Total quality management TQM, Information systems IS, elements of TQM, maintainability attributes of IS, Compatibility model, quality level. Total quality management "TQM" is an arranged system of quality, it deals with requirements of customers and uses strategy to integrate quality discipline with other activities, it strives to provide customers with required products and services in any organization. "TQM" has eight elements in order to enhance quality level and avoid defects in other systems such as information system "IS". Here, the "IS" is an organizational arrangement of information and depends on four maintainability attributes of how such system stores, processes, manages and makes information available for use by both software and hardware systems. Four maintainability attributes of "IS" can be inserted into eight elements of "TQM" and make integration between their tasks to develop a model of compatibility in an organization, because the compatibility is a state in which two functioning systems are able to unify their tasks such as "TQM" and "IS" in one integrated system, constituting a model of compatibility. Here, this model comprises of four compound elements and several procedures. Many studies affirmed that inserting quality system into other systems leads to better control and services by 86% and 73% respectively which return as advantages to our study here, and to improve "IS" outcomes as well. As a new topic, the compatibility is regarded as a new model to increase stability, repair, restoring, and quality level of "IS" outcomes. As a new tactic, the compatibility procedures are come by the way of integrating and inserting four main attributes of maintainability of "IS" into eight key elements of "TQM".