The production of large volumes of scientific information, considering its cost, requires approaches that ensure its maintenance, reuse and recovery. These concerns prompted the emergence of digital curation. We intend to discuss the relevant thinking concerning the costs of digital curation. This means addressing the definition of the concept and the issue of costs, based on the studies related to cost models. A literature review was conducted using B-On and RCAAP as research sources, exploring the perceptions of the authors regarding the digital curation and its costs. The views expressed were organized around a scheme based on the Digital Curation Centre (DCC) lifecycle and the reference model Open Archival Information System (OAIS). It is proposed a systematization of digital curation issues bridging the DCC life cycle view of the digital object curation to the OAIS reference model approach, using a cross view seized by cost models and plan/data management policies.

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The advent of the information paradigm has shaken many of the principles of archival theory and practice. One key issue is knowing to which extent can digital information be trusted. Digital resources are represented by metadata, and trust consists in demonstrating their authenticity. Since the traditional elements used to verify the authenticity of analog records are not suitable in the digital world, the field faces a major challenge. The use of abundant, pertinent and constantly captured metadata seems to one of the most relevant solutions. This article aims to contribute to tackle this issue by setting the goal of proposing a model that attempts to include the most relevant metadata elements to capture the information that contributes for ascertaining the authenticity of digital archival descriptions. To that end, mixed methods methodology are employed. A qualitative documentary research is used to collect, analyze and interpret a corpus of scientific literature. As a complement, the quantitative technique requirements engineering is used to extract from international description standards the metadata requirements that can assist in the presumption of authenticity. Both approaches are then combined through a critical lens into a single unifying model for authenticity that is deemed as complete as necessary but as simple as possible. The model can be used by organizations or as a contribution to the discussion of authenticity and trustworthiness in digital archival descriptions.

This article presents the results of a documentary research regarding the current state of Organization and Representation of Musical Information (ORMI) in Portugal. Many authors describe the national scene of ORMI as very shortcoming, due to the usual difficulties: time vs. detail in the description and lack of knowledge of musical language by the technicians Information professionals. A survey of the monographs and articles as of 2011 that make a critical revision to the works of ORMI of several institutions was made, aiming to: 1) perceive their current state and 2) understand its strengths and weaknesses. We identified in these studies the analytic categories to create afterwards a classification structure by disciplinary areas, which shows semantic, structural and quality heterogeneity. The majority of Finding Aids are being produced by musicology projects with structures that respond to their information representation needs.

El estudio, de naturaleza cualitativa, parte del análisis del volumen de ventas de libros y su evolución en los mercados de Estados Unidos y Portugal. Busca comprender de qué modo las editoriales usan la red social Instagram para promover sus títulos, cómo evalúan la comunidad literaria Bookstagram y cuál es la percepción que la comunidad tiene de su papel y reconocimiento por parte de las editoriales en la promoción del libro y la lectura. Se propone responder a la siguiente pregunta de investigación: ¿cómo puede la red social Instagram, y particularmente la comunidad literaria Bookstagram, influenciar el mercado del libro?, para lo cual se sustenta en un estudio de caso – la comunidad literaria Bookstagram –, usando las técnicas de revisión de literatura, observación directa y entrevista. Los mercados del libro en ambos países son de difícil comparación en términos de volumen, aunque también geográficos, demográficos e incluso lingüísticos. A pesar de ello, los autores concluyen que la comunidad literaria Bookstagram tiene una gran influencia en los lectores y en la promoción de hábitos de lectura, notable en las generaciones más jóvenes y, en consecuencia, en el mercado editorial. Pero la relación entre bookstragrammers y editoriales es muy distinta en los dos países: mientras que en los Estados Unidos adquiere cada vez más relevancia, en Portugal es casi inexistente.