The Experts below are selected from a list of 113394 Experts worldwide ranked by ideXlab platform
Helena Holmstroem - One of the best experts on this subject based on the ideXlab platform.
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the Distributed Nature of software development a comparison of three development approaches
Pacific Asia Conference on Information Systems, 2003Co-Authors: Helena HolmstroemAbstract:Much change has undergone the environment in which software development takes place. To a greater extent, we are experiencing a Distributed development environment. In this paper, three approaches to Distributed software development are identified and explored – global software development (GSD), open source software development (OSS) and community-based software development (CSD). In a comparison of these, it is argued that the approaches embrace differences that are important to take into consideration for companies entering the Distributed environment of software development. This paper suggests that these differences are related to the dimensions of (1) Nature of development approach, (2) communication structure, and, (3) coordination mechanisms.
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PACIS - The Distributed Nature of Software Development - a comparison of three development approaches
2003Co-Authors: Helena HolmstroemAbstract:Much change has undergone the environment in which software development takes place. To a greater extent, we are experiencing a Distributed development environment. In this paper, three approaches to Distributed software development are identified and explored – global software development (GSD), open source software development (OSS) and community-based software development (CSD). In a comparison of these, it is argued that the approaches embrace differences that are important to take into consideration for companies entering the Distributed environment of software development. This paper suggests that these differences are related to the dimensions of (1) Nature of development approach, (2) communication structure, and, (3) coordination mechanisms.
Marcus Ciolkowski - One of the best experts on this subject based on the ideXlab platform.
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making runtime data useful for incident diagnosis an experience report
Product Focused Software Process Improvement, 2018Co-Authors: Florian Lautenschlager, Marcus CiolkowskiAbstract:Important and critical aspects of technical debt often surface at runtime only and are difficult to measure statically. This is a particular challenge for cloud applications because of their highly Distributed Nature. Fortunately, mature frameworks for collecting runtime data exist but need to be integrated.
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PROFES - Making Runtime Data Useful for Incident Diagnosis: An Experience Report
Product-Focused Software Process Improvement, 2018Co-Authors: Florian Lautenschlager, Marcus CiolkowskiAbstract:Important and critical aspects of technical debt often surface at runtime only and are difficult to measure statically. This is a particular challenge for cloud applications because of their highly Distributed Nature. Fortunately, mature frameworks for collecting runtime data exist but need to be integrated.
Aniruddha R. Thakar - One of the best experts on this subject based on the ideXlab platform.
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Running a Distributed virtual observatory: US Virtual Astronomical Observatory operations
Observatory Operations: Strategies Processes and Systems IV, 2012Co-Authors: Thomas A. Mcglynn, Robert J. Hanisch, G. Bruce Berriman, Aniruddha R. ThakarAbstract:Operation of the US Virtual Astronomical Observatory shares some issues with modern physical observatories, e.g., intimidating data volumes and rapid technological change, and must also address unique concerns like the lack of direct control of the underlying and scattered data resources, and the Distributed Nature of the observatory itself. In this paper we discuss how the VAO has addressed these challenges to provide the astronomical community with a coherent set of science-enabling tools and services. The Distributed Nature of our virtual observatory-with data and personnel spanning geographic, institutional and regime boundaries-is simultaneously a major operational headache and the primary science motivation for the VAO. Most astronomy today uses data from many resources. Facilitation of matching heterogeneous datasets is a fundamental reason for the virtual observatory. Key aspects of our approach include continuous monitoring and validation of VAO and VO services and the datasets provided by the community, monitoring of user requests to optimize access, caching for large datasets, and providing Distributed storage services that allow user to collect results near large data repositories. Some elements are now fully implemented, while others are planned for subsequent years. The Distributed Nature of the VAO requires careful attention to what can be a straightforward operation at a conventional observatory, e.g., the organization of the web site or the collection and combined analysis of logs. Many of these strategies use and extend protocols developed by the international virtual observatory community.
