| 1. |
- Durisic, Darko, 1986, et al.
(författare)
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Evolution of long-term industrial meta-models-an automotive case study of AUTOSAR
- 2014
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Ingår i: Proceedings - 40th Euromicro Conference Series on Software Engineering and Advanced Applications, SEAA 2014. - 1089-6503. - 9781479957941 ; , s. 141-148
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Konferensbidrag (refereegranskat)abstract
- Meta-models in software engineering are used to define properties of models. Therefore the evolution of the meta-models influences the evolution of the models and the software instantiated from them. The evolution of the meta-models is particularly problematic if the software has to instantiate two versions of the same meta-model- A situation common for long-term software development projects such as car development projects. In this paper, we present a case study of the evolution of the standardized meta-model used in the development of the automotive software systems-the AUTOSAR meta-model-at Volvo Car Corporation. The objective of this study is to assist automotive software designers in planning long term development projects based on multiple AUTOSAR meta-model versions. We achieve this by performing quantitative analysis of the AUTOSAR meta-model evolution in order to visualize the size and the complexity change between different meta-model versions and calculate the number of changes which need to be implemented to adopt a newer version. The analysis is done for each major role in the automotive development process affected by the changes.
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| 2. |
- Olsson, Helena Holmström, et al.
(författare)
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From opinions to data-driven software R&D: A multi-case study on how to close the 'open loop' problem
- 2014
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Ingår i: 40th Euromicro Conference Series on Software Engineering and Advanced Applications, SEAA 2014, Verona, Italy, 27-29 August 2014. - 1089-6503. - 9781479957941 ; , s. 9-16
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Konferensbidrag (refereegranskat)abstract
- In most software development companies the road mapping and requirements prioritization process is a complex process in which product management experiences difficulties in getting timely and accurate customer feedback. The feedback loop from customers is slow and often there is a lack of mechanisms that allow for efficient customer data collection and analysis. As a result, there is the risk that requirements prioritization becomes opinion-based rather than data-driven, and that R&D investments are made without an accurate way of continuously validating whether they correspond to customer needs. We call this phenomenon the 'open loop' problem, referring to the challenges for product management to get accurate and timely feedback from customers. To address this problem, we develop the HYPEX model (Hypothesis Experiment Data-Driven Development) that supports companies in running feature experiments to shorten customer feedback loops. We evaluate the model in three software development companies and observe how feature experiments increase the opportunity for data-driven software development.
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| 3. |
- Axelsson, Jakob, et al.
(författare)
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MOPED : A Mobile Open Platform for Experimental Design of Cyber-Physical Systems
- 2014
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Ingår i: The 40th Euromicro Conference on Software Engineering and Advanced Applications SEAA 2014. - 9781479957941 ; , s. 423-430
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Konferensbidrag (refereegranskat)abstract
- Due to the increasing importance of cyber-physical and embedded systems in industry, there is a strong demand for engineers with an updated knowledge on contemporary technology and methods in the area. This is a challenge for educators, in particular when it comes to creating hands-on experiences of real systems, due to their complexity and the fact that they are usually proprietary. Therefore, a laboratory environment that is representative of the industrial solutions is needed, with a focus on software and systems engineering issues. This paper describes such an environment, called the Mobile Open Platform for Experimental Design (MOPED). It consists of a model car chassis, equipped with a network of three control units based on standard hardware, and running the automotive software standard AUTOSAR, which consists of operating system, middleware, and application software structures. It is equipped with various sensors and actuators, and is open to extensions both in hardware and software. It also contains elements of future systems, since it allows connectivity to cloud services, development of federated embedded systems, and continuous deployment of new functionality. In this way, the platform provides a very relevant learning environment for cyber-physical systems, today and in the future.
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| 4. |
- Berling, Tomas, et al.
