SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "LAR1:gu ;mspu:(article);lar1:(bth)"

Sökning: LAR1:gu > Tidskriftsartikel > Blekinge Tekniska Högskola

  • Resultat 1-10 av 26
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Afzal, Wasif, et al. (författare)
  • An experiment on the effectiveness and efficiency of exploratory testing
  • 2015
  • Ingår i: Empirical Software Engineering. - Springer. - 1382-3256. ; 20:3, s. 844-878
  • Tidskriftsartikel (refereegranskat)abstract
    • The exploratory testing (ET) approach is commonly applied in industry, but lacks scientific research. The scientific community needs quantitative results on the performance of ET taken from realistic experimental settings. The objective of this paper is to quantify the effectiveness and efficiency of ET vs. testing with documented test cases (test case based testing, TCT). We performed four controlled experiments where a total of 24 practitioners and 46 students performed manual functional testing using ET and TCT. We measured the number of identified defects in the 90-minute testing sessions, the detection difficulty, severity and types of the detected defects, and the number of false defect reports. The results show that ET found a significantly greater number of defects. ET also found significantly more defects of varying levels of difficulty, types and severity levels. However, the two testing approaches did not differ significantly in terms of the number of false defect reports submitted. We conclude that ET was more efficient than TCT in our experiment. ET was also more effective than TCT when detection difficulty, type of defects and severity levels are considered. The two approaches are comparable when it comes to the number of false defect reports submitted.
2.
  • Afzal, Wasif, et al. (författare)
  • Prediction of faults-slip-through in large software projects: An empirical evaluation
  • 2014
  • Ingår i: Software quality journal. - 0963-9314. ; 22:1, s. 51-86
  • Tidskriftsartikel (refereegranskat)abstract
    • A large percentage of the cost of rework can be avoided by finding more faults earlier in a software test process. Therefore, determination of which software test phases to focus improvement work on has considerable industrial interest. We evaluate a number of prediction techniques for predicting the number of faults slipping through to unit, function, integration, and system test phases of a large industrial project. The objective is to quantify improvement potential in different test phases by striving toward finding the faults in the right phase. The results show that a range of techniques are found to be useful in predicting the number of faults slipping through to the four test phases; however, the group of search-based techniques (genetic programming, gene expression programming, artificial immune recognition system, and particle swarm optimization-based artificial neural network) consistently give better predictions, having a representation at all of the test phases. Human predictions are consistently better at two of the four test phases. We conclude that the human predictions regarding the number of faults slipping through to various test phases can be well supported by the use of search-based techniques. A combination of human and an automated search mechanism (such as any of the search-based techniques) has the potential to provide improved prediction results.
3.
  • Alahyari, Hiva, et al. (författare)
  • A study of value in agile software development organizations
  • 2017
  • Ingår i: Journal of Systems and Software. - 0164-1212. ; 125, s. 271-288
  • Tidskriftsartikel (refereegranskat)abstract
    • The Agile manifesto focuses on the delivery of valuable software. In Lean, the principles emphasise value, where every activity that does not add value is seen as waste. Despite the strong focus on value, and that the primary critical success factor for software intensive product development lies in the value domain, no empirical study has investigated specifically what value is. This paper presents an empirical study that investigates how value is interpreted and prioritised, and how value is assured and measured. Data was collected through semi-structured interviews with 23 participants from 14 agile software development organisations. The contribution of this study is fourfold. First, it examines how value is perceived amongst agile software development organisations. Second, it compares the perceptions and priorities of the perceived values by domains and roles. Third, it includes an examination of what practices are used to achieve value in industry, and what hinders the achievement of value. Fourth, it characterises what measurements are used to assure, and evaluate value-creation activities.
  •  
4.
