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For enterprises, it is important to know how the IT infrastructure contributes to the business goals set. The COBIT IT governance framework provides a high-level view how this can be achieved. However, COBIT provides no machine-readable model that allows to refer to entities (processes, goals, actions, metrics etc.). In this paper, we present an approach to create a formal model for COBIT using an...
Most human centric business activities, like the handling of an insurance claim or the design of an IT solution, do not follow a formal process model word-by-word. While there are often underlying processes in place, the real business operation typically encompasses a wider scope of actions. It includes unstructured segments of human activities, additional documents and interactions, the integration...
Web services play an important role in the development of distributed systems. Particularly, the possibility of composing already implemented web services in order to provide new functionalities is an interesting approach for building distributed applications and business processes. In this paper we focus on mismatches occurring during dynamic composition of web services. We propose an algorithm for...
Integration between business processes and business rules is necessary for some applications which not only hold numerous business knowledge or policies but also need the intercommunication among some distributed and heterogeneous components. This paper proposes a main process and multiple bypass process to focus the integration occurring between a bypass process and a rule set. In order to hold the...
Dominant trends in today's IT research such as service orientation and cloud computing will enable novel business information systems, called Emergent Systems. However, the introduction of Emergent Systems will have a significant impact and pose challenges relating to requirements engineering. In this position paper we propose and describe the so-called SoMBRERO framework that aims to address practical...
In November 2008, the User Requirements Notation (URN) was approved as a standard by the International Telecommunication Union (ITU-T). jUCMNav is the most comprehensive tool available to date that supports the definition, analysis, transformation, and management of URN requirements engineering models. URN is the first standardized framework unifying modeling concepts and notations for goals and intentions...
In this paper we propose a way to facilitate the issue of discovering the eGovernment services that address a citizen's need. This approach is implemented in an application, which we call a semantic portal. The semantic portal is part of our SemanticGov project architecture. The portal's components and its architecture are presented and explained. The portal's conceptual modeling is based on the generic...
SBVR is a new standard that defines a metamodel for business-layer vocabularies and rules. This paper summarizes SBVR features and argues that the SBVR enables definition of true ontologies. The paper also summarizes experience with a partial SBVR implementation in the context of an existing technique for modeling businesses and transforming the models into implementations. The work contributes to...
Collecting data on user activities is one of the fundamental middleware services in Web-enabled systems. The collected data is analyzed and used by various high-level services, like user profiling, accounting, security auditing, and system health monitoring. In this paper, we present architecture and performance evaluation of usage tracking components for service-oriented middleware systems. Presented...
The paper describes an annotation-based Java framework for supporting transactional Web services. We provide a framework for automated management of compensations in business activity type extended transactions. Unlike rollbacks in traditional ACID transactions, these usually require substantial implementation effort by business programmers. Our annotations provide a flexible, intuitive and easy to...
Many Web services are expected to run with high degree of security and dependability. To achieve this goal, it is essential to use a Web-services compatible framework that tolerates not only crash faults, but Byzantine faults as well, due to the untrusted communication environment in which the Web services operate. In this paper, we describe the design and implementation of such a framework, called...
Requirements modeling has been recently introduced in the UML world with the form of a new profile called SysML. This paper explores the possibility to link concepts used to describe requirements with those of the enterprise language of RM-ODP. Some correspondence rules are proposed and illustrated on a case study.
The Open Distributed Processing Reference Model (ODP-RM) provides viewpoints and abstract infrastructure guidelines that can be used for a basis for enterprise architecture, especially for an inter-enterprise architecture. The ODP-RM does not prescribe methodology for modeling itself, but provides common vocabulary and focus for description. This paper performs a brief analysis of the ODP-RM (and...
We developed a quality of service (QoS) management system to support service level management (SLM) for global enterprise services. The QoS management system is integrated with one of our enterprise services in a preproduction system, an identical system as the production system but in a test environment. Lab experiments showed that our integrated solution helps global enterprise services to better...
Self-adaptive systems are capable of changing their behaviour at runtime to meet target constraints. An important research question is how quality of service models can inform runtime adaptation. We sketch one solution to this question by application of control theory to improve performance of queued systems by means of architectural adaptation. Previous research by our group has shown how Auto Regressive...
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