Self-adaptation endows a software system with the ability to satisfy certain objectives by automatically modifying its behavior. While many promising approaches for the construction of self-adaptive software systems have been developed, the majority of them ignore the uncertainty underlying the adaptation decisions. This has been one of the key obstacles to wide-spread adoption of self-adaption techniques in risk-averse real-world settings. In this paper, we describe an approach, called POssIbilistic SElf-aDaptation (POISED), for tackling the challenge posed by uncertainty in making adaptation decisions. POISED builds on possibility theory to assess both the positive and negative consequences of uncertainty. It makes adaptation decisions that result in the best range of potential behavior. We demonstrate POISED's application to the problem of improving a software system's quality of service via runtime reconfiguration of its customizable software components. We have extensively evaluated POISED using a prototype of a robotic software system.
{"title":"Taming uncertainty in self-adaptive software","authors":"N. Esfahani, Ehsan Kouroshfar, S. Malek","doi":"10.1145/2025113.2025147","DOIUrl":"https://doi.org/10.1145/2025113.2025147","url":null,"abstract":"Self-adaptation endows a software system with the ability to satisfy certain objectives by automatically modifying its behavior. While many promising approaches for the construction of self-adaptive software systems have been developed, the majority of them ignore the uncertainty underlying the adaptation decisions. This has been one of the key obstacles to wide-spread adoption of self-adaption techniques in risk-averse real-world settings. In this paper, we describe an approach, called POssIbilistic SElf-aDaptation (POISED), for tackling the challenge posed by uncertainty in making adaptation decisions. POISED builds on possibility theory to assess both the positive and negative consequences of uncertainty. It makes adaptation decisions that result in the best range of potential behavior. We demonstrate POISED's application to the problem of improving a software system's quality of service via runtime reconfiguration of its customizable software components. We have extensively evaluated POISED using a prototype of a robotic software system.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126631402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Software development is a largely collaborative effort, of which the actual encoding of program logic in source code is a relatively small part. Yet, little is known about the impact of collaboration between stakeholders on software quality. We hypothesize that the collaboration between stakeholders during software development has a non-negligible impact on the software system. Information about collaborative activities can be recovered from traces of their communication, which are recorded in the repositories used for the development of the software system. This thesis contributes the following: 1) to make this information accessible for practitioners and researchers, we present approaches to distill communication information from development repositories, and empirically validate our proposed extractors. 2) By linking back the extracted communication data to the parts of the software system under discussion, we are able to empirically study the impact of communication, as a proxy to collaboration between stakeholders, on a software system. Through case studies on a broad spectrum of open-source software projects, we demonstrate the important role of social interactions between stakeholders with respect to the evolution of a software system.
{"title":"Mining development repositories to study the impact of collaboration on software systems","authors":"Nicolas Bettenburg","doi":"10.1145/2025113.2025165","DOIUrl":"https://doi.org/10.1145/2025113.2025165","url":null,"abstract":"Software development is a largely collaborative effort, of which the actual encoding of program logic in source code is a relatively small part. Yet, little is known about the impact of collaboration between stakeholders on software quality. We hypothesize that the collaboration between stakeholders during software development has a non-negligible impact on the software system. Information about collaborative activities can be recovered from traces of their communication, which are recorded in the repositories used for the development of the software system. This thesis contributes the following: 1) to make this information accessible for practitioners and researchers, we present approaches to distill communication information from development repositories, and empirically validate our proposed extractors. 2) By linking back the extracted communication data to the parts of the software system under discussion, we are able to empirically study the impact of communication, as a proxy to collaboration between stakeholders, on a software system. Through case studies on a broad spectrum of open-source software projects, we demonstrate the important role of social interactions between stakeholders with respect to the evolution of a software system.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131110606","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The ELI -- Extreme Light Infrastructure -- or as it is commonly referred to: the SUPERLASER will be one of the large research facilities of the European Union. ELI will be built with a joint international effort to form an integrated infrastructure comprised of three branches. The ELI Beamline Facility (Prague, Czech Republic) will mainly focus on particle acceleration and X-ray generation, while the ELI Nuclear Physics Facility (Magurele, Romania) will be dealing with laser-based nuclear physics as well as high field physics. In the talk we introduce the ELI Attosecond Light Pulse Source (ELI-ALPS) to be built in Szeged, Hungary. The primary mission of the ELI-ALPS Research Infrastructure is to provide the international scientific community with a broad range of ultrafast light sources, especially with coherent XUV and X-ray radiation, including single attosecond pulses. Thanks to this combination of parameters never achieved before, energetic attosecond X-ray pulses of ELI-ALPS will enable recording freeze-frame images of the dynamical electronic-structural behaviour of complex atomic, molecular and condensed matter systems, with attosecond-picometer resolution. The secondary purpose is to contribute to the scientific and technological development towards generating 200 PW pulses, being the ultimate goal of the ELI project. ELI-ALPS will be operated also as a user facility and hence serve basic and applied research in physical, chemical, material and biomedical sciences as well as industrial applications. The Facility will be built by the end of 2015 from a budget exceeding 240M EUR. The building and the IT infrastructure, from high speed internal networking, remote controlled system alignment, targetry and data aquisition through laser and radiation safety tools until security systems, will challenge the state of the art of similar research facilities.
