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software engineering 2014

作者： Rost, Dominik Naab, Matthias Lima, Crescendo Von Flach Chavez, Christina Fraunhofer Institute for Experimental Software Engineering Kaiserslautern Germany Fraunhofer Project Center on Software and Systems Engineering Software Engineering Laboratory Department of Computer Science Bahia Brazil

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Non-functional properties in software product lines: A reuse approach 15

Non-functional properties in software product lines: A reuse...

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9th International Workshop on Variability Modelling of software-Intensive systems, VaMoS 2015

作者： Soares, Larissa Rocha Do Carmo Machado, Ivan De Almeida, Eduardo Santana Federal University of Bahia Salvador Bahia Brazil Fraunhofer Project Center for Software and Systems Engineering Brazil

ISBN: (纸本)9781450332736

software Product Line engineering (SPLE) emerges for software organizations interested in customized products at reasonable costs. Based on the selection of features, stakeholders can derive programs satisfying a range of functional properties and non-functional ones. The explicit definition of Non-Functional Properties (NFP) during software configuration has been considered a challenging task. Dealing with them is not well established yet, neither in theory nor in practice. In this sense, we present a framework to specify NFP for SPLE and we also propose a reuse approach that promotes the reuse of NFP values during the product configuration. We discuss the results of a case study aimed to evaluate the applicability of the proposed work. Copyright 2015 ACM.

关键词： Computer software reusability

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software architecture documentation for developers: A survey

Software architecture documentation for developers: A survey

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7th European Conference on software Architecture, ECSA 2013

作者： Rost, Dominik Naab, Matthias Lima, Crescencio Von Flach Garcia Chavez, Christina Fraunhofer Institute for Experimental Software Engineering Kaiserslautern Germany Fraunhofer Project Center on Software and Systems Engineering Department of Computer Science Federal University of Bahia Bahia Brazil

ISBN: (纸本)9783642390302

software architecture has become an established discipline in industry. Nevertheless, the available documentation of architecture is often not perceived as adequate by developers. As a foundation for the improvement of methods and tools around architecture documentation, we conducted a survey with 147 industrial participants, investigating their current problems and wishes for the future. Participants from different countries in Europe, Asia, North and South America shared their experiences. This paper presents the results of the survey. The results confirmed the common belief that architecture documentation is most frequently outdated and inconsistent and backed it up with data. Further, developers perceive difficulties with a "one-size-fits-all" architecture documentation, which does not adequately provide information for their specific task and context. Developers seek for more interactive ways of working with architecture documentation that allow finding needed information more easily with extended navigation and search possibilities. © 2013 Springer-Verlag.

关键词： Surveys

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Towards understanding software change request assignment: A survey with practitioners 13

Towards understanding software change request assignment: A ...

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17th International Conference on Evaluation and Assessment in software engineering, EASE 2013

作者： Cavalcanti, Yguaratã Cerqueira Da Mota Silveira Neto, Paulo Anselmo Do Carmo Machado, Ivan De Almeida, Eduardo Santana De Lemos Meira, Silvio Romero SERPRO Recife Brazil Salvador Brazil DCC UFBA Fraunhofer Project Center for Software and Systems Engineering Salvador Brazil

ISBN: (纸本)9781450318488

Context: Change Request (CR) repositories play an important role in the software maintenance and evolution process. Through a CR repository, software changes are reported and assigned to developers. Finding the appropriate developer to a CR is crucial for obtaining the lowest, economically feasible, fixing time. Nevertheless, assigning CRs is a laborintensive and time consuming task. Although many work have proposed automated approaches for CR assignment, they have been implemented without investigating the fundamental aspects which characterize the task itself. Objective: This paper investigates the effort that is taken to assign CR to appropriate developers and identifies the fundamental aspects that characterize it, such as the strategies to perform the assignments and the complexity involved in them. Such investigation improves the current knowledge on the topic, providing researchers and practitioners with useful information towards developing effective solutions. Method: A survey was performed with software developers to understand CR assignment in the Brazilian Federal Organization for Data Processing. The questionnaire was composed of 38 questions, being them both open-ended and closed-ended. We analyzed the answers of 36 respondents. Results: We find that: there is a significant amount of time being spent on assignments (e.g., assigning 20 CRs can take up to 3.3 hours);there are many strategies used to assign CRs, which are complementary to those used in current automated solutions;and CR assignment is very complexity due to a process that requires cognitive abilities for information seeking, communication, and memorization. Conclusion: CR repositories are fundamental to software maintenance, however assigning CRs to developers is an expensive activity. Although we understand that fully and totally accurate automation of assignments is unlikely, further improvements on this direction are feasible and necessary to reduce costs. This way, this paper brings re

关键词： Computer software maintenance

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Strategies for consistency checking on software product lines: A mapping study 15

Strategies for consistency checking on software product line...

