4. A Networked Information System: Three-Tier Architecture Corporate Headquarters Finance Production Marketing and Sales Corporate Databases Mainframe Divisional Databases Divisional Minicomputers with Divisional Databases Local Area Network: PCs with Local Databases Salesforce Notebooks Regional Office Work- stations Plant Minicomputers Telecommunications Link
5. A Downsized Networked Information System: Client/Server Architecture LAN LAN WAN Client PCs Workgroup Server Database Server Client PCs Enterprise Computer (Central Server)
13. The Structure of Decision Support Systems Model Management Data Management Dialog Management Decision Support System Internal and External Databases User ...
16. The Structure of Expert Systems Explanation Facility Inference Engine User Interface Expert System Knowledge Base User Facts of the Case Recommendation, Explanation
18. A Summary of the Informational Support of Management Greater Importance of External Information More Summarized Information Longer Time Horizon Less Structured Problems Strategic Management Tactical Management Operations Management Human Resources Production Finance Marketing Business Functions EIS DSS MRS