{"title":"ELI-ALPS: the ultrafast challenges in Hungary","authors":"G. Szabó","doi":"10.1145/2025113.2025117","DOIUrl":"https://doi.org/10.1145/2025113.2025117","url":null,"abstract":"The ELI -- Extreme Light Infrastructure -- or as it is commonly referred to: the SUPERLASER will be one of the large research facilities of the European Union. ELI will be built with a joint international effort to form an integrated infrastructure comprised of three branches. The ELI Beamline Facility (Prague, Czech Republic) will mainly focus on particle acceleration and X-ray generation, while the ELI Nuclear Physics Facility (Magurele, Romania) will be dealing with laser-based nuclear physics as well as high field physics. In the talk we introduce the ELI Attosecond Light Pulse Source (ELI-ALPS) to be built in Szeged, Hungary.\u0000 The primary mission of the ELI-ALPS Research Infrastructure is to provide the international scientific community with a broad range of ultrafast light sources, especially with coherent XUV and X-ray radiation, including single attosecond pulses. Thanks to this combination of parameters never achieved before, energetic attosecond X-ray pulses of ELI-ALPS will enable recording freeze-frame images of the dynamical electronic-structural behaviour of complex atomic, molecular and condensed matter systems, with attosecond-picometer resolution. The secondary purpose is to contribute to the scientific and technological development towards generating 200 PW pulses, being the ultimate goal of the ELI project. ELI-ALPS will be operated also as a user facility and hence serve basic and applied research in physical, chemical, material and biomedical sciences as well as industrial applications.\u0000 The Facility will be built by the end of 2015 from a budget exceeding 240M EUR. The building and the IT infrastructure, from high speed internal networking, remote controlled system alignment, targetry and data aquisition through laser and radiation safety tools until security systems, will challenge the state of the art of similar research facilities.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115927364","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We present the Storyboard Programming framework, a new synthesis system designed to help programmers write imperative low-level data-structure manipulations. The goal of this system is to bridge the gap between the "boxes-and-arrows" diagrams that programmers often use to think about data-structure manipulation algorithms and the low-level imperative code that implements them. The system takes as input a set of partial input-output examples, as well as a description of the high-level structure of the desired solution. From this information, it is able to synthesize low-level imperative implementations in a matter of minutes. The framework is based on a new approach for combining constraint-based synthesis and abstract-interpretation-based shape analysis. The approach works by encoding both the synthesis and the abstract interpretation problem as a constraint satisfaction problem whose solution defines the desired low-level implementation. We have used the framework to synthesize several data-structure manipulations involving linked lists and binary search trees, as well as an insertion operation into an And Inverter Graph.
{"title":"Synthesizing data structure manipulations from storyboards","authors":"Rishabh Singh, Armando Solar-Lezama","doi":"10.1145/2025113.2025153","DOIUrl":"https://doi.org/10.1145/2025113.2025153","url":null,"abstract":"We present the Storyboard Programming framework, a new synthesis system designed to help programmers write imperative low-level data-structure manipulations. The goal of this system is to bridge the gap between the \"boxes-and-arrows\" diagrams that programmers often use to think about data-structure manipulation algorithms and the low-level imperative code that implements them. The system takes as input a set of partial input-output examples, as well as a description of the high-level structure of the desired solution. From this information, it is able to synthesize low-level imperative implementations in a matter of minutes.\u0000 The framework is based on a new approach for combining constraint-based synthesis and abstract-interpretation-based shape analysis. The approach works by encoding both the synthesis and the abstract interpretation problem as a constraint satisfaction problem whose solution defines the desired low-level implementation. We have used the framework to synthesize several data-structure manipulations involving linked lists and binary search trees, as well as an insertion operation into an And Inverter Graph.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"85 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131581261","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This paper proposes a PhD research that deals with improving internal documentation in software projects. Software developers often do not like to create documentation because it has few value to the individual himself. Yet the purpose of internal documentation is to help others understand the software and the problem it addresses. Documentation increases development speed, reduces software maintenance costs, helps to keep development on track, and mitigates the negative effects of distance in distributed settings. This research aims to increase the individuals' motivation to write documentation by means of reputation. The CollabReview prototype is a web-based reputation system that analyzes artifacts of internal documentation to derive personal reputation scores. Developers making many good contributions will achieve higher reputation scores. These scores can then be employed to softly influence developer behavior, e.g. by incentivizing them to contribute to documentation with social rewards. No strict rule enforcement is necessary.
