A major feature of ASCE is the ability to load additional notations - known as ASCE Schemas. These schemas allow ASCE to be used in a very wide range of business contexts where there is a benefit in explicitly structuring information into meaningful chunks according to a particular notation.
ASCE comes with inbuilt schemas and can be extended by the use of additional schemas which are loaded into the users' schemas folder (link available via ASCE's start menu entry).
Note that ASCE 3.5 is now superceded by ASCE 4.0/4.1