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IS architecture and types

Short answer

Information system architecture is a blueprint that structures data, applications, technology and people into layers like presentation, business logic and data. Types include TPS, OAS, KWS, MIS, DSS, ESS, expert systems, and enterprise systems such as ERP, CRM and SCM.

Explain Information System Architecture. List different types of Information System.

Information System Architecture

Information system architecture is the blueprint that describes how the components of an IS (data, applications, technology, network and people) are structured, how they relate and how they fit the business needs. It guides design, integration and growth of the system.

Main views:

  • Business architecture - processes, functions, organization units.
  • Data architecture - data models, databases, data flow.
  • Application architecture - software modules and their interfaces.
  • Technology architecture - hardware, network, platforms, security.
 Users / Presentation layer
          |
 Application / Business logic layer
          |
 Data layer (DBMS, warehouse)
          |
 Network + Hardware + Security

Common architecture styles: centralized (mainframe), client-server, two-tier / three-tier / n-tier, web-based, distributed, and service-oriented (SOA) or cloud.

Types of Information Systems

  1. Transaction Processing System (TPS)
  2. Office Automation System (OAS)
  3. Knowledge Work System (KWS)
  4. Management Information System (MIS)
  5. Decision Support System (DSS)
  6. Executive Support System (ESS)
  7. Expert System / Knowledge-based System
  8. Enterprise systems: ERP, CRM, SCM
  9. Geographic Information System (GIS)

✓ Answer checked by Claude Opus 5.5 (high effort)

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