What does simulation refer to in software and app design?

Simulation in software and app design refers to modeling behaviors and conditions of real-world situations. This is an essential aspect of various applications, particularly those used for training, education, engineering, or healthcare, where understanding how systems behave under various scenarios is crucial. By creating a simulated environment, developers can mimic real-world processes and conditions, allowing users to interact with those simulations to gain insights or practice skills without the risks or costs associated with real-life situations.

For instance, flight simulators are used for training pilots in a controlled environment, accurately reflecting flight dynamics and emergencies without actual danger. Similarly, simulation can be applied in business to model market scenarios or customer behaviors for better decision-making.

The other options represent important aspects of software and app design but do not capture the essence of simulation. Creating graphics for games focuses on visual design rather than replicating real-world dynamics. Adding animations to a website is a technique for enhancing user engagement but doesn't involve simulating real-world situations. Building databases is crucial for data management and storage, but like the previous options, it does not pertain to simulating underlying behaviors or conditions.