Converting From Mainframe to Client/Server at Telogy Inc.
Doris G. Duncan, Sateesh B. Lele · Journal of Software Maintenance Research and Practice · 1996
This paper summarizes many cost-benefit issues addressed by Telogy Inc. in its decision to replace its legacy mainframe computer system with a Client/Server system as a major component of re-engineering the entire organization. Lessons learned are intended to benefit decision makers in assessing the feasibility of migrating their current operations to a Client/Server environment. This paper summarizes what Telogy Inc. experienced during and after conversion of its centralized mainframe computer system to a distributed, Client/Server environment. Issues addressed include reasons for the migration, comparison of mainframe and Client/Server systems, outsourcing, cost-benefit considerations, productivity impact, roles of vendors and users, training, responsibility for data synchronization, and software maintenance. Lessons learned address: (1) overcoming resistance to change, (2) managing user data during conversion, (3) involving users in the migration, and (4) linking migration success with management and employee performance appraisal and compensation.