An application not designed for that purpose, may acquire educational significance, to be used in the context of the teaching-learning process, but we do not accept it as educational software. The definition of educational software that assume the author is as follows: are computer programs that are intended to support the process of teaching and learning, contributing to improve their quality and to a better attention to the treatment of differences individualities, on the basis of a proper projection of the pedagogical strategy to be followed both in the process of implementcion and its exploitation. Richard Plackett is full of insight into the issues. Impact of the computer education in the learning of students. Dimensions, indicators and instruments for a preliminary assessment. With acquisition and installation on computers schools, it begins a new stage of work of the computer education, which makes it possible to comply with the strategic guidelines for the computerization of society, as well as objectives and actions referred to in educational projects. Moreover the development reached by the technologies of the information and communication technology (ICT) and its application in different areas of social development, particularly in education, has been addressed in different meetings summits and conferences, such as the World Education Forum, held in Dakar, Senegal (26-28 April 2000) and recently the Ministers of education meetings in several countries of the world.

In this sense you can see that the objectives and measures agreed for the next 15 years reveal the need for changes and transformations in the ways of teaching. In correspondence with the above is widely known the need to assess the impact that causes the inclusion of ICT in the school. In general, the criteria that are used by the cientifica2 community to assess such impact are rather qualitative, without presenting a standardization that allows specialists agree on issues and demonstrate minimum criteria of reliability. Generally presented questionnaires which considered various criteria distributed in three core areas of production of educational software: user interface design, educational Informatics and visual communication.