The Scopus system assigns Author Identifiers to each author as a means of differentiating between authors, especially authors with similar names, and grouping publications by a single author together. It can be used to search the Scopus database if your institution subscribes (if an Author Identifier is known, the database can be searched by entering an author's identifier).
There are advantages to the Scopus Author Identifier and Profile system:
There may be disadvantages to Scopus Author Identifiers & Profiles: