In MAPDL, all model information including geometry, mesh, material properties, and other inputs are stored in a database. It's designed such that one can access a subset of this data without altering other data. A common yet powerful application of APDL scripting is to create parametric models, allowing engineers to gain insight into the design. Selection logic allows you to develop such models while working with different entities. In this video, let’s learn selection logic using APDL scripting in Ansys Mechanical APDL.