COMM 205 Lecture Notes - Lecture 7: Project Management, Data Security, Decision Support System
Document Summary
Differences between information systems (is) and information technology (it), technologies are tools. Is is the colloection of tools, the people who use it, and the process it supports. Lecture 2: chains: business process hierarchy, value chain, business process, process, activity. Sub-sub-process: alternative business process must be efficient (deliver intended results) and effective (consume least resources for intended results, business process management: Transaction processing systems: a transaction is any business event that generates data, tps is a system that supports the monitoring, collection, storage and processing of data, major features, performance: response time. 99. 99%:4 minutes: availability: percentage of active time, data integrity, modular growth. Information systems hierarchy: expert system (es, executive information system (eis, decision support system (dss, management information system (mis, transaction processing system (tps, problem for traditional is, no integration. Enterprise resource planning (erp): data sharing, joint execution and consolidation, heart is database, challenges of implementing erp, vendor selection, gap analysis, customization, data definition and ownership issues, change management.
