(a) An assumed name is a name, other than its real name or fictitious name, under which an organization conducts business in this State. An assumed name is commonly referred to as a d/b/a.

The certificates that may be filed concerning assumed names shall be the Certificate of Assumed Name, which shall pertain to the initial adoption of such a name; Certificate of Amendment of Assumed Name, which shall pertain to changes in the information contained in the original certificate filed; and Certificate of Discontinuance of Assumed Name, which shall pertain to the termination of the use of the assumed name.