REVISION OF DIFFERENT IMPLEMENTATIONS FOR DIGITAL PRESERVATION: TOWARDS A METHODOLOGICAL PROPOSAL FOR PRESERVING AND AUDITING IR RELIABILITY/REVISION DE DISTINTAS IMPLEMENTACIONES PARA PRESERVACION DIGITAL: HACIA UNA PROPUESTA METODOLOGICA PARA LA PRESERVACION Y LA AUDITORIA DE CONFIABILIDAD DE RI/REVISAO DE DIFERENTES IMPLEMENTACOES PARA A PRESERVACAO DIGITAL: PARA UMA PROPOSTA METODOLOGICA DE PRESERVACAO E AUDITORIA DE CONFIANCA DE RI

This work introduces the initial experience of an infrastructure for digital documents preservation in archives or repositories. Prior backgrounds of similar infraestructures are recognized in this work, and among them three successful experiences are described. These experiences are all aimed to connect a digital repository with different software tools able to ensure digital preservation of repository contents according to OAIS ISO 14721 standard (2012). After the description of the three models, we describe a prototype under development in the repositories supported by PREBI-SEDICI (UNLP), which uses the software tools DSpace, Archivematica and ArchivesSpace. In this prototype, DSpace handles the ingest and delivery of digital contents, while Archivematica performs all the required digital preservation activities. This is achieved through a set of microservices applied to a conceptual structure similar to the information package (IP) in its differents versions (SIP, AIP, DIP). The resulting structure of the IP includes checksums, original files, logs, transfer documentation and XML metadata. The main purpose of this work is to show the background activities already carried out in institutions around the world, and to start a research project aiming to generate ideas and thoughts in the Latin American context. KEYWORDS: Preservation of digital documents. Institutional repository.Repository management tools. Information packs for archivists.OAIS model.Auditing. Este trabajo relata la experiencia inicial de prueba de una estructura apta para la preservacion de documentos digitales en un archivo o repositorio. Se reconocen numerosos antecedentes de estructuras similares y, entre ellas, se describen brevemente tres experiencias exitosas dedicadas a conectar un repositorio con herramientas capaces de asegurar la preservacion digital de los contenidos siguiendo el modelo OAIS, norma ISO 14721 (2012). Tras la descripcion de estos tres modelos considerados mas relevantes, se relata un prototipo en prueba en los repositorios gestionados en PREBI-SEDICI (UNLP) con las herramientas DSpace, Archivematica y ArchivesSpace, en el que el repositorio en DSpace esta encargado del ingreso y la entrega de los contenidos digitales mientras que la estructura de Archivematica realiza las actividades de preservacion digital a traves de la implementacion de un conjunto de microservicios, que actuan sobre una estructura conceptual asimilable al paquete de informacion (IP) en sus