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19th International Conference on Evaluation and Assessment in software engineering, EASE 2015

作者： Santos, Alcemir Rodrigues De Oliveira, Raphael Pereira De Almeida, Eduardo Santana Reuse in Software Engineering Laboratory - RiSELabs Federal University of Bahia Salvador Brazil Fraunhofer Project Center for Software and Systems Engineering Federal University of Bahia Salvador Brazil

ISBN: (纸本)9781450333504

Context. software Product Lines (SPL) has become one of the most prominents way to promote the systematic reuse of software artifacts. Like any other piece of software, with the SPL aging, it becomes necessary to manage their evolution. However, in this process, engineers might introduce divergences among the SPL artifacts. Thus, a number of initiatives address the management of such inconsistencies. Objective. In this paper, we mapped the existing approaches to inconsistency management within SPL. Method. We used the systematic mapping study methodology. Results. We classified and performed a characterization of the approaches found, which we mangaged to arrange in three main categories. Most papers selected proposed new methods as solution research. Besides, there is still a need for validation and evaluation studies. Conclusion. We identified a lack of support for a number of activities of consistency assurance. For instance, no paper addressed the tracking of findings, decisions, and actions, as well as, few papers describing either the handling or a management policy for identified inconsistencies. Copyright 2015 ACM.

关键词： Computer software reusability

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EDXL-RESCUER ontology: An update based on faceted taxonomy approach

EDXL-RESCUER ontology: An update based on faceted taxonomy a...

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Brazilian Seminar on Ontologies, ONTOBRAS 2015

作者： Barros, Rebeca Kislansky, Pedro Salvador, Laís Almeida, Reinaldo Breyer, Matthias Pedraza, Laia Gasparin Vieira, Vaninha Federal University of Bahia Brazil Fraunhofer Project Center for Software and Systems Engineering UFBA Brazil VOMATEC International GmbH Germany

This paper describes an ontology created for the RESCUER1 (Reliable and Smart Crowdsourcing Solution for Emergency and Crisis Management), a project funded by the European Union and the Brazilian Ministry of Science, Technology and Innovation. RESCUER uses crowdsourcing information for supporting Industrial Parks (InPa) and Security Forces during an emergency situation. The proposal, EDXL-RESCUER ontology, is based on EDXL (Emergency Data Exchange Language), and it aims to be the RESCUER conceptual model related to the coordinating and exchanging of information with legacy systems. The ontology was evaluated with end-users during a workshop and the results show that EDXL-RESCUER is adequate for Emergency and Crisis domain in InPa and Security forces contexts. Specifically, this paper presents an update of EDXL-RESCUER ontology based on a faceted taxonomy approach.

关键词： Electronic data interchange

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Safe deployment for reconfigurable cyber-physical systems

Safe deployment for reconfigurable cyber-physical systems

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18th International Doctoral Symposium on Components and Architecture, WCOP 2013

作者： Pohlmann, Uwe Fraunhofer IPT Project Group Mechatronic Systems Design Software Engineering Zukunftsmeile 1 33102 Paderborn Germany

ISBN: (纸本)9781450321259

The number of software components within a cyber-physical systems increases continuously. However, not all components are needed at all time. Because of structural changes of software and hardware it is possible to use resources more efficiently. For example, energy is saved by shutting down currently not needed ECUs. software component instances (SCIs) must be deployed to an electronic control unit (ECU) to be executed. A safe deployment must consider the changes of the software and hardware structure. State-of-the-art deployment algorithms like [14] are not designed for reconfigurable software applications and reconfigurable hardware platforms. This paper presents first ideas how to specify reconfigurable hardware platforms and how to consider software and hardware changes for a safe deployment at design time. We demonstrate the properties of our deployment approach for reconfigurable cyber-physical systems by using Lego mindstorms robots. Copyright © 2013 ACM.

