Merging and Outsourcing Information Systems with UML

Merging and Outsourcing Information Systems with UML

Herman Balsters (University of Groning, The Netherlands)
Copyright: © 2007 |Pages: 27
DOI: 10.4018/978-1-59904-174-2.ch011
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Businesses can change their business structure by merging with other companies or, on the other end of the spectrum, by smoothly outsourcing some of their business processes to other more specialized parties. In this paper we will concentrate on conceptual modelling of merging and outsourcing information systems. Merging of a collection of information systems will be defined as the construction of a global information system that contains exactly the functionality of the original collection of systems. Such global information systems are called federated information systems, when we wish to address the situation where the component systems are so-called legacy systems; i.e. systems that are given beforehand and which are to interoperate in an integrated single framework in which the legacy systems are to maintain as much as possible their respective autonomy. Two major problems in constructing federated information systems concern achieving and maintaining consistency and a uniform representation of the data on the global level of the federation. The process of creation of uniform representations of data is known as data extraction, whereas data reconciliation is concerned with resolving data inconsistencies. Outsourcing of an information system, on the other hand, will be defined as the handing over of part of the functionality of the original system to an outside party (the supplier). Such functionality typically involves one or more operations, where each operation satisfies certain input- and output requirements. These requirements will be defined in terms of the ruling service level agreements (SLAs). We will provide a formal means to ensure that the outsourcing relationship between outsourcing party and supplier, determined by a SLA, satisfies specific correctness criteria. Formal specifications as offered in this paper can prove their value in the setup and evaluation of outsourcing contracts. We shall describe a uniform semantic framework for specification of both federated and outsourced information systems based on the UML/OCL data model. In particular, we will show that we can represent so-called exact views in UML/OCL, providing the means to capture the duality relation between federating and outsourcing.

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Table of Contents
Olov Forsgren
Peter Rittgen
Peter Rittgen
Chapter 1
Lars Baekgaard
This chapter presents an extension that makes UML better suited for business activity modeling. We extend UML’s activity diagrams with events in... Sample PDF
Extending UML to Support Business Activity Modeling
Chapter 2
Pablo David Villarreal, Enrique Salomone, Omar Chiotti
This chapter describes the application of MDA (Model-Driven Architecture) and UML for the modeling and specification of collaborative business... Sample PDF
Modeling and Specification of Collaborative Business Processes with a MDS Approach and a UML Profile
Chapter 3
Anna Medve
This chapter introduces the User Requirements Notation (URN) standardized formal methods and its joint use with Unified Modeling Language (UML) in... Sample PDF
Enterprise modeling with the Joint Use of User Requirements Notation and UML
Chapter 4
Pedro Sousa, Artur Caetano, André Vasconcelos, Carla Pereira, José Tribolet
Organizations make extensive use of information systems to support planning, decision making, controlling and to leverage competitive advantage.... Sample PDF
Enterprise Architecture Modeling with the Unified Modeling Language
Chapter 5
Stefan Dietze
This chapter introduces a conceptual metamodel which enables the assessment and semi-formal modeling of business processes in the domain of software... Sample PDF
Adaptation of the UML to Formalized Software Development Process Assessment and Modeling- Dedicated Metamodel and Case Study
Chapter 6
Sandy Tyndale-Biscoe, Antonio Vallecillo, Bryan Wood
RM-ODP is a standard defining a framework for the specification of large distributed systems that is based on solid foundations, and that defines... Sample PDF
Enterprise Modeling with ODP and UML
Chapter 7
Peter Rittgen
The Language-Action Perspective provides a communicative view on the organization. In it an organization is characterized as a system of interacting... Sample PDF
A Language-Action Approach to the Design of UML Models
Chapter 8
andra Haraldson, Mikael Lind, Jan Loausson
Business modeling is concerned with asking questions and giving answers to these questions. In systems development different types of diagrams... Sample PDF
Using UML Notation for Modeling Business Interaction
Chapter 9
Peter Fettke, Peter Loos, Jörg Zwicker
Within the Information Systems field, information modeling is a vital instrument to develop information systems. However, the modeling process is... Sample PDF
Using UML for Reference Modeling
Chapter 10
Kamyar Sarshar, Peter Loos
Given that business processes are performed in an organizational context, it is essential that process modeling notations provide proper mechanisms... Sample PDF
Modeling the Resource Perspective of Business Processes by UML Activity Diagram and Object Petri Net
Chapter 11
Herman Balsters
Businesses can change their business structure by merging with other companies or, on the other end of the spectrum, by smoothly outsourcing some of... Sample PDF
Merging and Outsourcing Information Systems with UML
Chapter 12
András Pataricza, András Balogh, Lazlos Gonczy
This chapter introduces the main notions related to the dependability of applications in a self-contained way in order to bring the topic near to... Sample PDF
Verification and Validation of Nonfunctional Aspects in Enterprise Modeling
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