Hassairi Ahmed Foued
The objective of this research is to identify factors explaining the possible differences in the level of use of Electronic messaging in Tunisian companies. The proposals of this research are based on the theory of the richness of the media, the model of Triandis, and the Technologies Acceptance Model. The theoretical framework reviewed is based on four conceptual levels that make up the model for this research, organizational prerequisites, individual prerequisites, perceptual prerequisites, and email use behavior. The model of this research is part of an explanatory approach with a hypothetical-deductive type of approach supported by a questionnaire to which one hundred one user managers responded. The obtained results make it possible to supplement the theoretical contributions of research and to put forward the preconditions allowing predicting the use of electronic messaging. The results show that the use of electronic messaging is still the expression of an individual will that is difficult to influence. In this sense, the use of e-mail is voluntary insofar as the individual experience and perceptions of usefulness in terms of "added value in the workplace", and perceptions of ease of use in terms of "ease of connection" of users are the most determining factors in the user of this means of communication.