Books by Daniel J. Blum

About Daniel J. Blum

Daniel J. Blum, a principal at Rapport Communication, has been active in open networking research and development since the early 1980s. He is well-known as a writer, educator, and consultant on integrated messaging and directory services. He has worked with key standards development committees, implemented communications systems, conducted extensive surveys of industry products, and advised industry and government users on the planning, architecture, procurement, and deployment of modern networks and value-added messaging services based on multiple technologies.

David M. Litwack is managing director of Open Systems Institutes International and president of DML Associates, consultancies specializing in education and training for open systems technologies. He has over twenty years experience in telecommunications and data communications including packet switching, electronic messaging, directory services, and testing and certification.