Object-oriented analysis and design is an object-centered, data-sensitive technique used to model business requirements in terms of objects and entities using entity relationship diagrams to prototype an information system.

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Object-oriented analysis and design (OOAD) focuses on modeling systems using objects and classes, not entity relationship diagrams, which are used in relational database design. OOAD uses UML diagrams like class diagrams to represent the system.

Object-Oriented Analysis and Design Is an Object-Centered, Data-Sensitive Technique Used