  • Aurum, Aybüke, et al. (författare)
  • Increasing the understanding of effectiveness in software inspections using published data sets
  • 2005
  • Ingår i: JOURNAL OF RESEARCH AND PRACTICE IN INFORMATION TECHNOLOGY. - 1443-458X. ; 37:3, s. 253-266
  • Tidskriftsartikel (refereegranskat)abstract
    • Since its inception into software engineering software inspection has been viewed as a cost-effective way of increasing software quality. Despite this many questions remain unanswered regarding, for example, ideal team size or cost effectiveness. This paper addresses some of these questions by performing an analysis using 30 published data sets from empirical experiments of software inspections. The main question is concerned with determining a suitable team size for software inspections. The effectiveness of different team sizes is also studied. Furthermore, the differences in mean effectiveness between different team sizes are investigated based on the inspection environmental context, document types and reading technique. It is concluded that it is possible to choose a suitable team size based on the effectiveness of inspections. This can be used as a tool to assist in the planning of inspections. A particularly interesting result is that variation in the effectiveness between different teams is considerably higher for certain types of documents than for others. Our findings contain important information for anyone planning, controlling or managing software inspections.
  •  
5.
  • Edison, Henry, et al. (författare)
  • Towards innovation measurement in the software industry
  • 2013
  • Ingår i: Journal of Systems and Software. - Elsevier. - 0164-1212. ; 86:5, s. 1390-1407
  • Tidskriftsartikel (refereegranskat)abstract
    • In today's highly competitive business environments with shortened product and technology life cycle, it is critical for software industry to continuously innovate. This goal can be achieved by developing a better understanding and control of the activities and determinants of innovation. Innovation measurement initiatives assess innovation capability, output and performance to help develop such an understanding. This study explores various aspects relevant to innovation measurement ranging from definitions, measurement frameworks and metrics that have been proposed in literature and used in practice. A systematic literature review followed by an online questionnaire and interviews with practitioners and academics were employed to identify a comprehensive definition of innovation that can be used in software industry. The metrics for the evaluation of determinants, inputs, outputs and performance were also aggregated and categorised. Based on these findings, a conceptual model of the key measurable elements of innovation was constructed from the findings of the systematic review. The model was further refined after feedback from academia and industry through interviews.
6.
  • Erovic Ademovski, Seida, 1983-, et al. (författare)
  • Comparison of different treatment modalities for oral halitosis
  • 2012
  • Ingår i: Acta Odontologica Scandinavica. - 0001-6357. ; 70:3, s. 224-233
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives. To assess the effects on intra-oral halitosis by a mouth rinse containing zinc acetate (0.3%) and chlorhexidine diacetate (0.025%) with and without adjunct tongue scraping. Materials and methods. Twenty-one subjects without a diagnosis of periodontitis were randomized in a cross-over clinical trial. Organoleptic scores (OLS) were assessed to define intra-oral halitosis by total volatile sulfur compound (T-VSC) measurements and by gas chromatography. Results. Twenty-one subjects with a mean age of 45.7 years (SD: ±13.3, range: 21–66). The OLS were significantly lower following active rinse combined with tongue scraping (p < 0.001) at all time points. Immediately after, at 30 min, and at day 14, the T-VSC values were lower in the active rinse sequence than in the negative rinse sequence (p < 0.001, p < 0.001 and p < 0.05, respectively). At 30 min and at day 14, the hydrogen sulfide (H2S) and methyl mercaptan (MM) values were lower in the active rinse sequence compared to the inactive rinse sequence (p < 0.001). The inactive rinse sequence with tongue scraping reduced T-VSC at 30 min (p < 0.001) but not at 14 days. Similar reductions in T-VSC, H2S and MM were found in the active rinse sequence with or without tongue scraping. Conclusion. The use of a tongue scraper did not provide additional benefits to the active mouth rinse, but reduced OLS and tongue coating index.
  •  
7.
