This book provides a single-volume introduction to the principles, strategies and practices currently applied by librarians and recordkeeping professionals to the critical issue of preservation of digital information. It incorporates practice from both the recordkeeping and the library communities, taking stock of current knowledge about digital preservation and describing recent and current research, to provide a framework for reflecting on the issues that digital preservation raises in professional practice.

This book provides a single-volume introduction to the principles, strategies and practices currently applied by librarians and record keepers to the preservation of digital information. Also included are case studies of practice from the library, record keeping, audiovisual archiving, data archiving and geospatial communities.

Special libraries are facing increasing challenges today. The bigfgest challenge before them is how to demonstrate that they are the best source of specialized information despite reliance on the web for information. Special libraries therefore need to change in terms of their collections, roles, services and evolve strategies for managing the change. Preservation refers to the set of activities that aims to prolong the life of a record and relevant metadata, or enhance its value, or improve access to it through noninterventive means. This includes actions taken to influence records creators prior to selection and acquisition. The purpose of preservation is to ensure protection of information of enduring value for access by present and future generations. Libraries and archives have served as the central institutional focus for preservation, and both types of institutions include preservation as one of their core functions. In recent decades, many major libraries and archives have established formal preservation programs for traditional materials which include regular allocation of resources for preservation, preventive measures to arrest deterioration of materials, remedial measures to restore the usability of selected materials, and the incorporation of preservation needs and requirements into overall program planning. This book attempts to provide all basic aspects of digital library in an authentic but simple style. It describes the revolutionary changes brought out by digital libraries in the entire concept of library organisation, managements and operations. It also discusses the challenges emerging due to the adoption of newer technologies.

This book addresses the process of maintaining digital objects through time to ensure continued access, an aspect that has become a crucial issue in recent years. It offers a concise yet comprehensive discussion of key concepts and requirements for long-term digital preservation, and presents a pioneering framework for digital repositories that enables the long-term archiving and metadata management for large volumes of digital resources based on a system that has already been completely designed and launched. In the framework, the reliability of information readouts is ensured by the repository with two-level data recording replication and monitoring mechanisms in the repository management system (RMS) and the file systems, and by the RMS’s distributed nature. The advanced RMS allows operations on the archival storage to be scheduled, while also taking into account low energy consumption requirements. After presenting the framework in detail, the book assesses and demonstrates the approach’s viability in terms of delivering accessibility, authenticity and usability. As such, the book offers a valuable resource for information technology (IT) researchers and practitioners, as well as archivists and librarians.