Designations in the field of Library and Physical Science

What are the various designations in the field of Library and Physical Science?

The various levels in this field are:
- Library Attendant
- Library Assistant
- Junior Librarian/Semi-Professional Assistant
- Junior Librarian/Professional Assistant
- Junior Librarian/Assistant Librarian
- Deputy Librarian
- Librarian
- Director/Head Of Information Centre
- Senior Information Analyst
- Junior Information Analyst
- Information Assistant