  • Erovic Ademovski, Seida, et al. (författare)
  • The effect of different mouth rinse products on intra-oral halitosis
  • 2016
  • Ingår i: International Journal of Dental Hygiene. - 1601-5029. ; 14:2, s. 117-123
  • Tidskriftsartikel (refereegranskat)abstract
    • AIM: To evaluate the effect of different mouth rinses 12 h after rinsing on genuine intra-oral halitosis.MATERIALS AND METHODS: Twenty-four adults with halitosis were included in a double-blind, crossover, randomized clinical trial. Halitosis was evaluated 12 h after rinsing with placebo and five mouth rinse products containing zinc acetate and chlorhexidine diacetate; zinc lactate, chlorhexidine and cetylpyridinium chloride; zinc acetate and chlorhexidine diacetate with reduced amounts of mint and menthol; zinc chloride and essential oil; and chlorine dioxide using the organoleptic method and a gas chromatograph. Test periods were separated by 1 week.RESULTS: Hydrogen sulphide (H2 S), methyl mercaptan (MM) and the organoleptic scores (OLS) were significantly reduced 12 h following rinsing with all substances compared to placebo (P < 0.05). H2 S was more effectively reduced after rinsing with zinc acetate and chlorhexidine diacetate and zinc acetate and chlorhexidine diacetate with reduced amounts of mint and menthol compared to rinsing with zinc chloride and essential oil (P < 0.05), and significantly lower values of MM were obtained after rinsing with zinc acetate and chlorhexidine diacetate compared to zinc lactate, chlorhexidine and cetylpyridinium chloride (P < 0.05). The percentage effectively treated individuals (H2 S (<112 ppb), MM (<26 ppb) and OLS score <2) varied from 58% percentage (zinc acetate and chlorhexidine diacetate) to 26% (zinc chloride and essential oil).CONCLUSION: All treatments resulted in reduction in halitosis 12 h after rinsing compared to placebo. H2 S and MM were most effectively reduced by zinc acetate and chlorhexidine diacetate.
  •  
8.
  • Erovic Ademovski, Seida, 1983-, et al. (författare)
  • The short-term treatment effects on the microbiota at the dorsum of the tongue in intra-oral halitosis patients : a randomized clinical trial
  • 2013
  • Ingår i: Clinical Oral Investigations. - 1432-6981. ; 17:2, s. 463-473
  • Tidskriftsartikel (refereegranskat)abstract
    • Objectives This study aims to assess the effects of rinsing with zinc- and chlorhexidine-containing mouth rinse with or without adjunct tongue scraping on volatile sulfur compounds (VSCs) in breath air, and the microbiota at the dorsum of the tongue. Material and methods A randomized single-masked controlled clinical trial with a cross-over study design over 14 days including 21 subjects was performed. Bacterial samples from the dorsum of the tongue were assayed by checkerboard DNA–DNA hybridization. Results No halitosis (identified by VSC assessments) at day 14 was identified in 12/21 subjects with active rinse alone, in 10/21with adjunct use of tongue scraper, in 1/21 for negative control rinse alone, and in 3/21 in the control and tongue scraping sequence. At day 14, significantly lower counts were identified only in the active rinse sequence ( p < 0.001) for 15/78 species including , Fusobacterium sp., Porphyromonas gingivalis , Pseudomonas aeruginosa , Staphylococcus aureus , and Tannerella forsythia . A decrease in bacteria from baseline to day 14 was found in successfully treated subjects for 9/74 species including: P. gingivalis , Prevotella melaninogenica , S. aureus , and Treponema denticola . Baseline VSC scores were correlated with several bacterial species. The use of a tongue scraper combined with active rinse did not change the levels of VSC compared to rinsing alone. Conclusions VSC scores were not associated with bacterial counts in samples taken from the dorsum of the tongue. The active rinse alone containing zinc and chlorhexidine had effects on intra-oral halitosis and reduced bacterial counts of species associated with malodor. Tongue scraping provided no beneficial effects on the microbiota studied. Clinical relevance Periodontally healthy subjects with intra-oral halitosis benefit from daily rinsing with zinc- and chlorhexidine-containing mouth rinse.
  •  
9.
  • Gren, Lucas, et al. (författare)
  • Group development and group maturity when building agile teams: A qualitative and quantitative investigation at eight large companies
  • 2017
  • Ingår i: Journal of Systems and Software. - 0164-1212. ; 124, s. 104-119
  • Tidskriftsartikel (refereegranskat)abstract
    • The agile approach to projects focuses more on close-knit teams than traditional waterfall projects, which means that aspects of group maturity become even more important. This psychological aspect is not much researched in connection to the building of an “agile team.” The purpose of this study is to investigate how building agile teams is connected to a group development model taken from social psychology. We conducted ten semi-structured interviews with coaches, Scrum Masters, and managers responsible for the agile process from seven different companies, and collected survey data from 66 group-members from four companies (a total of eight different companies). The survey included an agile measurement tool and the one part of the Group Development Questionnaire. The results show that the practitioners define group developmental aspects as key factors to a successful agile transition. Also, the quantitative measurement of agility was significantly correlated to the group maturity measurement. We conclude that adding these psychological aspects to the description of the “agile team” could increase the understanding of agility and partly help define an “agile team.” We propose that future work should develop specific guidelines for how software development teams at different maturity levels might adopt agile principles and practices differently.
