A graph that reflects the relationships between the various components of a set or system is called a diagram.
The first step that we are going to make known is the etymological origin of the term diagram that concerns us now. In this case, we can state that it is a word that derives from Greek since it is made up of several components of said language:
-The prefix «dia-«, which means «through».
-The verb «graphein», which is synonymous with «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 presents the links between the different components of a system or assembly . It may 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 , in turn derived from the Greek language , as we already indicated. Depending on their characteristics, it is possible to differentiate between different types of diagrams.
A flowchart is the representation of a process or an algorithm. Many times it shows a sequence of steps to follow, with arrows that link the different stages. A block diagram , for its part, uses blocks to represent the internal workings of some kind of organization or system .
John Venn devised one of the best-known mathematical diagrams.
Mathematical diagrams
Mathematical diagrams , for their part, 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, through closed lines, sets of elements.
In the same way, we cannot forget the Bode diagram, which is the graphic representation whose mission is to show or characterize what the frequency response of a specific system is. Its name comes from the scientist who created it, the American Hendrik Wade Bode.
Another diagram is the Pareto diagram , a drawing that makes it possible to order data descendingly, from left to right. This diagram is used to graph the Pareto principle , postulated by the Italian Vilfredo Pareto .
A Spanish foundation
Nor can we overlook the existence of the Diagrama Foundation, which is based in Murcia (Spain) and is part of the psychosocial intervention sector. It is not for profit, it was launched in the 1990s and its objective is none other than to be able to serve people in social difficulties or who are vulnerable in the interest of always defending Human Rights.
Precisely for all this, this foundation has several areas where they carry out actions and projects of various kinds. Among those are the socio-health area, cooperation for development, socio-educational area, socio-labor insertion, communication and awareness...