P152 - EMISA 2009 - Enterprise Modelling and Information Systems Architectures
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- KonferenzbeitragA thing called "fluid process" - beyond rigidity in business process support(Enterprise modelling and information systems architectures, 2009) Reichert, ManfredThis keynote reports on a new class of processes - so called fluid processes - whose "engineering" and "use" is indistinguishable. Fluid processes are continually being adapted and reformed to fit the actual needs and constraints of the situation in hand and to fulfill the overall goals of the involved actors in the best possible way. We present a detailed review of challenges and techniques that exist for the support of fluid processes. We give insights into their nature, discuss fundamental challenges to be tackled, summarize basic technologies enabling fluid processes at the information system level, and describe advanced applications of fluid processes.
- KonferenzbeitragIntegration of object oriented domain modeling and meta-modeling(Enterprise modelling and information systems architectures, 2009) Schlechter, Antoine; Guy, Simon; Feltz, FernandDespite a broad agreement on the benefits of model driven approaches to software engineering, the use of such techniques is still not very widespread. One of the major reasons is the appearing discouraging difficulty of metamodeling. This paper illustrates the relations, dependencies and differences between a traditional abstract object-oriented domain model and a meta-model for the same domain. It presents a new approach to model driven engineering of enterprise application software that integrates domain modeling and meta-modeling in order to take full advantage of both traditional and generative software development methods.
- KonferenzbeitragFrom process to simulation - A transformation model approach(Enterprise modelling and information systems architectures, 2009) Kloos, Oliver; Nissen, Volker; Petsch, MathiasProcess models are frequently used to visualise, analyse and control the flow of work in business processes. In principle, the information contained in process models could be used to simulate and optimise business processes with the help of simulation software. However, business process models are created for other purposes than simulation and, therefore, normally do not contain enough information to directly execute simulation studies using them. A process model first has to be converted to a simulation model which holds different information necessary for the simulation. In this paper, a transformation approach is presented which can be used to convert process models based on the event-driven process chain (EPC) notation to different simulation software systems.
- Editiertes Buch
- KonferenzbeitragHow do system and enterprise architectures influence knowledge management in software projects? - An explorative study of six software projects(Enterprise modelling and information systems architectures, 2009) Lucke, Carsten; May, Markus; Kratzke, Nane; Lechner, UlrikeThis paper covers the influence of systemand enterprise architectures on knowledge management in software development projects. The common impact of architectures is researched in the context of six case studies of medium and large sized softwareand system development as well as technical and organizational consultancy companies in the military and non-military domain. Observations are collected in a wide variety of aspects and evaluated on the basis of the Probst et al. knowledge management model [PRR06].
- KonferenzbeitragProcess flexibility: A design view and specification schema(Enterprise modelling and information systems architectures, 2009) Kannengiesser, UdoThis paper proposes a framework of process flexibility based on a view of processes as design objects. It is represented using the function-behaviourstructure (FBS) ontology of designing. The paper shows how the FBS ontology allows extending and generalising recent work on flexibility in engineering design, and how it allows applying this work to processes. The resulting framework provides a comprehensive account of process flexibility that subsumes existing approaches. Finally, the paper presents a specification schema for process flexibility, illustrated using examples of a property valuation process in the Australian lending industry.
- KonferenzbeitragAccess control for monitoring system-spanning business processes in proviado(Enterprise modelling and information systems architectures, 2009) Bassil, Sarita; Reichert, Manfred; Bobrik, Ralph; Bauer, ThomasIntegrated process support is highly desirable in environments where data related to a particular (business) process are scattered over distributed, heterogeneous information systems (IS). A process monitoring component is a much-needed module in order to provide an integrated view on all these process data. Regarding process data integration, access control (AC) issues are very important but also quite complex to be addressed. A major problem arises from the fact that the involved IS are usually based on heterogeneous AC components. For several reasons, the only feasible way to tackle the problem of AC at the process monitoring level is to define access rights for the process monitoring component, hence getting rid of the burden to map access rights from the IS level. This paper discusses requirements for AC in process monitoring, which we derived from our case studies in the automotive domain. It then presents alternative approaches for AC: the view-based and the object-based approach. The latter is retained, and a core AC model is proposed for the definition of access rights that meet the derived requirements. AC mechanisms provided within the core model are key ingredients for the definition of model extensions.
- KonferenzbeitragApplication landscape metrics: overview, classification, and practical usage(Enterprise modelling and information systems architectures, 2009) Addicks, Jan Stefan; Gringel, PhilippDue to mergers and acquisitions as well as uncoordinated projects, application landscapes of today's organizations contain redundant applications (two or more applications that have similar functionality). To consolidate the application landscape, comparisons of applications have to be performed. Application landscape metrics are seen as an appropriate instrument for such comparisons. This contribution describes a method as well as a template to classify landscape metrics. In presenting a tool prototype, we provide a first glance of how to practically employ application landscape metrics.
- KonferenzbeitragControlled flexibility and lifecycle management of business processes through extensibility(Enterprise modelling and information systems architectures, 2009) Balko, Sören; Hofstede, Arthur H. M. ter; Barros, Alistair; Rosa, Marcello La; Adams, MichaelVendors provide reference process models as consolidated, off-the-shelf solutions to capture best practices in a given industry domain. Customers can then adapt these models to suit their specific requirements. Traditional process flexibility approaches facilitate this operation, but do not fully address it as they do not sufficiently take controlled change guided by vendors' reference models into account. This tension between the customer's freedom of adapting reference models, and the ability to incorporate with relatively low effort vendorinitiated reference model changes, thus needs to be carefully balanced. This paper introduces process extensibility as a new paradigm for customizing reference pro- cesses and managing their evolution over time. Process extensibility mandates a clear recognition of the different responsibilities and interests of reference model vendors and consumers, and is concerned with keeping the effort of customer- side reference model adaptations low while allowing sufficient room for model change.
- KonferenzbeitragA survival analysis of application life spans based on enterprise architecture models(Enterprise modelling and information systems architectures, 2009) Aier, Stephan; Buckl, Sabine; Franke, Ulrik; Gleichauf, Bettina; Johnson, Pontus; Närman, Per; Schweda, Christian M.; Ullberg, JohanModern enterprises face the challenge to survive in an ever changing environment. One commonly accepted means to address this challenge and further enhance survivability is enterprise architecture (EA) management, which provides a holistic model-based approach to business/IT alignment. Thereby, the decisions taken in the context of EA management are based on accurate documentation of IT systems and business processes. The maintenance of such documentation causes high investments for enterprises, especially in the absence of information on the change rates of different systems and processes. In this paper we propose a method for gathering and analyzing such information. The method is used to analyze the life spans of the application portfolio of three companies from different industry sectors. Based on the results of the three case studies implications and limitations of the method are discussed.