Most markets for computing are evolving towards distributed solutions. The system framework that accommodates distributed solutions most gracefully is likely to dominate in the 1990’s. A leadership distributed system includes the best of today’s centralized systems, combining their coherence and function with the better cost/performance, growth, scale, geographic extent, availability, and reliability possible in distributed systems. To build such a system requires a distributed systems architecture as the framework for a wide variety of products. The architecture specifies a set of standard services in a distributed system. Together these services make up an integrated system with global names, access, availability, security, and management, all working uniformly throughout the system.

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