DeSanctis and Poole contribute to the organization sciences in two distinct ways. First, they insightfully probe and characterize the deep structures that exist within both the technological artifacts and the work environments within which these artifacts are applied (within the context of a given technology-group decision support systems). Second, they describe and illustrate innovative strategies for collecting data on these structures. In doing so, the authors have laid an extremely strong foundation for future scholarship exploring the "evolution-in-use" as well as the organizational impacts of advanced information technologies.

Technical developments in electronic communication, computing, and decision support, coupled with new interest on the part of organizations to improve meeting effectiveness, are spurring research in the area of group decision support systems (GDSS). A GDSS combines communication, computing, and decision support technologies to facilitate formulation and solution of unstructured problems by a group of people. This paper presents a conceptual overview of GDSS based on an information-exchange perspective of decision making, Three levels of systems are described, representing varying degrees of intervention into the decision process. Research on GDSS is conceived as evolving over time from the study of simple "shell" systems, consisting of menus of features available for selection by a group, to consideration of sophisticated rule-based systems that enable a group to pursue highly structured and novel decision paths. A multi-dimensional taxonomy of systems is proposed as an organizing framework for research in the area. Three environmental contingencies are identified as critical to GDSS design: group size, member proximity, and the task confronting the group. Potential impacts of GDSS on group processes and outcomes are discussed, and important constructs in need of study are identified.group decision making, decision support

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We introduce this Special Issue by providing an overview of the interplay between communication technology and various dimensions of new organizational forms. We consider the major factors motivating dramatic change within and between organizations today, and describe key dimensions of intraorganizational and interorganizational forms that are linked to electronic communication technologies: vertical control, horizontal coordination, size of organization and constituent units, new types of coupling, core product, communication cultures, ownership and control, interorganizational coupling, strategic alliances, and interstitial linking. Our purpose is to sample the changes attendant upon advances in electronic communication and organizational forms, with the goal of energizing future research. Our overview uncovers possibilities for new avenues of study within the technology-organization relationship and reveals the important contributions made by the articles in this Special Issue.

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A cumulative body of experimental research is emerging that examines the ability of computer technology to support the processes and outcomes of small group meetings. For the most part the group decision support system effort has been concerned with demonstrating the usefulness of the technology in planning and decisionmaking situations where the quality of the meeting's outcomes can be objectively assessed. In many decision situations, however, there is no objective measure of decision quality available. Rather, the group must reconcile differences in opinion, personal preference, or judgment and achieve consensus about a particular mode of act/on. As a contribution to the accumulating research on GDSS, the current study examines the effects of a GDSS in resolving conflicts of personal preference. In a task requiring resolution of competing personal preferences, 82 groups-the largest sample size in the GDSS literature to date-were randomly assigned to one of three experiment conditions: (1) computer-based support system (GDSS); (2) a ual, paper and pencil, support system; or (3) support whatsoever. Groups were either of size 3 or 4 persons. Use of the GDSS was expected to facilitate democratic participation in group discussion, move group members toward agreement with one another, and result in a high level of satisfaction with the group decision process. While several of the intended effects of the technology were observed, the groups experienced some unintended consequences as a result of using the GDSS. In general, the GDSS technology appeared to offer some advantage over no support, but little advantage over the pencil and paper method of supporting group discussion,

Few topics have received more attention in the management literature of recent years than that of virtual organizations. Articles abound on the possibilities of virtual meetings, work teams, offices, factories, firms, and alliances. Given the burgeoning interest in this emerging phenomenon, it is surprising that very little empirical research exists on virtual organizations. Especially lacking are studies of communication processes within virtual organization settings. To help remedy this situation, this special issue provides an early window into several important communication processes that occur in virtual contexts. We are pleased to provide readers with a compendium of six articles that, collectively, advance current knowledge of communication processes for virtual organizations. Both single and multifirm studies are included here, with analyses covering such diverse topics as communication content, communication structure and effectiveness, tradeoffs in electronic and face-to-face relationships, and the use of communication in formation of organizational identity. All of the studies include rigorous analysis and careful measurement of communication, and all take place within naturally occurring organizational contexts, not laboratory settings.

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