Process Modeling or Data Flow Diagram (DFD)
Graphical representation of the function and process, which capture, manipulate, store and distribute data between components within a system.
The components of a Data Flow Diagram(DFD) are:
- Entities or Source or Sink of Data: Include the source and destination of the data.
- Process: The tasks performed on the data are known as processes.
- Data Storage: Data storage includes the database of the system.
- Data Flow: The movement of data in the system is known as data flow.
here are the notations for the components:
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