Introduction UML (Unified Modeling Language) is a standard notation for modeling software systems. Definition UML stands for Unified Modeling Language, which is a standard visual modeling language used in software engineering to describe, design, and document software systems. Characteristics UML provides a set of graphical notations to represent different aspects Read more…
Introduction DFD is one of the most important system tools used for a system to develop it. Definition A data flow diagram (DFD) is a visual/graphical representation of how data flows within a system or process or organization. Characteristics It is a visual tool that can help us to understand, Read more…
Introduction An entity is a real-world object or concept that has data associated with it, such as a person, place, or thing. Entities are objects or concepts that have properties, and relationships are the associations between entities. An ER diagram provides a visual representation of a database schema, making it Read more…