- KonferenzbeitragOn the usability of business process modelling tools - a review and future research directions(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Shitkova, Maria; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtThe choice of a business process modelling (BPM) tool in combination with the selection of a modelling language is one of the crucial steps in BPM project preparation. Different aspects influence the decision: tool functionality, price, modelling language support, etc. In this paper we discuss the aspect of usability, which has already been recognized as an important topic in software engineering and web design. We conduct a literature review to find out the current state of research on the usability in the BPM field. The results of the literature review show, that although a number of research papers mention the importance of usability for BPM tools, real usability evaluation studies have rarely been undertaken. Based on the results of the literature analysis, the possible research directions in the field of usability of BPM tools are suggested.
- KonferenzbeitragTowards schema evolution in object-aware process management systems(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Chiao, Carolina Ming; Kuenzle, Vera; Reichert, Manfred; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtEnterprises want to improve the lifecycle support for their businesses processes by modeling, enacting and monitoring them based on process management systems (PrMS). Since business processes tend to change over time, process evolution support is needed. While process evolution is well understood in traditional activitycentric PrMS, it has been neglected in object-aware PrMS so far. Due to the tight integration of processes and data, in particular, changes of the data and process schemes must be handled in an integrated way; i.e., the evolution of the data schema might affect the process schema and vice versa. This paper presents our overall vision on the controlled evolution of object-aware processes. Further, it discusses fundamental requirements for enabling the evolution of object-aware process schemas in PHILharmonicFlows, a framework targeting at comprehensive support of object-aware processes.
- KonferenzbeitragVisual analytics for supporting manufacturers and distributors in online sales(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Parisot, Olivier; Vierke, Gero; Tamisier, Thomas; Didry, Yoanne; Rieder, Helmut; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtThis article presents the basic concepts of OPTOSA, a Visual Analytics solution for the optimization of online sales, designed to support manufacturers in all phases of the online sales process from the product specification to the price fixing and more. OPTOSA combines a data processing module that builds and constantly updates operational knowledge related to sales positioning with a decision assistant that uses relevant aspects of the knowledge for helping the tasks of the different teams along the integrated chain of the sales. After reviewing the challenges of the approach, we discuss the first significant experiments with OPTOSA on some formalized use-cases.
- KonferenzbeitragBusiness process as a service - status and architecture(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Barton, Thomas; Seel, Christian; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtA Cloud Service is usually classified as Infrastructure as a Service, Platform as a Service or Software as a Service. This classification ist not sufficient, when Business Processes are considered. Therefore, Business Process as a Service (BPaaS) as next level of abstraction is in discussion. BPaaS is already an important topic for analysts and cloud providers. In the scientific community a discussion about BPaaS has been started. This contribution presents a literature analysis of the current state-of-the-art in BPaaS. In order to investigate how a Business Process can be built on top of a cloud service, a prototpye of an external application is presented, which is built on top of a cloud service using a RESTful API. For the realization of BPaaS existing architectures for cloud computing are discussed. A proposal for an advanced Architecture for Business Process as a Service is presented. Based on these findings, a brief outlook on future research questions concerning Business Process as a Service is derived.
- Editiertes BuchEnterprise modelling and information systems architectures - EMISA 2014(2014) Feltz, Fernand; Mutschler, Bela; Otjacques, Benoît
- KonferenzbeitragOn the role of process models in risk and disaster information management(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Kremers, Horst; Feltz, Fernand; Mutschler, Bela; Otjacques, Benoît
- KonferenzbeitragTowards an analysis driven approach for adapting enterprise architecture languages(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Kinderen, Sybren De; Ma, Qin; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtEnterprise Architecture (EA) modeling languages are increasingly used for various enterprise wide analyses. In most cases one needs to adapt EA languages to an appropriate level of detail. However such an adaptation is not straightforward. Language engineers currently deal with analysis driven language adaptation in an ad-hoc manner, adapting languages from scratch. This introduces various problems, such as a tendency to add uninteresting and/or unnecessary details to languages, while important enterprise details are not documented. Moreover, adding detail increases the complexity of languages, which in turn inhibits a language's communication capabilities. Yet experience from practice shows that architects often are communicators, next to analysts. As a result, one needs to find a balance between a model's communication and analysis capabilities. In this position paper we argue for an approach for assisting language engineers in adapting, in a controlled manner, EA languages for model-driven enterprise analyses. Furthermore, we present the key ingredients of such an approach, and use these as a starting point for a research outlook.
- KonferenzbeitragOutlining a graphical model query approach based on graph matching(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Breuker, Dominic; Dietrich, Hanns-Alexander; Steinhorst, Matthias; Delfmann, Patrick; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtThis paper outlines a graphical model query approach based on graph matching. It consists of a graphical query specification language and a matching algorithm based on graph matching that takes the query as input and returns all matches found in a model to be searched. The graphical query specification language can be used to draw model queries much like a model would be constructed. To achieve applicability in many different model analysis scenarios, the query approach provides structurally exact and structurally similar pattern matching as well as semantic comparison of model node and edge contents. Following a design science research process, we derive functional requirements for the query language and matching algorithm from the literature, outline its syntax, formally specify its matching principle, and demonstrate its functionality by providing a working prototype implementing previously identified requirements.
- KonferenzbeitragFlexibility and evolution in process-aware information systems: all problems solved ?(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Rinderle-Ma, Stefanie; Feltz, Fernand; Mutschler, Bela; Otjacques, Benoît
- KonferenzbeitragChoosing an adequate level of detail in business process modelling(Enterprise modelling and information systems architectures - EMISA 2014, 2014) Nissen, Volker; Heyn, Christian; Termer, Frank; Feltz, Fernand; Mutschler, Bela; Otjacques, BenoîtIt is a basic matter of business process modelling to determine an adequate level of model detail, a problem which also can be derived from the guidelines of modelling by Becker et al. [BRU00]. In literature, only few recommendations how to solve this problem can be found. In addition they are quite unspecific and have gaps. In this paper, we investigate which measurable factors influence the adequate detail level, and on this basis make proposals for guidelines how it can be determined in a specific application situation.