The document provides an overview of ANSYS' Engineering Data Manager tool for defining, storing, and organizing material property data. It demonstrates how to enter material properties for different parts of a fan and case thermal-structural analysis model. The Engineering Data Manager allows adding materials from libraries, modifying existing materials, importing properties from CAD systems, and organizing materials into custom libraries for reuse across projects. Properties like temperature-dependent aluminum and steel specifications can be applied to different model components from the data tables and libraries within the Engineering Data Manager interface.