A study conducted in a non profit research and development organization and the technical development department of a profit corporation was designed to develop and implement interventions that would modify the information-communication behaviors of the technical professionals in these organizations, and to measure and analyze the effects of the interventions undertaken. Special features of the methodology include an STI user view which emphasizes a market-centered approach based upon the wants and predilections of the real-world users, as opposed to the technology centered viewpoint which attempts to push user acceptance and usage of available technologies; a design perspective rather than a science research perspective; and field studies employing interventions which are measured longitudinally in two different organizational contexts. The four interventions studied include the hiring of a "high communicator"--the individual who tends the gates of technical information flow within an organization; the rearrangement of offices and people within a department; the resignation of a "high communicator"; and the progress of individual projects through time. Findings suggest a need for a close look at the "high communicator" concept to account for the professionals' individual differences in function and style, as well as differences encountered over time. The self time study method is suggested as one fruitful means of providing some measurement of process which is necessary to further understand the phenomena. (Author/MBR)