  •  
10.
  • Holmgren, Johan, et al. (författare)
  • Modelling modal choice effects of regulation on low-sulphur marine fuels in Northern Europe
  • 2014
  • Ingår i: Transportation Research Part D: Transport and Environment. - 1361-9209. ; 28
  • Tidskriftsartikel (refereegranskat)abstract
    • The implementation of MARPOL Annex VI in the North and Baltic Sea Sulphur Emission Control Area (SECA) has raised economic concerns among shippers and shipowners, as well as spurred policymakers to appeal to various interests, such as citizen health, export industry competitiveness, and consumer prices. To justify their cases, policymakers and stakeholders have commissioned various agencies to monitor the implementation’s effects upon sustainability, especially regarding a potential modal shift from sea to road transport. This article thus reviews some of these commissioned studies in order to analyse the effects of the implementation and the possibility of modal shift. It also provides an agent-based simulation study of route choice for comparatively high-value cargo from Lithuania in the east to the United Kingdom in the west. Ultimately, the results of our TAPAS study do not provide concrete evidence supporting a modal shift from sea to road transport and indeed, they indicate that a shift is unlikely to occur.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 26
Åtkomst
fritt online (10)
Typ av publikation
Typ av innehåll
refereegranskat (25)
övrigt vetenskapligt (1)
Författare/redaktör
Torkar, Richard, (12)
Feldt, Robert, (4)
Afzal, Wasif, (3)
Gorschek, Tony (3)
Kuzniarz, Ludwik (2)
Renvert, Stefan, 195 ... (2)
visa fler...
Persson, G. Rutger, (2)
Wohlin, Claes, (2)
Staron, Miroslaw (2)
Lingström, Peter, (2)
Woxenius, Johan, (2)
Willman, Ania (2)
Pilhammar, Ewa (2)
Poulding, Simon, (2)
Briand, Lionel (2)
Öhlen, J, (2)
Eiman Johansson, Mar ... (2)
Erovic Ademovski, Se ... (2)
Winkel, Edwin, (2)
Tangerman, Albert, (2)
Marculescu, Bogdan (2)
Johansson, Maria Eim ... (2)
Berg, L, (1)
Persson, C (1)
Renvert, Stefan (1)
Ademovski, Seida Ero ... (1)
Ghazi, Nauman, (1)
Itkonen, Juha, (1)
Andrews, Anneliese, (1)
Bhatti, Khurram, (1)
Ghazi, Ahmad Nauman, (1)
Alahyari, Hiva, (1)
Berntsson Svensson, ... (1)
Svensson, R. B. (1)
Feldt, Robert, 1972- ... (1)
Skärsäter, Ingela, 1 ... (1)
Petersen, Kai, (1)
Davidsson, Paul (1)
Lingstrom, P (1)
Aurum, Aybüke (1)
Lepp, M (1)
Engström, Å (1)
Petersson, Håkan (1)
Lingström, P (1)
Khalaf, Azzam (1)
Holmgren, Johan, (1)
Persson, Jan A. (1)
Lindström, I. (1)
Pilhammar Andersson, ... (1)
Ramstedt, Linda (1)
visa färre...
Lärosäte
Göteborgs universitet (26)
Chalmers tekniska högskola (8)
Malmö högskola (3)
Högskolan Kristianstad (3)
Mälardalens högskola (3)
visa fler...
Mittuniversitetet (1)
Luleå tekniska universitet (1)
Ersta Sköndal Bräcke högskola (1)
Umeå universitet (1)
Högskolan i Borås (1)
Karlstads universitet (1)
Högskolan i Halmstad (1)
visa färre...
Språk
Engelska (25)
Svenska (1)
Forskningsämne (UKÄ/SCB)
Naturvetenskap (19)
Medicin och hälsovetenskap (7)
Teknik (5)
Samhällsvetenskap (4)

År

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy