A simplified representation of a concept, system, or processA series of steps or actions taken to achieve a particular outcome, often repeatable and structured. A process is like a recipe, guiding each step to create a consistent result., often used to testAn opportunity to practice or challenge a knowledge set. We use quiz, test, exam interchangeably. or demonstrate how something works. A model is like a blueprint, providing a scaled-down version that reveals key structures and relationships.