Biography Åsa Lindström is a PhD Student at the Department of Industrial Information and Control Systems at the Royal Institute of Technology, KTH, Stockholm Sweden. In her research she focus on the CIO role and aims at identify what requirements the management should state for a IT-system (to be built) in order to create a healthy and efficient enterprise architecture and how to assess what value the IT organization and IT systems deliver.

Presentation
Balancing Value, Cost, and Credibility in EA Modelling
In Enterprise Architecture models a large amount of information is stored. This information can be used to answer questions, e.g. “How good is our information security?” or “How can we improve data quality?”. To answer these questions we must first know how to measure information security and data quality. They can be measured in multiple ways, and collecting all measures can be time-consuming and expensive. So - what measurements should we collect? Firstly, collect key measurements. Secondly, collect information that is easy to find, and therefore cheaper to extract, and thirdly collect information that has high credibility so that you can confide in the answer. This is a balancing act. Just asking one person is a quick way to find information, but can we trust it? Does the person have the right knowledge or political reasons to give that answer? A checklist for credibility and an overview to information search cost is given.