Maintenance decision support and knowledge discovery form an important part of the decision support system of the organization to create additional value. Relevant information through knowledge discovery – as a part of the decision support system – is required by the decision makers to facilitate maintenance decision support.
The role Simplified Technical English, STE, plays in aviation maintenance has been investigated and discussed in this article. A brief history of the development of the ASDSTE100 Specification  within the aviation industry, together with its range of application, an overview of its principles, structure and rules are presented. The primary objective of STE is the removal of linguistic barriers in a continuous attempt for the correct understanding of the instructions by the operators, the improvement of flight safety and reliability.