(författare)
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A Case Study Investigating the Characteristics of Verification and Validation Activities in the Software Development Process
- 2003
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Ingår i: Proceedings. 29th Euromicro Conference, 2003.. - 1089-6503. - 0769519962 ; , s. 405-408
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Konferensbidrag (refereegranskat)abstract
- System verification and validation are important activitiesin the software development process aiming at testing thesoftware system in various quality aspects.The purpose of this study is to investigate theimportant characteristics of the verification andvalidation activities in the software development processin an organization. A qualitative research method isemployed in order to facilitate the assessment andunderstanding of a testing key area regarding thesoftware development process. The methodology andresults could act as input to other organizations, whichare likely to have other important characteristics than theones included in this study.The main characteristics were identified in theanalysis and it was concluded that the results couldfacilitate further process improvements in theorganization.
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| 5. |
- Besker, Terese, 1970, et al.
(författare)
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A systematic literature review and a unified model of ATD
- 2016
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Ingår i: Proceedings of the EUROMICRO Conference. - 1089-6503. - 9781509028191 ; , s. 189-197
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Konferensbidrag (refereegranskat)abstract
- Fast software deliveries are hindered by high maintenance efforts due to internal quality issues and Technical Debt (TD) and specifically, Architectural Technical Debt (ATD) has received increased attention in the last few years. ATD has a significant influence and impact on system success and, left unchecked, it can cause expensive repercussions; it is, therefore, of maintenance and evolutionary importance to understand the basic underlying factors of ATD. Thus, with this as background, there is a need for a descriptive model to illustrate and explain the different ATD issues. The aim of this study is to synthesize and compile research efforts with the goal of creating new knowledge with a specific interest in the ATD field. The contribution of this paper is the presentation of a novel descriptive model, providing a comprehensive interpretation of the ATD phenomenon. This model categorizes the main characteristics of ATD and reveals their corresponding relations. The model is based on a systematic literature review (SLR) of currently recognized knowledge concerning ATD.
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| 6. |
- Campeanu, Gabriel, et al.
(författare)
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Component Allocation Optimization for Heterogeneous CPU-GPU Embedded Systems
- 2014
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Ingår i: The 40th Euromicro Conference on Software Engineering and Advanced Applications SEAA 2014, Verona, 27-29 Aug. 2014. - 9781479957941 ; , s. 229-236
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Konferensbidrag (refereegranskat)abstract
- In a quest to improve system performance, embedded systems are today increasingly relying on heterogeneous platforms that combine different types of processing units such as CPUs, GPUs and FPGAs. However, having better hardware capability alone does not guarantee higher performance; how functionality is allocated onto the appropriate processing units strongly impacts the system performance as well. Yet, with this increase in hardware complexity, finding suitable allocation schemes is becoming a challenge as many new constraints and requirements must now be taken into consideration. In this paper, we present a formal model for allocation optimization of embedded systems which contains a mix of CPU and GPU processing nodes. The allocation takes into consideration the software and hardware architectures, the system requirements and criteria upon which the allocation should be optimized. In its current version, optimized allocation schemes are generated through an integer programming technique to balance the system resource utilization and to optimize the system performance using the GPU resources.
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| 7. |
- Chaudron, Michel, 1969, et al.
(författare)
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Automated Prioritization of Metrics-based Design Flaws in UML Class Diagrams
- 2014
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Ingår i: 2014 40th Euromicro Conference Series on Software Engineering and Advanced Applications (Seaa 2014). - : IEEE. - 1089-6503. ; , s. 369-376
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Tidskriftsartikel (refereegranskat)abstract
- The importance of software architecture in software development prolongs throughout the entire software life cycle. This is because quality of the architectural design defines the structural aspects of the system that are difficult to change, and hence will affect most of the subsequent development and maintenance activities. This paper considers software design flaws (related to the system structure) and not flaws identified at run time (by testing). These design flaws are akin to what is described in the literature as anti-patterns, bad smells or rotting design. Recently, two tools that have been developed for quality assurance of software designs represented in the UML notation: SDMetrics and MetricView. However these tools are not considered practical because they report many design flaws which are not considered by developers (false positives). This paper explores an approach that tries to identify which design flaws should be considered important and which are not. To this end, we propose an approach for automated prioritization of software design flaws (BX approach), to facilitate developers to focus on important design flaws more effectively. We designed and implemented a tool (PoSDef) that implements this approach. The BX approach and the PoSDef tool have been validated using two open source projects and one large industrial system. Our validation consists of comparing our approach and tool with the existing design flaw tools. The evaluation has shown that the proposed approach could facilitate developers to identify and prioritize important design flaws effectively.
