10.3 Basic Issues in Digital Library Design:...

The following principles guide the development of the digital libraries (DL) architecture (Pandey 2003).

	Service driven: The architecture for the DLs must be driven by the services it provides and tools required for
	delivering the service.
	Open architecture: The architecture must be open, extensible and support interoperability among heterogeneous,
	distributed systems.
	Scalability: The architecture must be robust, scalable and reliable in a high transaction rate production setting
	thousands of patrons with a wide variety of backgrounds and information needs.
	Preservation: The architecture must ensure persistent access to collection of the DL, addressing such issues as
	naming, digital archiving and digital preservation.
	Privacy: The architecture must be sensitive to privacy issues and support both anonymous and customized
	access to resources.
	Practicality: The architecture should represent a flexible and practical approach to standards, recognizing the
	need to balance the level of information collection with economic constraints.
	Modularity: The architecture should represent a mix of new technology and legacy pieces, all of which must inter
	operate while involving at different rates.

10.3 Basic Issues in Digital Library Design:...

	Time frame: The time frame required to plan for system migrations in the next year as well as planning for a
	technology generation framework should be approximately 3 to 5 years.