The use of technological tools in companies can creates a change in the goals expected. This work deals with how these tools are used in order to predict the technological performances of companies.To reach this objective, we have combined, firstly, a quality method which, through interviews of 13 companies' executives of Cameroonian financial sector, made it easy for us to work out a set of questions understandable by everyone. Secondly, a complementary quantity method in which 365 financial agents of Cameroon working in Douala and Yaoundé answered different questions related with the mastering of technological tools.The results obtained respect the main objective of this research work, but , however, imply that social, economic and cultural parameters are taken into account in questions on the mastering of technological tools. Contrary to what suggested in the list of documents consulted, in the Cameroonian financial sector, technological tools are used only to reach the goals fixed by the hierarchy in advance. Non expected results are due to rough and low use of tools in companies, as well as to average training level of users. Which clearly means that technological tools are not mastered in that sector.On the whole, only one aspect of performance is noted in the use of technological tools by Cameroonian financial agents, depending on the environment: speedy execution. This performance is determined by two appropriation methods, one of which tends at innovating in order to solve unpredicted problems that appear in everyday work, the other naturally acquired through experience from everyday use of tools. This research work calls on managers' attention to integrate sociological factors of organizations so as to favor their technological performance.