关键词： Embedded systems

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EDXL-RESCUER ontology: Conceptual model for semantic integration 12

EDXL-RESCUER ontology: Conceptual model for semantic integra...

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12th International Conference on Information systems for Crisis Response and Management, ISCRAM 2015

作者： Barros, Rebeca Kislansky, Pedro Salvador, Laís Almeida, Reinaldo Breyer, Matthias Gasparin, Laia Federal University of Bahia Fraunhofer Project Center for Software and Systems Engineering UFBA Brazil Federal University of Bahia Brazil VOMATEC International GmbH Germany

ISBN: (纸本)9788271177881

This paper describes an ontology created for the RESCUER1 (Reliable and Smart Crowdsourcing Solution for Emergency and Crisis Management), a project funded by the European Union and the Brazilian Ministry of Science, Technology and Innovation, it uses crowdsourcing information for supporting Industrial Parks (InPa) and Security Forces during an emergency situation. The proposal, EDXL-RESCUER ontology, is based on EDXL (Emergency Data Exchange Language), and it aims to be the RESCUER conceptual model related to the coordinating and exchanging of information with legacy systems. The ontology was evaluated with end users during a workshop and the results show that EDXL-RESCUER is adequate for Emergency and Crisis domain in InPa and Security forces contexts.

关键词： Electronic data interchange

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Solving the movie database case with QVTo 7

Solving the movie database case with QVTo

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7th Transformation Tool Contest, TTC 2014, Part of the software Technologies: Applications and Foundations, STAF 2014

作者： Gerking, Christopher Heinzemann, Christian Software Engineering Group Heinz Nixdorf Institute University of Paderborn Germany Fraunhofer IPT Project Group Mechatronic Systems Design Software Engineering Paderborn Germany

This paper proposes a solution to the IMDb movie database case of the Transformation Tool Contest 2014. Our solution is based on the Eclipse implementation of the OMG standard QVTo. We implemented all of the tasks including all of the extension tasks. Our benchmark results show that QVTo is able to handle models with a few thousand objects. Copyright © 2014.

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A balanced decomposition approach to real-time visualization of large vector maps in CyberGIS

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Frontiers of Computer Science 2015年第3期9卷 442-455页

作者： Mingqiang GUO Ying HUANG Zhong XIE Faculty of Information and Engineering China University of Geosciences Wuhan 430074 China Geographic Information Systems Software and Application Project Research Center of the Educational Department China University of Geosciences Wuhan 430074 China

With the dramatic development of spatial data in- frastructure, CyberGIS has become significant for geospatial data sharing. Due to the large number of concurrent users and large volume of vector data, CyberGIS faces a great chal- lenge in how to improve performance. The real-time visual- ization of vector maps is the most common function in Cyber- GIS applications, and it is time-consuming especially when the data volume becomes large. So, how to improve the effi- ciency of visualization of large vector maps is still a signif- icant research direction for GIScience scientists. In this re- search, we review the existing three optimization strategies, and determine that the third category strategy （i.e., parallel optimization） is appropriate for the real-time visualization of large vector maps. One of the key issues of parallel optimiza- tion is how to decompose the real-time visualization tasks into balanced sub tasks while taking into consideration the spatial heterogeneous characteristics. We put forward some rules that the decomposition should conform to, and design a real-time visualization framework for large vector maps. We focus on a balanced decomposition approach that can assure efficiency and effectiveness. Considering the spatial hetero- geneous characteristic of vector data, we use a ＂horizontal grid, vertical multistage＂ approach to construct a spatial point distribution information grid. The load balancer analyzes the spatial characteristics of the map requests and decomposes the real-time viewshed into multiple balanced sub ***, all the sub viewsheds are distributed to multiple server nodes to be executed in parallel, so as to improve the real- time visualization efficiency of large vector maps. A group of experiments have been conducted by us. The analysis results demonstrate that the approach proposed in this research has the ability of balanced decomposition, and it is efficient and effective for all geometry types of vector data.

关键词： real-time visualization large vector map bal-anced decomposition CyberGIS load balance

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