Publication
Strategies for digital preservation of information
| datacite.subject.fos | Engenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática | pt_PT |
| dc.contributor.advisor | Domingues, Patrício Rodrigues | |
| dc.contributor.advisor | Craveiro, Olga Marina Freitas | |
| dc.contributor.author | Rosa, Carlos André Lopes Santos | |
| dc.date.accessioned | 2018-01-17T11:17:30Z | |
| dc.date.available | 2018-01-17T11:17:30Z | |
| dc.date.issued | 2017-11-16 | |
| dc.description.abstract | With the advent of the digital era, the digital information produced has grown exponentially. According to Seamus Ross, digital information is a cultural product [1]. The growing dependency on digital information is changing the way our culture is recorded. There is no longer a strict relation between the logical structure of information, the physical storage support and its interpretation. Internet provided the right environment not only for the thriving of new communities but also for the growth of the information produced by them. Software and hardware have also evolved. Along with them came new capabilities of producing more accurate and space demanding information. One good example is multimedia content, audio and video, but there are many more. This new reality rose an awareness for the need to preserve all this information for future generations to come. Unlike their analogue peers, digital formats require a different effort to maintain as they are exposed to such threats as the deterioration of the medium they are stored in or formats obsolescence. A number of actions must be taken to ensure their long-term access. To address this need, digital repositories have evolved, accommodating now sets of features capable of implementing different strategies for the digital preservation of information. This thesis presents an analysis of the current state of the art open source repository software for the digital preservation of information identifying the five most relevant solutions. From those solutions, we picked the most feature rich and broader user community software, RODA, to which we propose and implement further improvements to an existing preservation strategy: federation. These improvements consist in building into the system an interoperability mechanism capable of allowing RODA to interact with other systems. This improvement is made by implementing a prototype composed by a CMIS server inside the repository, which communicates with client applications through the implementation of the CMIS protocol. We name this prototype RODA OpenCMIS Server, or in short, RODA-OCS. The prototype allows RODA to expose contents stored inside it publicly, under a controlled environment, in an authenticated and secure way. This goal is achieved by integrating our prototype with RODA native permissions system. RODA-OCS not only implements a file browser mechanism for content navigation but also a query engine capable of searching and retrieving contents based on their metadata, either technical or descriptive. Finally, we present a demonstration of the functioning of RODA-OCS. Through the use of a dataset conceived to test the functionalities | pt_PT |
| dc.identifier.tid | 201818736 | pt_PT |
| dc.identifier.uri | http://hdl.handle.net/10400.8/2955 | |
| dc.language.iso | eng | pt_PT |
| dc.subject | Dados digitais | pt_PT |
| dc.subject | Preservação | pt_PT |
| dc.subject | Repositórios | pt_PT |
| dc.subject | Código aberto | pt_PT |
| dc.title | Strategies for digital preservation of information | pt_PT |
| dc.type | master thesis | |
| dspace.entity.type | Publication | |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | masterThesis | pt_PT |
| thesis.degree.name | Mestrado em Engenharia Informática - Computação Móvel | pt_PT |
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