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Object-oriented analysis and design (OOAD) is a software engineering approach that models a system as a group of interacting objects. There are a number of different notations for representing these models, such as the Unified Modeling Language (UML).
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.