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| 2. |
- Butler, Simon, et al.
(författare)
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An Exploration of Openness in Hardware and Software Through Implementation of a RISC-V Based Desktop Computer
- 2022
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Ingår i: OpenSym '22. - New York, NY, USA : Association for Computing Machinery (ACM). - 9781450398459 - 9781450398466
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Konferensbidrag (refereegranskat)abstract
- Open hardware and open source software platforms bring benefits to both implementers and users in the form of system adaptability and maintainability, and through the avoidance of lock-in, for example. Development of the \riscv\ Instruction Set Architecture and processors during the last ten years has made the implementation of a desktop computer using open hardware, including open processors, and open source software an approaching possibility. We use the SiFive Unmatched development board and Ubuntu Linux, and the recorded experiences of system builders using the Unmatched board to explore the extent to which it is possible to create an open desktop computer. The work identifies current limitations to implementing an open computer system, which lie mainly at the interface between the operating system and hardware components. Potential solutions to the challenges uncovered are proposed, including greater consideration of openness during the early stages of product design. A further contribution is made by an account of the synergies arising from open collaboration in a private-collective innovation process.
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| 3. |
- Gamalielsson, Jonas, et al.
(författare)
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On availability of Open Source Software reference implementations for standards issued by different standards setting organisations
- 2023
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Ingår i: Joint Proceedings EURAS & SIIT 2023. - Aachen : Verlag Mainz. - 9783958864917 - 3958864910 ; , s. 97-116
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Konferensbidrag (refereegranskat)abstract
- Software reference implementations of ICT standards have an important role for verifying that a standard is implementable, supporting interoperability testing among other implementations, and providing feedback to the standard development process. Providing reference implementations and widely used implementations of a standard as Open Source Software also promotes wide deployment in software systems, avoidance of different lock-in effects, interoperability, and longevity of systems and associated digital assets. In this paper results are reported on the availability of reference implementations and widely deployed implementations provided as Open Source Software for standards issued by different standards setting organisations. Specifically, findings draw from observations and analyses related to software implementations for identified standards issued by ETSI, IEC, IEEE, IETF, ISO, ITU-T, OASIS, and W3C.
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| 4. |
- 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 WebRTC
- 2022
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Ingår i: Proceedings 26th EURAS Annual Standardisation Conference. - Aachen : Verlag Mainz. - 9783958864467 ; , s. 143-162
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Konferensbidrag (refereegranskat)abstract
- Real-time communication (RTC) technologies for the web provide opportunities for individuals and organisations to work and collaborate remotely, and the need for such technologies has recently increased. Use of RTC technologies and tools for the web involves a number of challenges concerning data privacy and lock-in effects, such as dependency to specific suppliers and proprietary technologies. Use of open standards for RTC and open source software (OSS) implementing such standards can create conditions for avoiding issues related to data privacy and lock-in, and thereby provides opportunities for long-term sustainable solutions. The paper characterises how engagement with standardisation of WebRTC in the context of IETF and W3C is related to engagement with the WebRTC OSS project.
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| 5. |
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| 6. |
- Lundell, Björn, et al.
(författare)
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Enabling OSS usage through procurement projects : How can lock-in effects be avoided?
- 2021
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Ingår i: Open Source Systems. - Cham : Springer. - 9783030752507 - 9783030752538 - 9783030752514 ; , s. 16-27
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Konferensbidrag (refereegranskat)abstract
- Formulation of mandatory requirements in procurement projects has significant influence on opportunities for development and deployment of Open Source Software (OSS). The paper contributes insights on a widespread practice amongst public procurement projects which causes problematic lock-in effects and thereby inhibits opportunities for use of OSS solutions. Through a systematic investigation of 30 randomly selected procurement projects in the software domain the paper highlights illustrative examples of mandatory requirements which cause lock-in and presents five recommendations for how requirements instead should be formulated in order to avoid causing lock-in. Findings show significant lock-in caused by current procurement practices with a stark preference for proprietary software and SaaS solutions amongst procuring organisations.
