About EAAT
During the last decade, enterprise architecture has grown into an established approach for holistic management of information systems in an organization.
Enterprise architecture is model-based, in the sense that diagrammatic descriptions of the systems and their environment constitute the core of the approach. A number of enterprise architecture initiatives have been proposed, such as The Open Group Architecture Framework (TOGAF), Enterprise Architecture Planning (EAP), the Zachman Framework, Intelligrid, Federal Enterprise Architecture (FEA)and the military architectural frameworks such as DoDAF, MODAF and NAF. What constitutes a “good” enterprise architecture model has thus far not been clearly defined. The reason is that the “goodness” of a model is not an inherent property, but contingent on the purpose the model is intended to fill, i.e. what kind of analyses it will be subjected to. For instance, if one seeks to employ an enterprise architecture model for evaluating the performance of an information system, the information required from the model differs radically from the case when the model is used to evaluate system interoperability.
Enterprise architecture analysis is the application of property assessment criteria on enterprise architecture models. For instance, one investigated property might be the information security of a system and a criterion for assessment of this property might be “If the architectural model of the enterprise features an intrusion detection system, then this yields a higher level of information security than if there is no such system.” Criteria and properties such as these may be extracted from academic literature, or from empirical measurements.
These pages presents a software tool for the analysis of enterprise architecture models. The tool guides the creation of enterprise information system scenarios in the form of enterprise architecture models and generates quantitative assessments of the scenarios as they evolve. Assessments can be of various quality attributes, such as information security, interoperability, maintainability, performance, availability, usability, functional suitability, and accuracy.
A number of enterprise architecture software tools are available on the market, including etis, System Architect, Aris, and Qualiware. Although some of these provide possibilities to sum costs or strategic value of a set of modeled objects, none have such significant capabilities for quality analysis as presented here.