Process Modeling and Data Flow Diagrams

These flashcards cover key vocabulary and concepts related to Process Modeling and Data Flow Diagrams, assisting in the review of the topic.

Logical Model

A representation that shows what a system ‘is’ or ‘does’, independent of technical implementation.

Physical Model

A representation that includes how a system is physically implemented and is dependent on technology choices.

Data Flow Diagram (DFD)

A tool that depicts the flow of data through a system and the processing performed by that system.

Data Flow

Data in motion, representing input to or output from a process.

External Agent

An entity that lies outside the scope of the project but interacts with the system, providing inputs and receiving outputs.

Data Store

An inventory of data, representing all instances of a single entity in a data model.

Event-Driven Process Modeling

A strategy that involves modeling processes based on events that trigger actions within a system.

Classical Process Model

A model that organizes and documents the structure and flow of data through a system’s processes.

Context Diagram

A high-level diagram that shows the system's interaction with external entities and the flow of information.

System Diagram (Level 0)

A diagram that delineates the major processes within a system and their data flows.