Having at least some basis in reality

Based upon the concept of an object / (computing) encapsulating states and operations inside objects

Alternative form of textbased

Alternative form of waterbased

(programming) Synonym of event-driven

(video games) Of a game wherein a player character automatically moves along a preset path.

(programming) making inheritance possible by cloning objects instead of instantiating them from classes

(programming) Structured by defining classes of objects. / (Marxism) Based on social class. / Learning delivered in a class either online or in a classroom.

(space science) based on space or space technology

(computing, databases) based on a special given role to access a content; used usually in cloud computing, databases, or other complex systems.