| 1. |
- Fischer, Thomas, Dr.-Ing. 1978-, et al.
(författare)
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On challenges for achieving conformance of files to document standards : The case of PDF/A-1b
- 2021
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Ingår i: Joint Proceedings EURAS 2021. - Aachen : Verlag Mainz. - 9783958864214 - 395886421X ; , s. 171-190
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Konferensbidrag (refereegranskat)abstract
- File formats that are standardized and designed for longevity, such as PDF/A, are preferred in the context of long-term archival of digital assets. However, it is far from trivial to either create standard-conformant files or check the conformance of any given file due to the complexity and ambiguities in PDF standards. This study aims to investigate challenges when checking PDF/A conformance for real-world PDF files from public sector organizations that are intended for long-term-archival. Findings show that only a small proportion of the PDF files claim to conform to the PDF/A-1b specification and even fewer files pass conformance checks performed through the use of various conformance checking tools. Challenges for conformance checking tools include both ambiguities in the technical specifications of standards and limitations in the implementation of software.
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| 2. |
- Gamalielsson, Jonas, et al.
(författare)
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Exploring Influences Between ICT Standards and Their Implementations in Open Source Software Projects : The Case of H.264
- 2021
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Ingår i: Joint Proceedings EURAS 2021. - Aachen : Verlag Mainz. - 9783958864214 - 395886421X ; , s. 211-226
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Konferensbidrag (refereegranskat)abstract
- Novel results concerning influences between ICT standards and their implementations in open source software (OSS) are presented in this paper. Findings draw from observations and analysis related to the ITU-T H.264 standard and two OSS projects (OpenH264 and x264) that implement the standard. The study reports on a characterisation of organisations that influence and control the H.264 standard, organisations that influence and control OSS projects implementing the H.264 standard, and influences between contributors involved with the H.264 standard and OSS projects that implement the standard. Furthermore, projects for standardisation and implementation of H.264 are contrasted with respect to the mix of contributing organisations, and findings are put in relation to organisational strategies of contributing organisations and previous research.
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| 3. |
- Gamalielsson, Jonas, et al.
(författare)
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On engagement with ICT standards and their implementations in open source software projects : The case of H.265
- 2021
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Ingår i: Joint Proceedings EURAS 2021. - Aachen : Verlag Mainz. - 9783958864214 - 395886421X ; , s. 191-210
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Konferensbidrag (refereegranskat)abstract
- In this paper novel results are reported on engagement with ICT standards and their implementations in open source software (OSS). Specifically, findings draw from observations and analyses related to the ITU-T H.265 standard and five OSS projects (x265, libde265, SVT-HEVC, Kvazaar, and Turing codec) implementing the standard. The study reports on a characterisation of organisations that engage with standard development for the H.265 standard and organisations with declarations for H.265 in the ITU-T patent database in relation to standard development for H.265, and how OSS projects implementing H.265 are related to standard development for H.265.
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