While traversing the System Life Cycle, engineers produce thousands of engineering items; most of them are abstract work products (requirements, models, architectures, test cases, manuals, risks, etc.), defined to achieve a system and its composed elements. RAT – AUTHORING Tool is the ideal way to help engineers create different types of artifacts. It helps authors during the demanding process of composing requirement statements or other documentation, hence improving the overall quality of the projects. RAT – AUTHORING Tool is the perfect assistant for system analysts/ engineers when writing the system documentation or creating models. RAT leads engineers with a set of agreed-upon patterns, suggests the most suitable content for each piece of written information, and always ensures the use of correct syntax. RAT also provides real-time quality checking of the items that are being created. Therefore, RAT frees engineers from format concerns (e.g., structure of requirements) allowing them to focus on the engineering decisions: that is, engineers and RAT tool team up to improve the overall quality of your projects.