13 Definiciones The Digital Library is: The collection of services And the collection of information objects That support users in dealing with information objects And the organization and presentation of those objects Available directly or indirectly Via electronic/digital means.
14 Definiciones Digital library is a concept that has different meanings in different communities. To the engineering and computer science community, digital library is a metaphor for the new kinds of distributed data base services that manage unstructured multimedia data. To the political and business communities, the term represents a new marketplace for the world's information resources and services. To futurist communities, digital libraries represent the manifestation of Wells' World Brain.
15 Definiciones An organized data base of digital information objects in varying formats maintained to provide unmediated ease of access to a user community, with these further characteristics: an overall access tool (e.g. a catalog) provides search and retrieval capability over the entire data base; organized technical procedures exist through which the library management adds objects to the data base and removes them according to a coherent and accessible collections policy
Systems providing a community of users with coherent access to a large, organized repository of information and knowledge.
16 Definiciones Digital libraries are a set of electronic resources and associated technical capabilities for creating, searching, and using information. In this sense they are an extension and enhancement of information storage and retrieval systems that manipulate digital data in any medium (text, images, sounds; static or dynamic images) and exist in distributed networks. The content of digital libraries includes data, metadata that describe various aspects of the data (e.g., representation, creator, owner, reproduction rights), and metadata that consist of links or relationships to other data or metadata, whether internal or external to the digital library.
17 Definiciones Digital libraries are constructed — collected and organized — by a community of users, and their functional capabilities support the information needs and uses of that community. They are a component of communities in which individuals and groups interact with each other, using data, information, and knowledge resources and systems. In this sense they are an extension, enhancement, and integration of a variety of information institutions as physical places where resources are selected, collected, organized, preserved, and accessed in support of a user community. These information institutions include, among others, libraries, museums, archives, and schools, but digital libraries also extend and serve other community settings, including classrooms, offices, laboratories, homes, and public spaces.
18 Definiciones Systems providing a community of users with coherent access to a large, organized repository of information and knowledge. This organization of information is characterized by the absence of prior detailed knowledge of the uses of the information. The ability of the user to access, reorganize, and utilize this repository is enriched by the capabilities of digital technology.
The generic name for federated structures that provide humans both intellectual and physical access to the huge and growing worldwide networks of information encoded in multimedia digital formats.
19 Definiciones A library that has been extended and enhanced by the application of digital technology. Important aspects of the digital library that may be extended and enhanced include : Collections of the library Organization and management of the collections Access of the library items and the processing of the information contained in the items Communication of information about the items
20 Definiciones A digital library is a distributed technology environment which dramatically reduces barriers to the creation, dissemination, manipulation, storage, integration, and reuse of information by individuals and groups. A digital library is a machine readable representation of materials which might be found in a university library together with organizing information intended to help users find specific information. A digital library service is an assemblage of digital computing, storage, and communicate machinery together with the software needed to reprise, emulate, and extend the services provided by conventional libraries based on paper and other material means of collecting, storing, cataloging, finding, and disseminating information.
21 Arquitectura Modelo de arquitectura para metadatos: Dublin Core. 1995. Metadatos para las características fundamentales de docs. en red. Warwick Framework. 1996. Contenedor de metadatos. Ampliación del Dublin Core. Modelos de referencia para la conservación de objetos digitales: Kahn/Wilensky. Mayo 1995. OAIS (Open Archival Information System). Modelo de referencia ISO CCSDS 650.0-B-1. Enero 2002.
22 Arquitectura Dublin Core (Gp:) Contenido (Gp:) PropiedadIntelectual (Gp:) Instanciación (Gp:) Title (Gp:) Creator (Gp:) Date (Gp:) Subject (Gp:) Publisher (Gp:) Type (Gp:) Description (Gp:) Contributor (Gp:) Format (Gp:) Source (Gp:) Rights (Gp:) Identifier (Gp:) Language (Gp:) Relation (Gp:) Coverage
Título (DC.Title) Autor o Creador (DC.Creator) Claves (DC.Subject) Descripción (DC.Description) Editor (DC.Publisher) Otros Colaboradores (DC.Contributor) Fecha (DC.Date) Tipo del Recurso (DC.Type) Formato (DC.Format) Identificador del Recurso (DC.Indentifier) Fuente (DC.Source) Lengua (DC.Language) Relación (DC.Relation) Cobertura (DC.Coverage) Derechos (DC.Rights)
23 Arquitectura Ejemplo de Dublin Core en HTML < html> < head> < title> A Dirge < /title> < link rel = "schema.DC" href = "http://purl.org/DC/elements/1.0/"> < meta name = "DC.Title" content = "A Dirge"> < meta name = "DC.Creator" content = "Shelley, Percy Bysshe"> < meta name = "DC.Type" content = "poem"> < meta name = "DC.Date" content = "1820"> < meta name = "DC.Format" content = "text/html"> < meta name = "DC.Language" content = "en"> < /head> . . < body> < pre> Rough wind, that moanest loud Grief too sad for song; Wild wind, when sullen cloud Knells all the night long; Sad storm, whose tears are vain, Bare woods, whose branches strain, Deep caves and dreary main, – Wail, for the world's wrong! < /pre> < /body> < /html>
24 Arquitectura Warwick Framework
25 Arquitectura Basada en Kahn/Wilensky
26 Arquitectura Basada en Kahn/Wilensky
27 Arquitectura Basada en Kahn/Wilensky
28 Arquitectura Basada en Kahn/Wilensky Biblioteca compuesta por objetos digitales. Parte del objeto digital son metadatos y manejador. Los objetos se pueden agrupar en conjuntos. Los distintos tipos de materias de la biblioteca digital se pueden agrupar en categorías. El interfase de usuario lo utilizan clientes y administradores. El repositorio almacena y gestiona los objetos digitales. El sistema de manejadores asocia identificadores únicos con objetos digitales. El sistema de búsqueda permite las consultas.
