWL ( www.yawlfoundation.org ). However, given the authors’ close involvement in the development of YAWL, we did not include it in our evaluation.
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| 29. |
- Wohed, Petia, et al.
(författare)
-
Open Source Workflow. A Viable Direction for BPM?
- 2008
-
Ingår i: Proceeding of the 20th International Conference on Advanced Information Systems Engineering (CAiSE'08).
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 30. |
- Wohed, Petia, et al.
(författare)
-
Open source workflow systems
- 2010
-
Ingår i: Modern Business Process Automation. - Berlin, Heidelberg : Springer Berlin/Heidelberg. - 9783642031205 ; , s. 401-434
-
Bokkapitel (refereegranskat)abstract
- The goal of this chapter is to broaden the reader's knowledge in the area of open sourceWfMS. To achieve this we introduce three other open sourceWfMSs. These are OpenWFE, jBPM and Enhydra Shark, which according to download statistics (July 2008) are the open source systems with the largest number of downloads (closely followed by YAWL). The purpose of the presentation is not to provide detailed insight into each of these systems, but rather to expose the reader to different approaches and to discuss the similarities and differences of these approaches with regard to YAWL. The chapter is divided into three parts, each describing one system. The descriptions follow the same format as much as possible. First, some background information is given. Subsequently, the architecture is described. Then an introduction to the underlying process modeling language is given from control-flow, data, and resource perspectives. After that, a part of the Order Fulfillment case is modeled and the solution briefly discussed. Each description concludes with a brief comparison of the system and YAWL. All files containing the discussed examples are distributed for test-runs with the electronic supplement of the book.
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| 31. |
- Wohed, Petia, et al.
(författare)
-
Open source workflow systems
- 2010
-
Ingår i: Modern business process automation. - Berlin : Springer Berlin/Heidelberg. - 9783642031212 ; , s. 401-434
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
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| 32. |
- Wohed, Petia, et al.
(författare)
-
Patterns-based evaluation of open source BPM systems : The cases of jBPM, OpenWFE, and Enhydra Shark
- 2009
-
Ingår i: Information and Software Technology. - : Elsevier BV. - 0950-5849 .- 1873-6025. ; 51:8, s. 1187-1216
-
Tidskriftsartikel (refereegranskat)abstract
- In keeping with the proliferation of free software development initiatives and the increased interest in the business process management domain, many open source workflow and business process management systems have appeared during the last few years and are now under active development. This upsurge gives rise to two important questions: What are the capabilities of these systems? and How do they compare to each other and to their closed source counterparts? In other words: What is the state-of-the-art in the area?. To gain an insight into these questions, we have conducted an in-depth analysis of three of the major open source workflow management systems - jBPM, OpenWFE, and Enhydra Shark, the results of which are reported here. This analysis is based on the workflow patterns framework and provides a continuation of the series of evaluations performed using the same framework on closed source systems, business process modelling languages, and web-service composition standards. The results from evaluations of the three open source systems are compared with each other and also with the results from evaluations of three representative closed source systems: Staffware, WebSphere MQ and Oracle BPEL PM. The overall conclusion is that open source systems are targeted more toward developers rather than business analysts. They generally provide less support for the patterns than closed source systems, particularly with respect to the resource perspective, i.e. the various ways in which work is distributed amongst business users and managed through to completion.
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| 33. |
- Wohed, Petia, et al.
(författare)
-
Patterns-based Evaluation of Open Source BPM Systems: The Cases of jBPM, OpenWFE, and Enhydra Shark
- 2007
-
Rapport (övrigt vetenskapligt/konstnärligt)abstract
- The abundance of approaches towards business process specification and enactment is well-known and is an ongoing source of confusion. One of the objectives of the Workflow Patterns Initiative is to provide an insight into comparative strenghts and weaknesses of the state-of-the-art in Process Aware Information Systems. Over the past years many approaches to business process specification including commercial offerings, modelling languages, and academic prototypes have been evaluated in terms of the patterns in order to assess their capabilities in terms of expressing control-flow dependencies, data manipulation and resource allocation directives. With the increasing maturity and popularity of open source software it seems opportune to take a closer look at such offerings in the Business Process Management area. This report provides a patterns-based evaluation of three well-known open source workflow management systems: jBPM, OpenWFE, and Enhydra Shark.
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| 34. |
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| 35. |
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