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running a Distributed virtual observatory u s virtual astronomical observatory operations
Proceedings of SPIE, 2012Co-Authors: Thomas Mcglynn, Robert J. Hanisch, Bruce G Berriman, Aniruddha R. ThakarAbstract:Operation of the US Virtual Astronomical Observatory shares some issues with modern physical observatories, e.g., intimidating data volumes and rapid technological change, and must also address unique concerns like the lack of direct control of the underlying and scattered data resources, and the Distributed Nature of the observatory itself. In this paper we discuss how the VAO has addressed these challenges to provide the astronomical community with a coherent set of science-enabling tools and services. The Distributed Nature of our virtual observatory-with data and personnel spanning geographic, institutional and regime boundaries-is simultaneously a major operational headache and the primary science motivation for the VAO. Most astronomy today uses data from many resources. Facilitation of matching heterogeneous datasets is a fundamental reason for the virtual observatory. Key aspects of our approach include continuous monitoring and validation of VAO and VO services and the datasets provided by the community, monitoring of user requests to optimize access, caching for large datasets, and providing Distributed storage services that allow user to collect results near large data repositories. Some elements are now fully implemented, while others are planned for subsequent years. The Distributed Nature of the VAO requires careful attention to what can be a straightforward operation at a conventional observatory, e.g., the organization of the web site or the collection and combined analysis of logs. Many of these strategies use and extend protocols developed by the international virtual observatory community. Our long-term challenge is working with the underlying data providers to ensure high quality implementation of VO data access protocols (new and better 'telescopes'), assisting astronomical developers to build robust integrating tools (new 'instruments'), and coordinating with the research community to maximize the science enabled.
Florian Lautenschlager - One of the best experts on this subject based on the ideXlab platform.
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making runtime data useful for incident diagnosis an experience report
Product Focused Software Process Improvement, 2018Co-Authors: Florian Lautenschlager, Marcus CiolkowskiAbstract:Important and critical aspects of technical debt often surface at runtime only and are difficult to measure statically. This is a particular challenge for cloud applications because of their highly Distributed Nature. Fortunately, mature frameworks for collecting runtime data exist but need to be integrated.
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PROFES - Making Runtime Data Useful for Incident Diagnosis: An Experience Report
Product-Focused Software Process Improvement, 2018Co-Authors: Florian Lautenschlager, Marcus CiolkowskiAbstract:Important and critical aspects of technical debt often surface at runtime only and are difficult to measure statically. This is a particular challenge for cloud applications because of their highly Distributed Nature. Fortunately, mature frameworks for collecting runtime data exist but need to be integrated.
Said Mazer - One of the best experts on this subject based on the ideXlab platform.
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Electrical Compact Modeling of SiGe Phototransistor: Impact of the Distributed Nature on Dynamic Behavior
IEEE Transactions on Electron Devices, 2020Co-Authors: Alae Bennour, Jean-luc Polleux, Catherine Algani, Zerihun Gedeb Tegegne, Said MazerAbstract:This article presents and analyzes an improved electrical compact model of SiGe/Si-double heterojunction bipolar phototransistors (HPT). This is a complete one, operating in dc, in nonlinear large-signal ac mode and in optomicrowave operating. This HPT was fabricated based on an existing industrial SiGe heterojunction bipolar transistor (HBT) Telefunken GmbH technology. Several deviations from the standard HBT electrical behavior are observed when the optical access on the top of the HPT was created. A compact, physically based model is then proposed to take into account these phenomena called “2-D electrical extension effect,” which explains the 2-D and Distributed Nature of charge carriers flow within the SiGe HPT. Parameter extraction, verification, and validation of the dynamic behavior model are done by RF characterization, through S-parameters and transition frequency curves, and by the optomicrowave gain of the optical characteristics over a wide frequency range.
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Large-Signal Static Compact Circuit Model of SiGe Heterojunction Bipolar Phototransistors: Effect of the Distributed Nature of Currents
IEEE Transactions on Electron Devices, 2018Co-Authors: Alae Bennour, Jean-luc Polleux, Zerihun Gedeb Tegegne, Said Mazer, M. El Bekkali, Catherine AlganiAbstract:This paper presents a physically based opto-electrical compact model of a SiGe/Si heterojunction phototransistor (HPT). This static large-signal model is intended to model the static electrical and optical static operation of the HPT. The measured HPT was developed by extending the structure of an existing SiGe heterojunction bipolar transistor (HBT) from the Telefunken GmbH process technology. Unusual behaviors are observed compared to the standard HBT behaviors when the optical access on the top of the HPT is created. The proposed compact model then includes a phenomenon also called “2-D electrical extension effect” that explains the 2-D (vertical and lateral) charge carriers flow within the SiGe HPT. The validity and accuracy of the proposed model in the static mode of operation are confirmed through ${I}_{C}$ – ${V}_{{\text{CE}}}$ and Gummel characteristics, both under dark and light conditions. The dc responsivity of the HPT is also extracted from the model and agrees quite well to measurement.
