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An Enterprise Ontology Approach for Defining Enterprise<br />

<strong>Information</strong> Architecture<br />

Bernardo Gomes, André Vasconcelos <strong>and</strong> Pedro Sousa<br />

Instituto Superior Técnico, Oeiras, Portugal<br />

INOV, Lisboa, Portugal<br />

bernardosilvagomes@gmail.com<br />

<strong>and</strong>re.vasconcelos@ist.utl.pt<br />

pedro.sousa@ist.utl.pt<br />

Abstract: The role played by information in organizations is becoming increasingly important, since it is<br />

becoming clear its relevance as a central background for Enterprise Architecture <strong>and</strong> Enterprise Engineering.<br />

The enormous amount of <strong>Information</strong> in organizations leads to the development of <strong>Information</strong> Architectures in<br />

order to support this problem. Thus, the Portuguese Public Administration, being aware of that, wants to be well<br />

prepared regarding the information context, having a consistent <strong>Information</strong> Architecture to be used as a<br />

reference. Such architecture aims to identify the fundamental business information, define the data independently<br />

from the applications or systems, <strong>and</strong> provide the basis for corporative data management. This work aims to<br />

contribute in the development of that <strong>Information</strong> Architecture, introducing the Enterprise Ontologies theme in the<br />

Portuguese Public Administration context, as a new approach for Enterprise Architecture, especially for<br />

<strong>Information</strong> Architecture development. In this paper we present a new methodology for developing <strong>Information</strong><br />

Architecture, based on the DEMO methodology, in particular in the Transaction concept in order to extract<br />

<strong>Information</strong> Entities, their Attributes <strong>and</strong> Relationships for an <strong>Information</strong> Architecture. In our research this<br />

methodology is being tested in some case studies among the Portuguese Public Administration. The<br />

methodology proposed major steps are: (1) collecting of the necessary amount of data about the case study, (2)<br />

which must be resumed in some legible text. From that text, the first steps of DEMO are performed ((3) Performa-<br />

Informa-Forma Analysis, (4) Coordination-Actors-Production Analysis, (5) Transaction Pattern Synthesis), in<br />

order to identify the Transactions that describe that environment. Based on those Transactions, (6) both the<br />

<strong>Information</strong> Entities <strong>and</strong> Attributes are identified. In order to identify Relationships between those entities, (7) the<br />

Result Structure Analysis step is performed. To complete the methodology, <strong>and</strong> based on the previously results,<br />

an (8) Entity-Relationship is designed to represent the entities <strong>and</strong> their relationships.<br />

Keywords: enterprise architecture, information architecture, information entities, attributes, relationships,<br />

enterprise ontologies, DEMO<br />

1. Introduction<br />

Despite the awareness that we live today in an information society, in many organizations information<br />

is still not well managed (Martin, Dmitriev <strong>and</strong> Akeroyd, 2010: 6-12). Thus, <strong>Information</strong> Architecture<br />

(IA) arises as a top discipline towards the improvement of information management, since it can be<br />

viewed as a structured set of multidimensional interrelated elements that support all information<br />

processes (Watson, 2000: 7059). The highest-level of IA is usually very similar among organizations<br />

from the same business area (Inmon, 2000), which allows the development of reference IAs. Public<br />

administration is not an exception in this context, since the amount of information that it deals with is<br />

larger <strong>and</strong> more dispersed. This sense, it also must have an IA that describes the information entities<br />

that underlie the business processes execution (Vasconcelos, 2007).<br />

This work proposes to contribute to the development of an IA to the Portuguese public administration,<br />

susceptible to be used as a reference. It intends to identify <strong>and</strong> describe the information entities that<br />

cut across the entire public administration. Furthermore, it proposes a new approach to the<br />

formulation of that IA, so that it also considers the essence, coherence, consistence, completeness<br />

<strong>and</strong> objectivity that should be important features of it. This new approach is based in the enterprise<br />

ontologies theme, taking in consideration the DEMO methodology.<br />

Figure 1 presents the problem definition, <strong>using</strong> a conceptual map. In that picture, the most relevant<br />

motivation concepts are depicted, <strong>and</strong> also how they are related to each other. Finally, the<br />

relationships stressed with an orange dashed line are the core problems of this work.<br />

This article is structured in order to address the main themes that are the support for this work. Firstly<br />

there is a review in terms of the ‘state of the art’, in order to describe the major theoretical concepts<br />

that support this work. The themes covered are: enterprise ontologies (including the Ѱ-theory <strong>and</strong><br />

DEMO) <strong>and</strong> information architecture (including Inmon taxonomy). After this theoretical review, it will<br />

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