What is it?
Selective auditing is a means of allowing ASE Civil's vertical design management system to check each drawing element's properties for accuracy against the collective databases associated with each of the subsystems.
Why do we need this?
ASE's vertical design auditor runs to ensure that object data is accurately synchronized with its related design data. Sometimes, depending on a variety of external factors (design environments, sudden power loss, system configuration changes, user-habits, AutoCAD system variable settings, windows/AutoCAD/Civil 3D user-profile corruption, memory limitations, application interference/namespace conflicts, etc.) data errors may create intermittent communication problems between the drawing objects and their data that result in unexpected results or ASE subsystem failure.
Performing an ASE "Selective Audit" at the first sign of problems that indicate they may be related to ASE Civil functionality is a good step to take towards resolving design-related issues.