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Distributed Systems: The Overall Architecture. Chapter 5 Information Systems Management In Practice 6E McNurlin & Sprague. Introduction. Architecture vs. Infrastructure. Attributes of Distributed Systems. Processing is distributed Processors are interconnected Databases are distributed
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Distributed Systems: The Overall Architecture Chapter 5 Information Systems Management In Practice 6E McNurlin & Sprague
Introduction Architecture vs. Infrastructure
Attributes of Distributed Systems • Processing is distributed • Processors are interconnected • Databases are distributed • System-wide rules provide the operating discipline for the components to work together
When to Distribute • Operations are interdependent • Businesses are homogenous • Corporate culture dictates centralization of some functions
Seven Types of Distributed Systems • Host-Based Hierarchy
Seven Types of Distributed Systems • Decentralized Stand-Alone Systems
Seven Types of Distributed Systems • Peer-to-Peer LAN-Based Systems
Seven Types of Distributed Systems • Hybrid Enterprise- wide Systems • CASE EXAMPLE: Northwest Airlines
Seven Types of Distributed Systems • Client-Server Systems
Seven Types of Distributed Systems • Internet-Based Systems
Seven Types of Distributed Systems • Internet-Based Systems • Server-Based Computing • CASE EXAMPLE: 3i • Peer-to-Peer Computing
Seven Types of Distributed Systems • Web Services
Seven Types of Distributed Systems • Web Services • The Significance of Web Services • CASE EXAMPLE: GM
Defining the Overall IT Architecture • The Job of the Chief Technology Officer • CASE EXAMPLE: FMC Corporation • CASE EXAMPLE: The SABRE System
Importance of IT Infrastructure Three Views of Infrastructure: • As a utility • As dependent • As enabling • CASE EXAMPLE: City of Sunnyvale
Conclusion Distributed Systems’ Domination