Class inclusion and degree of specificity manifest themselves in three levels of categorization – namely the superordinate level, the basic level and the subordinate level.

Concepts are general ideas you use to organize your experience and, in doing so, bring order and intelligibility to your life. A road map is a visual presentation of the ways in which concepts can be related to one another.

According to Wiktionary, a concept is an abstract and general idea, an abstraction. It is an understanding retained in the mind, from experience, reasoning and/or imagination. As you see, a concept is rather conceptual defined and it is very difficult to put it in practical use.

General concepts refer to the basic outline of the investigation or study. Generally they relate to the requirement for the complete analysis of the problem. They differ according to the field of study. Those collected concepts or data are made in to a manual for the case.

First, write a concept outline.

1. That means you have the right idea for the insight, the right idea for the benefit, and the right ideas for the RTBs.
2. Write them all down in outline form.
3. Check to see if it all hangs together and creates a logical story.
4. Have others read it over to see if they agree it’s basically right.

The concept of time is self-evident. An hour consists of a certain number of minutes, a day of hours and a year of days. But we rarely think about the fundamental nature of time, says one expert. The concept of time is self-evident.

Innocence is one of the greatest illusion. Free will is another great illusion of life. Human behavior is determined by nurture and nature.

Illusion, a misrepresentation of a “real” sensory stimulus—that is, an interpretation that contradicts objective “reality” as defined by general agreement. An illusion is distinguished from a hallucination, an experience that seems to originate without an external source of stimulation.

There are three main types of optical illusions including literal illusions, physiological illusions and cognitive illusions. All three types of illusions have one common thread.

They can occur for many reasons, such as the effect of light on an object, insufficient sensory information about an object, or errors in an individual’s processing of sensory details. The refraction of light can cause rainbows and mirages, two illusions that are dependent on the atmosphere.

Although illusions distort our perception of reality, they are generally shared by most people. The term illusion refers to a specific form of sensory distortion. Unlike a hallucination, which is a distortion in the absence of a stimulus, an illusion describes a misinterpretation of a true sensation.

Optical illusions are cleverly designed to distort reality, but did you know that the same distortions occur frequently in everyday life? Our ability to see involves the brain moulding raw sensory data into a refined form. Some of the refinements are deliberate – they’re designed to help us survive.

Optical Illusions can use color, light and patterns to create images that can be deceptive or misleading to our brains. The information gathered by the eye is processed by the brain, creating a perception that in reality, does not match the true image.