Different Kinds of Information Systems
Management Information System (MIS)
It helps the organization produce information that can aid in improving decision-making, problem-solving, controlling operations, and creating new products or services.Generates semi-structured, ad-hoc reports tailored for strategic management. Examples: Marketing information systems.
Transaction Processing System (TPS)
TPS processes data from business operations, providing essential support for day-to-day operations. Handles routine transactions, employs fixed periodic reporting, and serves operational management needs. Examples: Sales processing systems, and online reservation systems.
Decision Support System (DSS)
DSS utilizes analytical models, specialized databases, and internal data to provide interactive decision support. Offers reports like sensitivity and what-if analyses, catering to individual manager’s decision-making needs. Example: Geographic Information System (e.g., IBM’s Geo-Manager).
Expert System
Expert Systems apply knowledge from a specific field, delivering expert advice within a defined domain. Provides human-like expert advice; sought by managers seeking specialized knowledge. Example: Medical diagnostic expert systems (e.g., MYCIN).
If you are a beginner and want to learn about system design then you can refer to System Design Tutorial.
System Analysis and Design Interview Topics for Freshers
System Analysis is the “what” before the “how” in system design. It provides the essential roadmap for crafting a system that is both effective and efficient in solving the intended problem. “Imagine you’re building a dream house. You wouldn’t start hammering nails without a detailed blueprint, right?”The same goes for software development.”
System analysis is the blueprint, while system design translates it into the actual system.
Important Topics for System Analysis and Design Guide
- Information System(IS)
- Characteristics(Properties) of a System Analysis
- Classification of System Analysis
- Distributed Systems
- System Analysis and Design
- System Analyst
- System Development Life Cycle(SDLC)
- Documentation of Systems
- System Requirements Specification(SRS)
- Fact Finding Techniques or Information Gathering Techniques
- Modular and Structured Design
- Form Design
- Report Design
- Process Modeling or Data Flow Diagram (DFD)
- CASE Tools – Computer-Aided Software Engineering Tools
- Implementation of Systems
- Maintenance of Systems
- Audit of Computer Systems
- Viruses
- Concurrent Audit
- Different Kinds of Information Systems