Context. The subject presented in this research is the fact that people resist IT induced change and want to maintain their current situation when implementing a new information system.  If no strategy is set to deal with it, resistance to change leads to Information System failure.

Objectives. In this study, the author is investigating how to anticipate and handle resistance to change when implementing a new information system in order to succeed. This is followed by introducing the factors affecting user satisfaction which in turn affects user acceptance.

Methods The data collection involves interviews in order to assemble appropriate, justifiable and relevant data, in addition to surveys to measure and validate the hypotheses in this thesis. The banking sector in Lebanon was selected as a source of data collection.

Results. Three factors Perceived ease of use(PEOU), Perceived Usefulness (PU), and User Involvement react together to satisfy user and hence to make the user accept change.

Conclusions. Based on the studies conducted so far with respect to this topic, there exists an indirect relationship between the three factors discussed in this thesis, the user satisfaction, and the user acceptance. The more the user finds the system easy to use (simple way of work with less efforts) and useful (the extent to which person’s work is improved) and the more he/sh  is involved, the more he is satisfied and hence the more he is willing to accept the change and causes system success.