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UML example

UML or Unified modelling language is the best tool for modelling object oriented systems. As we know, in objet oriented modelling and design, we identify objects (entities)within the system and analyze how they interact with each other and thus design an interactive model preserving their individual properties, behavior as well as publicizing their public attributes…

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ERD examples

ERD or Entity relationship diagram is the most common database design and modelling tool used in System Design phase. The diagram basically represents all data entities of the targeted system, their attributes and relationships. Database modeller represents ERD in various levels of details such as Context Data Model, Key based model and Fully attributed model….

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DFDs example

Data Flow Diagram is the widely used system design tool which aids in depicting flow of logic and data (commonly called process flow) within the targeted system, in various levels of detail. Level 0 DFD is usually called ‘Context Diagram’ and it gives the highest level view. Starting from the black box in Context Diagram,…