Experimentation is a very simple concept which means observing the world around us, getting some information from that piece of the world, and then interpreting it. Everything else falls in the reporting, and usability of that information, which itself can create its own world. Two of the most important concepts in experimentation are observation and concept. Observation can itself come from two different sources, and concepts that form around those observations can be beneficial or they can be brutally dangerous. Normally these two different sources are the actual system under study and the model of that system. There is a certain distinction between the two. Normally what happens that the system becomes a pure entry which gives us infallible information, but its the person who can make a model which can impure the judgments that we might get from the model of that system.
In the book Experimentation by D.C. Baird, we see a detailed analysis of this. Baird mentions a simple example of this when he says