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| 8. |
- Egorova, Evgenia, et al.
(författare)
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Stakeholders’ Perception of Success: an Empirical Investigation
- 2009
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Ingår i: SEAA '09. 35th Euromicro Conference on Software Engineering and Advanced Applications, 2009.. - Patras, Greece : Euromicro. - 1089-6503. - 9780769537849 ; , s. 210-216
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Konferensbidrag (refereegranskat)abstract
- Different stakeholders involved in the software development may attribute success to different indicators. Analogously they may support different factors considered the root of successful projects. The study presented in this paper explores how different stakeholders perceive project success and what they deem the effect of specific factors on the project outcome. The study highlighted both commonalities and differences among three main stakeholder classes. A substantial agreement was observed concerning the characteristics that make a project or product successful. As far as the factors that could lead to success are concerned, more bias emerged.
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| 9. |
- Kasauli, Rashidah, et al.
(författare)
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Safety-Critical Systems and Agile Development: A Mapping Study
- 2018
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Ingår i: 44TH EUROMICRO CONFERENCE ON SOFTWARE ENGINEERING AND ADVANCED APPLICATIONS (SEAA 2018). - 1089-6503. - 9781538673836
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Konferensbidrag (refereegranskat)abstract
- Several studies report that the use of model-centric methods in the automotive domain is widespread and offers several benefits. However, existing work indicates that few modelling frameworks explicitly include requirements engineering (RE), and that natural language descriptions are still the status quo in RE. Therefore, we aim to increase the understanding of current and potential future use of models in RE, with respect to the automotive domain. In this paper, we report our findings from a multiple-case study with two automotive companies, collecting interview data from 14 practitioners. Our results show that models are used for a variety of different purposes during RE in the automotive domain, e.g., to improve communication and to handle complexity. However, these models are often used in an unsystematic fashion and restricted to few experts. A more widespread use of models is prevented by various challenges, most of which align with existing work on model use in a general sense. Furthermore, our results indicate that there are many potential benefits associated with future use of models during RE. Interestingly, existing research does not align well with several of the proposed use cases, e.g., restricting the use of models to informal notations for communication purposes. Based on our findings, we recommend a stronger focus on informal modelling and on using models for multi-disciplinary environments. Additionally, we see the need for future work in the area of model use, i.e., information extraction from models by non-expert modellers.
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| 10. |
- Magazinius, Ana, 1979, et al.
(författare)
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Effects of Feature Complexity on Software Effort Estimates - an Exploratory Study
- 2014
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Ingår i: 40th Euromicro Conference on Software Engineering and Advanced Applications, August 27-29, 2014, Verona, Italy. - 1089-6503. - 9781479957958 ; , s. 301-304
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Konferensbidrag (refereegranskat)abstract
- Software estimates are an important input to project selection, planning, monitoring as well assessment of projects’ success. However, the practice of estimation is also a challenging activity for many practitioners, and there is a continuing need to understand and improve it. To contribute to the existing knowledge of this process, an in-depth study was conducted where 18 practitioners from eight subdomains at a company producing embedded systems were interviewed. The contribution of this article is twofold: First, it reports the estimation challenges as perceived by the practitioners where the two most prominent were organizational dependencies and complexity of requested features. Second, since feature complexity was noted as one of the estimation challenges, this paper also reports on factors that are driving that complexity, two of the most common being dependencies on functionality developed by other parts of the organization, and functionality that affects the entire product.
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