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Now showing 1 - 10 of 27
  • Conference Object
    Citation - Scopus: 4
    Analysis of B2c Mobile Application Characteristics and Quality Factors Based on Iso 25010 Quality Model
    (Springer Verlag, 2014) Yildiz,E.; Bilgen,S.; Tokdemir,G.; Cagiltay,N.E.; Erturan,Y.N.
    The number of mobile applications in mobile market has rapidly increased as new technology and new devices are emerging at remarkable speed which shows mobile applications have an important role in every field of our life. Among those, even some of the mobile applications have a long time life as end-users use those effectively, some of them fail to do so that prevents the companies to reach from their aim. The main reason of that problem results from the quality of the mobile applications. Although there are some methods and metrics to analyze the quality of mobile applications, they have lack of criteria since they are mostly based on ISO 9126 quality model factors which are invalid anymore. This study aims to analyze both mobile commerce applications' characteristics and quality factors and sub-factors based on ISO 25010 product quality model. Accordingly a quality model is proposed by analysis performed by a group of experts from the mobile software development area. The results of this study aims to help developing more qualified and effective mobile applications from developer perspective. © 2014 Springer International Publishing.
  • Conference Object
    A Model for Measuring Cognitive Complexity of Software
    (Springer Verlag, 2008) Misra,S.; Akman,I.
    This paper proposes a model for calculating cognitive complexity of a code. This model considers all major factors responsible for (cognitive) complexity. The practical applicability of the measure is evaluated through experimentation, test cases and comparative study. © 2008 Springer-Verlag Berlin Heidelberg.
  • Article
    Steady mixed convection in a heated lid-driven square cavity filled with a fluid-saturated porous medium
    (Springer Verlag, 2015) Pekmen,B.; Tezer-Sezgin,M.
    Steady mixed convection flow in a porous square cavity with moving side walls is studied numerically using the dual reciprocity boundary element method (DRBEM). The equations governing the two-dimensional, steady, laminar mixed convection flow of an incompressible fluid are solved for various values of parameters as Darcy (Da), Grashof (Gr), and Prandtl (Pr) numbers. The results are given in terms of vorticity contours, streamlines and isotherms. Further, average Nusselt number variations with respect to the problem parameters are also presented. The fluid flows slowly as Da decreases since the permeability of the medium decreases, and the increase in Grashof number causes the flow to pass to the natural convective behavior. DRBEM has the advantage of using considerably small number of grid points due to the boundary only nature of the method. This provides the numerical procedure computationally cheap and efficient. © Springer International Publishing Switzerland 2015.
  • Conference Object
    Citation - Scopus: 1
    A Software Metric for Python Language
    (Springer Verlag, 2010) Misra,S.; Cafer,F.
    There are many metrics for evaluating the quality of codes written in different programming languages. However, no efforts have been done to propose metrics for Python, which is an important and useful language especially for the software development for the embedded systems. In this present work, we are trying to investigate all the factors, which are responsible for increasing the complexity of code written in Python language. Accordingly, we have proposed a unified metric for this language. Practical applicability of the metric is demonstrated on a case study. © 2010 Springer-Verlag Berlin Heidelberg.
  • Conference Object
    Citation - Scopus: 23
    Modified cognitive complexity measure
    (Springer Verlag, 2006) Misra,S.
    In cognitive functional size measure, the functional size is proportional to weighted cognitive complexity of all internal BCS's and number of input and output. This paper proposes the modification in cognitive functional size complexity measure. The proposed complexity measure is proportional to total occurrence of operators and operands and all internal BCS's. The operators and operands are equally important in design consideration. Thus, the contribution of the operators, operands and cognitive aspects complete the definition of a complexity measure in terms of cognitive. Accordingly, a new formula is developed for calculating the modified cognitive complexity measure. An attempt has also been made to evaluate modified cognitive complexity measure in terms of nine Weyuker's properties, through examples. It has been found that seven of nine Weyuker's properties have been satisfied by the modified cognitive complexity measure and hence establishes as a well-structured one. © Springer-Verlag Berlin Heidelberg 2006.
