The objective of the thesis is to design and to implement an interactive system that carries out chorems. Chorems are schematic representations of a place with special characteristics. That is to say, they are a visual representation of various types of geographic knowledge.

The work of my thesis is to identify the methodologies of Spatial Data Mining able to extract chorems in order to be able to implement a system that discovers them interactively along with the user. That is to say, the goal is to detect the functions or algorithms of data mining able to carry out patterns useful and significant to be represented in form of chorems and to present them to the user in a visual form. By doing this, chorems will represent geographic knowledge that can be visualized, wich is useful for problem solving.

A chorematic map is the result of the combination of a set of chorems related to each other, that is to say, that they have in common the same thematic, the same type of geographic knowledge. Therefore, we have studied various chorematic maps to make and to define a list of necessities, from which a complete chorematic map would be obtained in the end.