Occassionally you may be required to speak with someone (personally or professionally) who is not a librarian. Be mindful that these people may not understand what ALA is. Nor may they know what ILS their own library uses, or even what an ILS is. They may not be familiar with a CMS or portals. Or MARC. Or LCSH. DDC. Or SLA. Metadata. ILL. SUDOC.
If you talk to non-librarians using these words, people will think you are a geek. And they will be right.