A diagram is a graph that reflects the relationships between the various components of a set or system.
The first step we are going to make known is the etymological origin of the term diagram that we are now dealing with. In this case, we can state that it is a word that derives from Greek since it is formed by several components of that language:
-The prefix “dia-”, which means “through”.
-The verb “graphein”, which is synonymous with “to write”.
-The suffix “-ma”, which is used to indicate “result of the action”.
Starting from this origin we can establish, therefore, that diagram literally means “sketch”.
Diagram concept
A diagram is a graphic that shows the links between the different components of a system or a set . It can be a drawing dedicated to the representation of something, to the resolution of a problem or to the demonstration of a proposition.
For example: “In this diagram you can see how we plan to develop the product distribution chain” , “I already showed the diagram to my boss, he was satisfied and asked me to move forward with the project” , “The government presented a new diagram of activities in the city squares” .
Classification according to type
The word diagram comes directly from the late Latin term diagramma , which in turn is derived from the Greek language , as we have already indicated. Depending on their characteristics, it is possible to differentiate between different types of diagrams.
A flowchart is a representation of a process or algorithm. It often shows a sequence of steps to follow, with arrows linking the different stages. A block diagram , on the other hand, uses blocks to represent the internal functioning of some kind of organization or system .
John Venn devised one of the best-known mathematical diagrams.
Mathematical diagrams
Mathematical diagrams , on the other hand, are graphics that allow mathematical relationships to be specified. One of the best known is the Venn diagram , created by the Englishman John Venn at the end of the 19th century to show, using closed lines, sets of elements.
Likewise, we cannot forget the Bode diagram, which is a graphic representation that aims to show or characterize the frequency response of a specific system. Its name comes from the scientist who created it, the American Hendrik Wade Bode.
Another diagram is the Pareto chart , a drawing that allows data to be ordered in descending order, from left to right. This diagram is used to graph the Pareto principle , postulated by the Italian Vilfredo Pareto .
A Spanish foundation
We cannot overlook the existence of the Diagrama Foundation, which is based in Murcia (Spain) and is part of the psychosocial intervention sector. It is a non-profit organization, it was launched in the 1990s and its objective is none other than to be able to care for people in social difficulty or who are vulnerable in the interest of defending Human Rights.
Precisely for all this, the foundation has several areas where they carry out actions and projects of various kinds. These include the social health area, cooperation for development, socio-educational area, social and labour integration, communication and awareness raising...