29 Arquitectura OAIS
30 Ejemplo. Construcción de una Biblioteca Digital (NDLP-USA)
I. Select a collection for digital conversion A. Analyze Collection 1. Determine scope or extent of digitization (entire or subset?) 2. Assess status of custodial division processing and housing 3. Assess the status of access aids (degrees of completion, readiness, & format) 4. Assess best format, e.g. full text conversion, scanned page images 5. Assess the physical condition and readiness for scanning 6. Assess restrictions and copyright B. Consensus on collection among custodial div, NDLP team, & Library admin
This document outlines the production process for historical collections at the Library of Congress and reflects that institution's administrative structure and procedures. Not every collection requires all of the steps listed; some collections require additional steps not listed. In practice, many of the operations are carried out in parallel and not sequentially. January 1997.
31 Ejemplo
II. Plan the approach to digitization A. Develop method and resource plans for collection preparation & digitization 1. Develop plan for required processing by custodial division 2. Develop preservation treatment plan 3. Complete evaluation of physical condition with recommendations 4. Determine formats for capture, archiving and presentation 5. Determine physical size ( number of characters, images) & special production requirements B. Determine repository requirements 1. Determine scheme for file name assignment 2. Register aggregate name for collection 3. Estimate required storage space for digital collection 4. Update NDL forecast for storage 5. Evaluate existing finding aids or bib records and develop plan for access aid 6. Develop plan for framework 7. Develop restriction plan & implementation (copyright, terms of gift, publicity and privacy) a) Find and record restriction facts at collection level b) Find and record restriction facts at the item level c) Draft proposal for actions to be taken prior to and at the "release" time d) Draft restriction statement to accompany online collection e) Review copyright restrictions f) Implement action plans 8. Workplan for digitization and access aid completed
32 Ejemplo
III. Produce digital collection and access aid A. Process and house collection B. Implement preservation treatment plan C. Item Capture 1. Preparation 2. Image Capture 3. Archive images in repository 4. Text Capture 5. Archive text in repository 6. Audio Capture 7. Video capture D. Access Aid Development 1. Modify existing finding aid 2. Create new finding aid 3. Item-level finding aid (Bib record-style) 4. Incorporate basic-level links 5. Add enhanced-access links or subject terms 6. Prepare collection-level MARC record for future inclusion in MUMS E. Access Aid Complete
33 Ejemplo
IV. Store in digital archive A. Store files in directories as specified by naming scheme B. Register items in URN handle-server (when in use) C. Deposit items in digital repository (when in use) D. All items stored V. Create Framework A. Draft framework components B. Review completed framework components C. Create mockup of HTML document D. HTML mockup approved E. Develop and insert hypertext links F. Coordinate search engine link with ITS G. Insert final links H. Add graphic enhancements to HTML pages I. Mount HTML pages on LCWEB server J. Review framework for accuracy and completeness K. Framework completed
34 Ejemplo
VI. Assemble digital collection A. Store access aids in directories as specified by naming scheme B. Register document-style access aids in URN handle-server(when in use) C. Deposit document-style access aids in digital repository(when in use) D. Generate indexes for related MARC records E. Generate indexes for textual items in collection F. Prepare customized scripts associated with searching indexes and displaying results G. Add relevant viewers to supported configuration for WWW access in reading rooms H. Assembly completed VII. Test and refine A. Review assembled collection for accuracy and completeness B. Test links C. Make any necessary changes D. Testing completed VIII. Release Collection A. Move HTML pages to production area of LCWEB server B. Provide links to new collection from appropriate points in LCWEB structure C. Add collection-level MARC record with pointer in 856 field to MUMS D. Release digital collection to public IX. Update
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