Assessing System Availability Using an Enterprise Architecture Analysis Approach

During the last decade, a model based technique known as enterprise architecture has grown into an established approach for management of information systems in organizations. The use of enterprise architecture primarily promotes good decision-making and communication between business and IT stakeholders. This paper visualizes a scenario where enterprise architecture models are utilized to evaluate the availability of an information system. The problem is approached by creating models based on metamodels tailored to the domain of enterprise architecture analysis. As the instantiated models are fed with data particular to the information system, one can deduce how the organization needs to act in order to improve the system ́s availability.