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- Andersson, Ingemar, et al.
(författare)
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Preservation Services Planning : A Decision Support Framework
- 2014
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Konferensbidrag (refereegranskat)abstract
- Commercial organizations are experiencing a growing need to access business-criticaldata in the longer term of their operations. Governmental regulations as well as commercial interestsinfluence this need. Organizations are willing to procure cost-effective services to this end - servicesthat are increasingly based as public or private cloud solutions. With the advent of autonomous cloudservices comes the possibility to assemble (mix and match) preservation services in a workflowbasedservice-oriented solution. Following the interaction with information managers in (three)commercial organizations operating in different markets and after a review of current literature, wehave revealed a lack of comprehensive guidelines and decision support in service selection as part ofpreservation planning. Existing models and frameworks used for assessing the quality of preservationservices either manage performance-based features that service provider’s offer or the technicaldetails of the preservation actions themselves. In this paper we present our preservation-planningframework (Preserv-Qual) that addresses the need for decision support in the selection ofpreservation services that explicitly acknowledge the differences among aspects of information usewithin an organization. We describe the outcome from an evaluation of the framework in threecommercial organisations as a service quality assessment and decision support tool. This papershows how our framework supports the use of existing and proven methods, models and principlesfor service assessment, digital preservation and decision support.
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| 2. |
- Deutgen, Petra, et al.
(författare)
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Forward-Error-Control-Assisted Detection of Uncoded Bits in D-AMPS
- 1996
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Ingår i: Proceedings of the 1996 SNRV and NUTEK Conference on Radio Sciences and Telecommunications. - Luleå : Högskolan i Luleå. - 9163044552 ; , s. 673-677
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Konferensbidrag (refereegranskat)abstract
- We present a re-detection scheme for the purpose to decrease the bit-error rate. The method is based on unequal Forward Error control Coding, FEC, where some data bits are protected by FEC and some are not. With this method, information about the error corrected data bits is fed back to aid a re-detection of the uncoded data bits.The method is evaluated for the North American Digital Cellular Mobile Telephone System, D-AMPS. Simulations indicate that a performance gain of up to 3 dB of carrier to interference ratio is achievable on a frequency selective fading channel for a residual bit-error rate of 1%.
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| 5. |
- Randers, Frode, et al.
(författare)
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Inherent problems in cooperative planning for future access to information
- 2013
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Ingår i: Norsk konferanse for organisasjoners bruk av informasjonsteknologi, NOKOBIT 2013. - Trondheim : Tapir Akademisk Forlag. - 9788232103737
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Konferensbidrag (refereegranskat)abstract
- Successfully preserving information for the future draws upon multiple domains of knowledge, specifically knowledge about effects of technological and social change. The preservation process should accommodate for these effects in order to provide future access to the preserved information. If information production and information preservation occur in different organizations, such as when an organization uses external preservation services, special attention has to be given to the planning of the preservation process. Studies in the project ENSURE (Enabling kNowledge Sustainability Usability and Recovery for Economic value) indicate that the preservation planning is a joint effort drawing upon distinct knowledge that each organization have – knowledge about the information and knowledge about the preservation process. We describe some inherent problems emanating from cooperatively planning how to preserve information.
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