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e\L-lovely-eng\comm12-1.pmd IInd 16-9-11 IIIrd 27-12-11 IVth 4-1-12

Unit 12: Online Information Services

Generally speaking, most libraries offer a feature online to request that title, and it can be transferred
to your local library for you to check out. Such features create a powerful way to enhance your Notes
typical library experience. This is quite an advance from previous years, when looking up titles
involved locating the appropriate area and seeing if the book is on the shelf.
This creates a special advantage to those that are in any level of school. Students of all levels can
now easily pinpoint titles that are needed for research. References are now much easier to locate in
one’s local library, and relevant titles can be easily transferred for the ease of the student. All of the
public can realize the capabilities that are involved in online library services. They can be a great
tool for those looking to conduct research or simply find titles to engage interests. Contact your
local library or find their website to begin seeing these benefits to online library services.
For a library serving a self-financed higher education institution, such as the College of Professional
and Continuing Education (CPCE) Libraries, there have to be tangible needs to justify the provision
of new initiatives. The prevailing of electronic resources makes the library collection have more
electronic materials than physical items. With students’ persistent demand for more electronic
books, electronic materials will continue to increase.
All in all, online information services become increasingly important that drives the CPCE Libraries
to look into how well its online information services are in meeting the needs of the users and how
the services can be improved. Primarily, online information services are provided through the
library website which is highly regarded as the services delivery platform and the surrogate librarian-
instructor.
Many studies have been done on how the information architecture of the webpage affected
information searching. Morville and Rosenfeld defined information architecture as:
• The structural design of shared information environments,
• The combination of organization, labeling, search, and navigation systems within websites
and intranets,
• The art and science of shaping information products and experiences to support usability and
findability
• An emerging discipline and community of practice focused on bringing principles of design
and architecture to the digital landscape.

There are Four Components of the Information Architecture:
The organization systems that govern how the information is categorized, the labeling systems that
determine how the information is represented, the navigation systems that facilitate the browsing
and moving through the information, and the searching systems that allow searching of the
information accessible at the website.

Information Retrieval: Search Engines Boolean Operators

Information Retrieval
Many times, an informal description of the subject of their information seeking goal is the only
input they can provide to the digital library. Consequently, keeping in mind that physical access to
the underlying digital collection is not an option, efficient subject-based information retrieval is
crucial for a successful digital library.
Subject-based information retrieval in the context of digital libraries requires that an adequate number
of subject descriptors of sufficient quality should be applied to the underlying information resources.
Quantity, together with quality of subject-based indexing, can have an enormous influence on the
quality and power of results at the point of actual searching. After all, that which is not indexed
cannot be retrieved .

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