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| 7. |
- Lundell, Björn, et al.
(författare)
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UML model interchange in heterogeneous tool environments : an analysis of adoptions of XMI 2
- 2006
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Ingår i: ACM/IEEE 9th International Conference on Model Driven Engineering Languages and Systems. - Berlin, Heidelberg : Springer Berlin Heidelberg. - 9783540457725 - 9783540457732 ; , s. 619-630
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Konferensbidrag (refereegranskat)abstract
- Heterogeneous tool environments are often a reality and it is therefore increasingly important to be able to interchange model information between tools. This is not only true concerning the natural heterogeneity resulting from distributed development contexts; the need may also arise in a tool chain and for legacy reasons. Without this possibility, there is significantly reduced flexibility, and a danger of tool lock-in. In this study we explore the use of the standardised interchange format XMI for supporting interchange of model information between heterogeneous tools. We report on the current state regarding XMI version 2.0 and greater. We find that there seems to be better support for model interchange using XMI 2.0 than for earlier versions of XMI, and speculate that one contributing factor may be the recent integrations of the Eclipse platform in UML modelling tools.
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| 8. |
- Persson, Anna, et al.
(författare)
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Adopting Open Source development tools in a commercial production environment : are we locked in?
- 2005
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Ingår i: EMMSAD'05: Exploring Modeling Methods for Systems Analysis and Design. - : CEUR. ; , s. 41-52
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Konferensbidrag (refereegranskat)abstract
- Many companies are using model-based techniques to offer a competitive advantage in an increasingly globalised systems development industry. Central to model-based development is the concept of models as the basis from which systems are generated, tested and maintained. The availability of high-quality tools, and the ability to adopt and adapt them to the company practice, are important qualities. Model interchange between tools becomes a major issue. Without it, there is significantly reduced flexibility, and a danger of tool lock-in. We explore the use of a standardised interchange format (XMI) for increasing flexibility in a company environment. We report on a case study in which a systems development company has explored the possibility of complementingtheir current proprietary tools with open source products for supporting their model-based development activities. We found that problems still exist with interchange, and that the technology needs to mature before industrial- strength model interchange becomes a reality.
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| 9. |
- Persson, Anna, et al.
(författare)
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Communication, coordination and control in distributed development : an OSS case study
- 2005
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Ingår i: OSS 2005. ; , s. 88-92
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Konferensbidrag (refereegranskat)abstract
- It has been claimed that distributed development practices in OSS development may be a model for enterprise development practices of the future. With this in mind, we have conducted a study of one OSS project, namely ArgoUML, with a view to understanding development practice within the project, and specifically to considering possible differences from traditional (non-OSS) distributed development conducted in a commercial project. We do this by explicitly considering issues of communication, coordination and control. Our findings suggest that primary differences lie in control and resulting project structures, motivated through differing goals. We comment on the open question of how the advantages of one development context can be realised in the other.
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| 10. |
- Persson, Anna, et al.
(författare)
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OSS tools in a heterogeneous environment for embedded systems modelling : an analysis of adoptions of XMI
- 2005
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Ingår i: Open Source Application Spaces. - New York : Association for Computing Machinery (ACM). - 1595931279 - 9781595931276 ; , s. 39-42
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Konferensbidrag (refereegranskat)abstract
- The development and maintenance of UML models is an inherently distributed activity, where distribution may be geographical, temporal or both. It is therefore increasingly important to be able to interchange model information between tools – whether in a tool chain, for legacy reasons or because of the natural heterogeneity resulting from distributed development contexts. In this study we consider the current utility of XMI interchange for supporting OSS tool adoption to complement other tools in an embedded systems development context. We find that the current state of play is disappointing, and speculate that the problem lies both with the open standards and the way in which they are being supported and interpreted. There is a challenge here for the OSS community to take a lead as tool vendors gear up for XMI 2.0.
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