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  • 1.
    Blom, Martin
    et al.
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).
    Eldh, Sigrid
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).
    Is Common Test Data the Solution to Poor Quality?: Solving the Right Problem – An Analysis of a Public Health Information System2013Inngår i: Procedia Technology: HCIST 2013 - International Conference on Health and Social Care Information Systems and Technologies / [ed] Maria Manuela Cruz-Cunha, João Varajão, Helmut Krcmar and Ricardo Martinho, Elsevier, 2013, Vol. 9, s. 1227-1236Konferansepaper (Fagfellevurdert)
    Abstract [en]

    This paper reports our initial findings regarding the state of testing of software in the Swedish public health information system. At present, the system is only available through a black-box interface, i.e. through the GUI. This and other issues related to politics, management and organization indicate that much work is needed in order for the software to have the quality level expected by a safety-critical system. The proposed solution by the public health organization for raising the quality is to use an independent test database. Based on our initial understanding of the problem, we argue that there might be other solutions that would perhaps be more cost-effective and have a stronger impact on the quality of the system. Our main contribution lies in the data analysis, where we have collected the problems and suggested alternative cost-saving solutions.

    Fulltekst (pdf)
    fulltext
  • 2.
    Doganay, Kivanc
    et al.
    SICS Swedish ICT AB, Sweden; Mälardalen University, Sweden..
    Eldh, Sigrid
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). Ericsson AB, Sweden.
    Afzal, Wasif
    Mälardalen University, Sweden.
    Bohlin, Markus
    SICS Swedish ICT AB, Sweden; Mälardalen University, Sweden.
    Search-Based Testing for Embedded Telecom Software with Complex Input Structures2014Inngår i: Testing Software and Systems (Ictss 2014) / [ed] Merayo, MG & DeOca, EM, Springer, 2014, s. 205-210Konferansepaper (Fagfellevurdert)
    Abstract [en]

    In this paper, we discuss the application of search-based software testing techniques for unit level testing of a real-world telecommunication middleware at Ericsson. Our current implementation analyzes the existing test cases to handle non-trivial variables such as uninitialized pointers, and to discover any setup code that needs to run before the actual test case, such as setting global system parameters. Hill climbing (HC) and (1+1) evolutionary algorithm (EA) metaheuristic search algorithms are used to generate input data for branch coverage. We compare HC, (1+1) EA, and random search with respect to effectiveness, measured as branch coverage, and efficiency, measured as number of executions needed. Difficulties arising from the specialized execution environment and the adaptations for handling these problems are also discussed.

  • 3.
    Eldh, Sigrid
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap. Ericsson AB, Sweden.
    Some researcher considerations when conducting empirical studies in industry2013Inngår i: Conducting Empirical Studies in Industry (CESI), Elsevier, 2013, s. 69-70, artikkel-id 6618476Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Research collaborations must be set up for a win-win relationship, avoiding many hurdles along the way. In this short paper the goal is to identify some considerations when conducting empirical studies in industry. These considerations deal with problem solution approaches, communication focus, unpleasant results, mismatching interpretations and scope, business aspects and some evaluation criteria for a successful collaboration.

  • 4.
    Eldh, Sigrid
    et al.
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap.
    Andersson, Kenneth
    Ermedahl, Andreas
    Wiklund, Kristian
    Towards a Test Automation Improvement Model (TAIM)2014Inngår i: Proceedings - IEEE 7th International Conference on Software Testing, Verification and Validation Workshops, ICSTW 2014, s. 337-342Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    In agile software development, industries are becoming more dependent on automated test suites. Thus, the test code quality is an important factor for the overall system quality and maintainability. We propose a Test Automation Improvement Model (TAIM) defining ten key areas and one general area. Each area should be based on measurements, to fill the gap of existing assessments models. The main contribution of this paper is to provide the outline of TAIM and present our intermediate results and some initial metrics to support our model. Our initial target has been the key area targeting implementation and structure of test code. We have used common static measurements to compare the test code and the source code of a unit test automation suite being part of a large complex telecom subsystem. Our intermediate results show that it is possible to outline such an improvement model and our metrics approach seems promising. However, to get a generic useful model to aid test automation evolution and provide for comparable measurements, many problems still remain to be solved. TAIM can as such be viewed as a framework to guide the research on metrics for test automation artifacts. 

