2-1 Information Technologies Concepts and Management
2-2 Information Systems: Concepts and Definitions Data Information Knowledge
2-3 Classification of Information Systems Organizational structure Functional area Support provided System architecture
2-4 Organizational Structure Department information systems Enterprise information systems Interorganizational systems
2-5 Functional Area Information System Accounting Finance Manufacturing Marketing Human resources
2-6 Support Provided Transaction Processing System (TPS) Management Information System (MIS) Office Automation System (OAS) Decision Support System (DSS) Executive Information System (EIS) Group Support System (GSS) Intelligent Support System
2-7 System Architecture Information Architecture and Information Infrastructure Mainframe Standalone PC Networked computing system
2-8 Transactional Processing: Supports the monitoring, collection, storage, processing, and dissemination of the organization’s basic business transactions. Functional Management Information Systems: Systems designed to support the activities of a functional area. These systems range from the repetitive to ad hoc.
2-9 Operational, Managerial and Strategic Systems Classification by the activity supported Relationship between people and IS
2-10 Classification by the Activity Supported Operational systems Managerial systems Strategic systems
2-11 Relationship Between People and Information Systems Knowledge workers –Create information and knowledge Data workers –Use, manipulate, or disseminate information
2-12 Information Infrastructure and Information Architecture Infrastructure Architecture New architectures
2-13 Information Infrastructure and Architecture Information Infrastructure: consists of the physical facilities, services, and management that support all computing resources in an organization. Information Architecture: is a high-level map or plan of the information requirements of the organization in an organization.
2-14 Information Architecture Information architecture model Types of information architecture
2-15 Information Architecture Model Information Architecture: a conceptual framework for the organizational IT infrastructure. It is a plan for the structure and integration of the information resources in the organization.
2-16 Information Architecture Types Mainframe environment PC environment Networked (distributed) environment –Enterprisewide system
2-17 New Architectures Client/server Enterprisewide computing Intranets Internet Extranets
2-18 Managing Information Resources Which resources are managed by whom? What is the role of the Information Systems Department (ISD)? Managing relationships with end users Managerial issues
2-19 Which Resources Are Managed by Whom? Hardware Software Databases Networks Procedures Security
2-21 Managing Relationships with End Users Steering committee Joint ISD/end users project teams ISD representation on top corporate executive committee Service agreements Technical and administrative support Conflict resolution unit
2-22 Managerial Issues Transition to networked computing From legacy systems to client/server systems How much infrastructure? The role of ISD
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