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The Technical Details of Writing a Program
Prototyping
To make sure that they don’t spend months (or years) writing a program that doesn’t work right or that solves the wrong problem, programmers often prototype their programs first. Just as architects often build cardboard or plastic models of skyscrapers before a construction crew starts welding I-beams together, programmers create mock-ups (prototypes) of their programs first.
A prototype usually shows the user interface of the program, such as windows, pull-down menus, and dialog boxes. The prototype may look like an actual program, but clicking menus doesn’t do anything. The whole idea of the prototype is to show what the program looks like and how it acts, without taking the time to write commands to make the program actually work.