  • 5.
    Eldh, Sigrid
    et al.
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT, Avdelningen för datavetenskap.
    Punnekkat, Sasikumar
    Mälardalens Högskola.
    Synergizing industrial needs and academic research for better software education2012Inngår i: Software Engineering Education based on Real-World Experiences (EduRex), 2012 First International Workshop, IEEE Press, 2012, s. 33-36Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The ubiquity of software is making every industry increasingly dependent on it for achieving their core products' functionality. The complexity in a telecommunication network requires not only thorough understanding of telecommunication per se, but software becomes equally interesting. This is the case with many industries, which rely more and more on software as their key enabler. Industry definitely needs a large number of software engineers with potential to be productive from day one. They are feeling impatient at the academic community for not being pragmatic. At the same time Academic community faces many challenges, which often make them thread a traditional path thus ignoring the industrial needs. We present some of these challenges from both the industrial and academic perspectives. We also present how we established a Master level advanced course on software verification and validation through mutual support and collaboration which became highly successful.

  • 6.
    Eldh, Sigrid
    et al.
    Karlstads universitet, Fakulteten för ekonomi, kommunikation och IT.
    Sundmark, Daniel
    Swedish Institute of Computer Science, Västerås.
    Robustness Testing of Mobile Telecommunication Systems: A Case Study on Industrial Practice and Challenges2012Konferansepaper (Fagfellevurdert)
    Abstract [en]

    Robustness relates to the capability of a system to handle internal and external negative situations and disturbances. Robustness testing is the act of subjecting the system under test to such disturbances in a controlled manner. The objective of this study is to understand how robustness is considered in the development and testing of large-scale telecom systems, to identify the main challenges related to robustness and robustness testing, and to identify potential improvements to the current situation. We performed an exploratory case study of a telecom industry. Data was collected through interviews, study of documentation, and participant observation. Our result is a number of challenges related to robustness testing. The key challenge identified relates to understanding how robustness test can be broken down from a system-level to a low-level perspective. Our conclusion is that the area of robustness test is challenging for large complex systems, where the understanding of how to provoke complex failures and derive a root cause, as well as defining the correct level of robust design in software is not sufficiently explored.

  • 7.
    Hassan, Mahdi Mohammad
    et al.
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).
    Afzal, Wasif
    Mälardalen University.
    Blom, Martin
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013).
    Lindström, Birgitta
    University of Skövde.
    Andler, Sten
    University of Skövde.
    Eldh, Sigrid
    Ericsson AB.
    Testability and Software Robustness: A Systematic Literature Review2015Inngår i: 2015 41st Euromicro Conference on Software Engineering and Advanced Applications, IEEE, 2015, s. 341-348Konferansepaper (Fagfellevurdert)
    Abstract [en]

    The concept of software testability has been researched in several different dimensions, however the relation of this important concept with other quality attributes is a grey area where existing evidence is scattered. The objective of this study is to present a state-of-the-art with respect to issues of importance concerning software testability and an important quality attribute: software robustness. The objective is achieved by conducting a systematic literature review (SLR) on the topic. Our results show that a variety of testability issues are in focus with observability and controllability issues being most researched. Fault tolerance, exception handling and handling external influence are prominent robustness issues in focus.

  • 8.
    Wiklund, Kristian
    et al.
    Ericsson AB, SE-16480 Kista, Sweden.;Malardalen Univ, Sch Innovat Design & Engn, Vasteras, Sweden..
    Sundmark, Daniel
    Malardalen Univ, Sch Innovat Design & Engn, Vasteras, Sweden..
    Eldh, Sigrid
    Karlstads universitet, Fakulteten för hälsa, natur- och teknikvetenskap (from 2013), Institutionen för matematik och datavetenskap (from 2013). Ericsson AB, SE-16480 Kista, Sweden.;Karlstad Univ, Karlstad, Sweden..
    Lundqvist, Kristina
    Malardalen Univ, Sch Innovat Design & Engn, Vasteras, Sweden..
    Impediments for Automated Testing - An Empirical Analysis of a User Support Discussion Board2014Inngår i: 2014 IEEE Seventh International Conference on Software Testing, Verification and Validation, IEEE, 2014, s. 113-122Konferansepaper (Fagfellevurdert)
    Abstract [en]

    To better understand the challenges encountered by users and developers of automatic software testing, we have performed an empirical investigation of a discussion board used for support of a test automation framework having several hundred users. The messages on the discussion board were stratified into problem reports, help requests, development information, and feature requests. The messages in the problem report and help request strata were then sampled and analyzed using thematic analysis, searching for common patterns. Our analysis indicate that a large part of the impediments discussed on the board are related to issues related to the centralized IT environment, and to erroneous behavior connected to the use of the framework and related components. We also observed a large amount of impediments related to the use of software development tools. Turning to the help requests, we found that the majority of the help requests were about designing test scripts and not about the areas that appear to be most problematic. From our results and previous publications, we see a clear need to simplify the use, installation, and configuration of test systems of this type. The problems attributable to software development tools suggest that testers implementing test automation need more skills in handling those tools, than historically has been assumed. Finally, we propose that further research into the benefits of centralization of tools and IT environments, as well as structured deployment and efficient use of test automation, is performed.

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