Dynamic Hypermedia Device, the interactive mode.

The object in this paper’s is analysis over concepts and methodologies between Rural Sociology and Rural Extension.
The first moment the Rural Sociology directed to the concepts for application for the development trough the Rural Extension. So the Rural Extension is can see as groups of tools.
In the second moment is begin the systematic the actions trough Rural Extension characterized for the interactions what have consider the typologies of producers for the system innovation in technology for the incorporation for producers part.
In the third moment the productions of knowledge trough the participatory of producers was consider as the points of critical in theories and methodologies of the knowledge in the Rural Extension.
So is very important analyzed the different moments in the actual contexts over science and who what was consider in science.
The Rural Sociology is essential for the work of science and for the Rural Extension when is social relations in the productions and in the science.
Finally are points over the knowledge what accept into the science for the change when economics interest involve different social actors.