The usefulness of several retrieval interfaces was also examined. It was shown that users readily adapted to two new interfaces (listing of the 10 documents most recently printed or copied and a calendar listing) that were different from one they were already familiar with (full text search). This could be attributed to the simplicity of design of these interfaces and their relative ease of use.

Acknowledgments

Many people in Ricoh contributed in various ways to the development of the system presented in this paper. They include Michael Baxter, John Cullen, Toshio Kanoh, Dar-Shyang Lee, Alex Ono, Mark Peairs, Robert Runyon, and Kiyoshi Suzuki.

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