Prototyping serves to provide specifications for a real, working system rather than a theoretical one. In some workflow models, creating a prototype (a process sometimes called materialization) is the step between the formalization and the evaluation of an idea. A User Experience Prototype captures enough aspects of the intended design that it can support user research. 2  A Visual Prototype captures the size and appearance, but not the functionality, of the intended design.
In the mid-1930s, the last main improvement to the leather football helmet was introduced: The facemask. Vern McMillan, who owned a sporting goods store in Terre Haute, Indiana, was credited with inventing the first facemask design.
So there is no sure-fire answer to the question what country invented football. The first modern documented evidence of soccer rules can be found in the rules laid down at England's Trinity College at Cambridge in 1848. The rules were known as the 'Cambridge Rules' back in the day. Hence in that sense it is pertinent to state that football was invented by the representatives of various universities across the UK, namely Eton, Harrow, Rugby, Shrewsbury, and Winchester. The first formal association to govern soccer was also born in England, in 1863.