Meta-model for Object-Oriented Hierarchical Systems

Lam Son Lê, Alain Wegmann
2004
Rapport ou document de travail

In enterprise architecture, the goal is to integrate business resources and IT resources in order to improve an enterprises competitiveness. In an enterprise architecture project, the development team constructs a hierarchical model that represents the enterprise. Our goal is to develop a hierarchical object-oriented model that can serve as enterprise model. The state of the art in hierarchical object-oriented models is such that no models are suited for that purpose. Existing hierarchical models either represent the hierarchy in an inconsistent way, or focus on only one system of interest, or inadequately model actions, or lack a complete meta-model to keep the traceability across the hierarchy. In this paper, we present a meta-model that defines a hierarchical object-oriented model of systems such as those found in enterprise architecture. Millers organizational levels and the Reference Model of Open Distributed Processing are the foundations of our meta-model that is currently implemented in a web-based CAD tool using Java technology. This paper ends by presenting an example developed with our CAD tool.

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Lam Son Lê, Alain Wegmann
2004
Rapport ou document de travail

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https://infoscience.epfl.ch/record/55771?ln=fr

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Concepts associés (10)

Concepts associés

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Publications associées (14)

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Architecture d'entreprise

L'architecture d'entreprise est une école visant à représenter de manière systémique l'entreprise, sous forme de composants. Ainsi le découpage en composants permet à l'entreprise de faciliter les a

Système

Un système est un ensemble d' interagissant entre eux selon certains principes ou règles. Par exemple une molécule, le système solaire, une ruche, une société humaine, un parti, une armée etc. Un s

Cadre d'architecture

Un cadre d'architecture est une spécification sur la façon d'organiser et de présenter une architecture de systèmes ou l'architecture informatique d'un organisme. Étant donné que les disciplines de

Multi-level System Modeling Using the Foundation Concepts of RM-ODP

Lam Son Lê, Alain Wegmann

A specification in Enterprise Architecture (EA) requires the modeling of an enterprise across multiple levels, from the markets in which it operates down to the implementation of the IT systems that support its operations. Our goal is the development of a method and of a CAD tool that support such modeling. To achieve our goal, we need an ontology to represent systematically all the systems at the multiple levels identified in an enterprise. We base our ontology on the foundation modeling concepts defined in Part 2 of ISO/ITU Standard "Reference Model of Open Distributed Processing" (RM-ODP). In this paper, we present how multi-level systems can be represented using directly the concepts defined in Part 2 of the RM-ODP. Our modeling approach differs from that defined in Part 3 of the RM-ODP, which focuses on the specification of IT systems in terms of viewpoint models representing the IT system environment and its construction. The benefit of our approach is the capability to model systematically and consistently the multiple systems represented in a company.

2006

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Enterprise Architecture (EA) requires modeling enterprises across multiple levels (from markets down to IT systems) i.e. modeling hierarchical systems. Our goal is to build a Computer Aided Design (CAD) tool for EA. To be able to build this CAD tool, we need an ontology that can be used to describe hierarchical systems. The Reference Model of Open Distributed Processing (RM-ODP) was originally defined for describing IT systems and their environment. RM-ODP can also be suited to general, hierarchical, system modeling and, hence, can be used to model enterprises. In this paper, we first give an overview of our CAD tool and we present then how Part 2 and Part3 of RM-ODP were integrated to define a computer-interpretable ontology that is used in the CAD tool. This ontology is formalized using the Alloy declarative language. Last, we illustrate how the CAD tool can render Unified Modeling Language (UML) diagrams by showing selected aspects of the hierarchical systems.

2005

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Hierarchy-oriented modeling of enterprise architecture using reference-model of open distributed processing

Lam Son Lê, Alain Wegmann

Modeling Enterprise Architecture (EA) requires the representation of multiple views for an enterprise. This could be done by a team of stakeholders that essentially have different backgrounds. One way to do this is to structure the model into hierarchical levels each of which can be of interest to just some, not all, stakeholders. Due to the multidisciplinary nature of EA, stakeholders simply cannot choose a single modeling approach, even a widely-recognized one, to build their enterprise model and make it viewable and understandable to the whole team. Developing a modeling framework that can be applied uniformly throughout the entire enterprise model and that can be used by all stakeholders is thus challenging. We based our work on the RM-ODP (Reference Model of Open Distributed Processing) - a standardization effort that defines essential concepts for modeling distributed systems, as well as ODP-related international standards/recommendations, to develop such a modeling framework that we call SeamCAD. This framework consists of a computer-aided tool and a language behind the tool for modeling EA in a hierarchical manner. SeamCAD makes RM-ODP applicable in the context of multi-level EA and consolidates the SEAM - a family of methods for seamless integration between disciplines. (C) 2012 Elsevier B.V. All rights reserved.

Elsevier2013

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