Check	Definition	Responsible Party	Software Used	Frequency
Visual	Ensure there are no unintended model components and the design intent has been followed.
Clash	Detect problems in the model where two building components are clashing (including soft and hard clashes).
Standards	Ensure that the BIM and AEC CADD Standard have been followed (fonts, dimensions, line styles, levels/layers, etc.).
Integrity	Describe the QC validation process used to ensure that the Project Facility Data set has no undefined, incorrectly defined, or duplicated elements.