This document establishes the Framework Version 1 for the PRIME (Privacy and Identity Management

for Europe) project, which is a holistic framework that provides a detailed map of privacy-enhancing

identity management: it defines the problem space, the vision of PRIME, terminology and concepts,

models for users, metaphors, application scenarios, the legal, social and technical options, possible

business cases, and the technical challenges. In particular, the framework also encompasses a technical

architecture that specifically focuses on how the various mechanisms can or must interrelate.

The PRIME Framework V1 describes work in progress and presents first project results that were

achieved after the first year of the project. It will be further elaborated and refined for the next PRIME

Framework versions.

In today's information society, privacy-enhanced identity management can help users to control their personal spheres when makinguse of e-services. However, privacy is a difficult concept to visualise, and comprehensible and intuitive user interfaces are needed to make such systems usable and informative for normal users. Typically, usability tests are used as a means to achieve this. This paper describes how the concept of identity management was introduced to the test subjects before a series of tests on prototypes and mock-ups of user interfaces were conducted. One reason why this was necessary was to provide the test subjects with enough context information to be able to perform the tests. Both oral and written introductions have been used, as well as introductory films. This paper discusses how these introductions have evolved during the usability testing process, and it further elaborates on which kinds of introductions are most suitable for which kind of usability test.