1,721,011 research outputs found
Analysis and Summary of Feasible Marketplace Business Models Covering All Trials
No full textThis report analyses the market for cloud services of the type that POSTMARK is pioneering including type, scale, readiness and barriers to adoption. The POSTMARK trials are reviewed in terms of the business benefits that the services offer, the validation of these by those involved in the trials, and the further work needed to move from trials to a fully commercial and production setting. Business benefits were wide ranging and included lowering costs, better meeting of deadlines, increase in volume of business, and improved customer service. Response from the trials was positive in all cases. This was echoed by the two public demonstration events hosted by the project in 2012 where the attendees (around 100 in total from the film and post communities) were positive about the services that POSTMARK is offering. The main barriers encountered were security, the need for high levels of availability and trust, the need for complete out-of-the box solutions, and of course concerns over cost. These mirror findings in industry surveys and analyst reports. These barriers are not insurmountable but do require further investment to address. The key question is whether the market as a whole is sufficiently aware of, and ready to adopt, new services of the type developed by POSTMARK.Indications are good, but large scale adoption would be necessary to give sufficient return on the investment needed to provide fully operational POSTMARK services on a supported and commercial basis
RASSC (Retention and Access Services in Supply Chains)
No full textThis report describes a cost model and associated tools for estimating the long-term costs of operating a trusted digital repository service for aerospace data. The report reviews work already done by the digital preservation community on techniques for cost modelling, analyses the requirements for cost modelling for long-term retention and re-use of aerospace data (design, manufacturing and IVHM), and then describes both a simple empirical cost model and more sophisticated cost simulation tool and how they can be applied
Long term data integrity for large Audiovisual archives
No full textIn the broadcast and wider AV industry, digital file-based audiovisual archives are rapidly becoming embedded services within networked infrastructures and content-centric production and distribution processes. Online (network accessible) and long-term storage of digital content based on commodity IT technology (e.g. disk-servers and tape-robots) is an increasingly common approach, including conventional IT solutions for safety, e.g. backup and disaster recovery. But are these solutions safe? Can they assure the data integrity needed for long-term preservation of Petabyte volumes of data? The answer is no. Field studies, e.g. by CERN and NetApp, reveal that data corruption can take place silently without detection or correction including in 'enterprise class' systems explicitly designed to prevent data loss. We address this problem in the UK TSB supported AVATAR-m and EC supported PrestoPrime projects. Our approach accepts that loss does occur in storage and that archivists need tools to understand and manage this loss. Recent work, not yet presented elsewhere, includes new video encoding techniques (based on the BBC’s Dirac codec) that make video files more robust to data corruption, including the ability to degrade gracefully so content remains useable (as it used to be in the analogue world), along with simulation and modeling work that helps archives understand the risks of using IT storage and what approaches to take (e.g. how many copies to make, how often to check them, what encoding to use, what the costs will be and what losses could happen). In particular, we take into account the sensitivity of the specific data formats used for AV preservation to the various failure modes of the technology used to storage them. These new tools and techniques form part of our framework for implementing different preservation and integrity management strategies. Policy-based replication of content is used across multiple, distributed and heterogeneous storage locations to provide control over how many copies to make, where to put them and what file-formats to use. Automated integrity checking and repair is used to check for corruption. Large AV assets are deconstructed into smaller files, each of which can have different preservation policies applied to them. This allows differential strategies to be used, e.g. for the audio, video and metadata components of an MXF object, depending on the relative needs of each part of the asset for safety, accessibility, longevity We propose a presentation at JTS2010 to disseminate our work, including highlighting the risks of using IT storage for audiovisual preservation and the tools and techniques available to estimate, quantify, monitor and manage this worrying problem
Keeping Aircraft Serviced and in Service for 100 Years: Retention and Access Services in Supply Chains
No full textStorage and Services: Planning and managing cost, quality and risk
No full textPrestoPRIME (www.prestoprime.eu) is a European project that has launched the PrestoCentre, and has also developed a range of tools for digital audiovisual content: collections moving from tapes-on-shelves to files-on-mass-storage. This presentation focusses on planning and cost models for mass storag
Tools for modelling and simulating migration-based preservation
No full textThis report describes two tools for modelling and simulating the costs and risks of using IT storage systems for the long-term archiving of file-based AV assets. The tools include a model of storage costs, the ingest and access of files, the possibility of data corruption and loss from a range of mechanisms, and the impact of having limited resources with which to fulfill access requests and preservation actions. Applications include archive planning, development of a technology strategy, cost estimation for business planning, operational decision support, staff training and generally promoting awareness of the issues and challenges archives face in digital preservation
Audiovisual preservation strategies, data models and value-chains
No full textThis is a report on preservation strategies, models and value-chains for digital file-based audiovisual content. The report includes: (a)current and emerging value-chains and business-models for audiovisual preservation;(b) a comparison of preservation strategies for audiovisual content including their strengths and weaknesses, and(c) a review of current preservation metadata models, and requirements for extension to support audiovisual files
Transitional metal trilayers and films investigated using Brillouin light scattering and the magneto-optic Kerr effect
No full textSIGLEAvailable from British Library Document Supply Centre-DSC:DXN017591 / BLDSC - British Library Document Supply CentreGBUnited Kingdo
A Service Oriented Approach to Online Digital Audiovisual Archives
No full textIn many parts of the audiovisual community the boundaries between the environments used for content creation, distribution and archiving are becoming blurred. A transformation in the way that electronic media is created and consumed is being followed by a transformation in the way that this content is archived, repurposed and reused. Traditionally, archives sit at the tail end of the content lifecycle and provide a place where content ‘ends-up’ for safe keeping. However, digital audiovisual archives are now increasingly ‘embedded’ as active facilities within wider networked infrastructures and content-centric processes. The archive becomes an integrated repository of audiovisual assets which are under continuous development and reuse. This paper presents work done in the UK AVATAR-m project on service-oriented approaches to digital permanence and preservation of audiovisual content. In particular, we recognise that the business models and processes surrounding the storage, preservation and access to digital assets are evolving fast and transcend traditional organisational boundaries. Storage and access to archive content now takes place across organisational boundaries and there is a nascent but growing market for outsourced archive hosting. Our approach embraces this new world where archives can be both deployed in-house and as third-party services. Our specific focus is how to specify and then govern federated storage services in a way that ensures the long term safety, security and accessibility of audiovisual assets in a managed and cost effective way
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