{"title":"Reputation-based self-management of software process artifact quality in consortium research projects","authors":"Christian R. Prause","doi":"10.1145/2025113.2025166","DOIUrl":"https://doi.org/10.1145/2025113.2025166","url":null,"abstract":"This paper proposes a PhD research that deals with improving internal documentation in software projects. Software developers often do not like to create documentation because it has few value to the individual himself. Yet the purpose of internal documentation is to help others understand the software and the problem it addresses. Documentation increases development speed, reduces software maintenance costs, helps to keep development on track, and mitigates the negative effects of distance in distributed settings. This research aims to increase the individuals' motivation to write documentation by means of reputation. The CollabReview prototype is a web-based reputation system that analyzes artifacts of internal documentation to derive personal reputation scores. Developers making many good contributions will achieve higher reputation scores. These scores can then be employed to softly influence developer behavior, e.g. by incentivizing them to contribute to documentation with social rewards. No strict rule enforcement is necessary.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128438034","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
C. Bird, Nachiappan Nagappan, Brendan Murphy, H. Gall, Premkumar T. Devanbu
Ownership is a key aspect of large-scale software development. We examine the relationship between different ownership measures and software failures in two large software projects: Windows Vista and Windows 7. We find that in all cases, measures of ownership such as the number of low-expertise developers, and the proportion of ownership for the top owner have a relationship with both pre-release faults and post-release failures. We also empirically identify reasons that low-expertise developers make changes to components and show that the removal of low-expertise contributions dramatically decreases the performance of contribution based defect prediction. Finally we provide recommendations for source code change policies and utilization of resources such as code inspections based on our results.
{"title":"Don't touch my code!: examining the effects of ownership on software quality","authors":"C. Bird, Nachiappan Nagappan, Brendan Murphy, H. Gall, Premkumar T. Devanbu","doi":"10.1145/2025113.2025119","DOIUrl":"https://doi.org/10.1145/2025113.2025119","url":null,"abstract":"Ownership is a key aspect of large-scale software development. We examine the relationship between different ownership measures and software failures in two large software projects: Windows Vista and Windows 7. We find that in all cases, measures of ownership such as the number of low-expertise developers, and the proportion of ownership for the top owner have a relationship with both pre-release faults and post-release failures. We also empirically identify reasons that low-expertise developers make changes to components and show that the removal of low-expertise contributions dramatically decreases the performance of contribution based defect prediction. Finally we provide recommendations for source code change policies and utilization of resources such as code inspections based on our results.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"82 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113944471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mechatronics is the engineering discipline concerned with the construction of systems incorporating mechanical, electronical and information technology components. The word mechatronics as a blend of mechanics and electronics has already been invented 40 years ago by a Japanese company. Then, mechatronics just meant complementing mechanical parts with some electronical units, a typical example being a photo camera. Today, mechatronics is an area combining a large number of advanced techniques from engineering, in particular sensor and actuator technology, with computer science methods.
{"title":"Building advanced mechatronic systems","authors":"Wilhelm Schäfer","doi":"10.1145/2025113.2025115","DOIUrl":"https://doi.org/10.1145/2025113.2025115","url":null,"abstract":"Mechatronics is the engineering discipline concerned with the construction of systems incorporating mechanical, electronical and information technology components. The word mechatronics as a blend of mechanics and electronics has already been invented 40 years ago by a Japanese company. Then, mechatronics just meant complementing mechanical parts with some electronical units, a typical example being a photo camera. Today, mechatronics is an area combining a large number of advanced techniques from engineering, in particular sensor and actuator technology, with computer science methods.","PeriodicalId":184518,"journal":{"name":"ESEC/FSE '11","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129015693","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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