Our goal today is to understand the difference between the two types of modeling. We take an airplane as a model. Let’s consider its technical model. It could be a DIY plane. This is made from scrap materials: wood, paper, plastic. It is often much smaller than the real one and will not necessarily fly (the motor and engine are not provided in most cases, and the size, weight and material are not suitable for flying). The purpose of the model is to convey shape and color. Usually used as a toy or decoration.
There are radio-controlled aircraft, that is, models that reproduce the ability to fly. Such control occurs at a distance, within the visibility of the controller, although the range of the equipment greatly exceeds this distance, so there are control methods using binoculars. Such aircraft are used for entertainment purposes, aerial photography and broadcasting, as well as for military training. Dimensions (from two cubic centimeters to several meters) and weight (from tens of grams to hundreds of kilograms) depend on this.
The model can be informational. This is the description and characteristics of the aircraft (name, company and country of manufacture, aircraft length, wingspan, colors, number of seats, purpose, speed, takeoff run, engine, empty weight, and much more). The information model is also a drawing. A drawing is a document containing a contour image of a product and its data necessary for the manufacture, control and identification of a product, as well as for operations with the drawing itself. This is a graphical model of an airplane. An information model of a technical model can be made (but not vice versa). If the model is small, then the drawing shows it in full size. But real planes, reaching lengths of several tens of meters, are depicted on a scaled down. Sometimes thickness and type are conveyed with special lines, and in captions – some characteristics. A drawing is an accurate information model. But children’s drawing can also be called an information model, which does not convey exact characteristics, but an approximate shape and color.
So, the full-scale (technical) model of the aircraft is its physical similarity, and the informational model is its description. A drawing (or a drawing) allows you to see the parameters that are essential for consideration, but which do not have material embodiment, like a technical model. The latter has the advantage of being able to touch it, or even sit down and fly.