This report presents results from an evaluation of a current awareness service for Swedish social scientists. The service was based on the computerized version of Social Science Citation Index (SSCI). For the study an evaluation model was developed where the interaction between user and system is evaluated according to specific criteria for each phase of the information-retrieval process. Generally, system performance during the thirteen week test-period was good compared to other data-bases. However, the evaluation suggests various means of improving the service. One of the most crucial factors affecting system performance and user satisfaction seems to be user knowledge about retrieval functions. Clarity and completeness of queries, degree of profiling activity, and coverage of the data base were other factors. While output was somewhat low, the mean precision rate was satisfactory. Users' evaluation of the SSCI usefulness showed about 65% of the 500 users considered the SSCI to be useful to them. The general value of SSCI is indicated by the fact that, during the rather short test-period, a majority of users increased their knowledge about current research and became acquainted with journals which they did not know previously. (Author)