What Is an Object? Informally,an object represents an entity, either physical,conceptual,or software. Physical entity Truck Conceptual entity Chemical Process Software entity Linked List Object Oriented Analysis and Design 10Object Oriented Analysis and Design 10 Truck Chemical Process Linked List What Is an Object?  Informally, an object represents an entity, either physical, conceptual, or software. ▪ Physical entity ▪ Conceptual entity ▪ Software entity