This discussion is expected to provoke issues of concern to group support systems (GSS) researchers including problems in extrapolating the resuk from the one-time performance of ad hoc groups using groupware in a laboratory to those of ongoing teams iii organizations; awareness of how group support technologies can be used to develop groups quickly into high perlonning te;uns;and understanding the role of facilitation and training in the use of group support technologies. Whichever model of development one chooses to accept, researchers must recognize that one shot studies of groups cannot comparetothclongitudinalexaminationsofongoingteams. GSSstudiesthatexplicitlyincorporatethetimedimensioninto their rcsearch design can provide valuable insights to the nature and causes of change in groups.