  • Conference Object
    Citation - Scopus: 3
    Achieving Success in Supply Chain Management Software by Agility
    (Springer Verlag, 2007) Mishra,D.; Mishra,A.
    Supply chain management is comprehensive software. Due to its scope and unpredictable, complex and unstable requirements, it is not possible to develop it with predictable development process models. Agile methodologies are targeted towards such kind of problems that involves change and uncertainty, and are adaptive rather than predictive. The aim of this paper is to analyze the management and development methodologies used in development of supply chain management software. This paper shows how to overcome risks and handicaps in each development phase of a complex inventive project. It also provides a set of guidelines regarding how the agile methods may be adopted, combined and used in these kinds of projects. © Springer-Verlag Berlin Heidelberg 2007.
  • Conference Object
    Citation - Scopus: 4
    Creating Awareness of Sleep-Wake Hours by Gamification
    (Springer Verlag, 2016) Ilhan,E.; Sener,B.; Hacihabiboğlu,H.
    Gamification can be used to motivate people to carry out hard-toperform tasks. It can help in changing undesirable habits and in improving a person’s subjective well-being. Sleep-wake behaviors are important determinants of day-to-day well-being. This study aims to find out whether it is possible to modify sleep-wake habits using gamification. To this end, a gamified alarm clock app, Sleepy Bird, was designed and tested in a user study with thirteen participants using gamified and thirteen participants using non-gamified versions for two weeks. The results indicate that the participants of the gamified version were more motivated to start the day at required times than the participants of the non-gamified version. The participants of the gamified version were also observed to have made desirable modifications to their sleep-wake habits. © Springer International Publishing Switzerland 2016.
  • Conference Object
    Citation - Scopus: 4
    Bicriteria Scheduling Problem on the Two-Machine Flowshop Using Simulated Annealing
    (Springer Verlag, 2010) Mesgarpour,M.; Kirkavak,N.; Ozaktas,H.
    Real life scheduling problems require the decision maker to consider a number of criteria before arriving at any decision. The trade-offs involved in considering several different criteria provide useful insights for the decision maker. Surprisingly, research in the field of multi-objective scheduling has been quite limited when compared to research in single criterion scheduling. The subject of this paper is the bicriteria scheduling problem in a two-machine flowshop. The objective is to find a job sequence that minimizes sum of weighted total flowtime and total tardiness. Based on the problem characteristics, a Simulated Annealing algorithm is developed. The proposed metaheuristic is compared with the branch and bound enumeration algorithm of the integer programming model as well as a modified version of the well-known NEH algorithm. During these evaluations, the experimental design approach and careful statistical analysis have been used to validate the effectiveness of the simulated annealing approach. © 2010 Springer-Verlag Berlin Heidelberg.
  • Conference Object
    Citation - Scopus: 2
    A Cognitive Evaluation for Meetings in Software Development Process
    (Springer Verlag, 2009) Misra,S.; Akman,I.
    Software development includes number of different type of meetings in the whole development process. The cognitive activities also play an important role in decision making activities in these meetings since they are carried out by human being. In this paper, we evaluated the relevance of meetings in different phases of the software development process with reference to cognitive aspects. © 2009 Springer Berlin Heidelberg.
  • Article
    Citation - Scopus: 2
    Steady Mixed Convection in a Heated Lid-Driven Square Cavity Filled With a Fluid-Saturated Porous Medium
    (Springer Verlag, 2015) Pekmen,B.; Pekmen, Bengisen; Tezer-Sezgin,M.; Pekmen, Bengisen; Mathematics; Mathematics
    Steady mixed convection flow in a porous square cavity with moving side walls is studied numerically using the dual reciprocity boundary element method (DRBEM). The equations governing the two-dimensional, steady, laminar mixed convection flow of an incompressible fluid are solved for various values of parameters as Darcy (Da), Grashof (Gr), and Prandtl (Pr) numbers. The results are given in terms of vorticity contours, streamlines and isotherms. Further, average Nusselt number variations with respect to the problem parameters are also presented. The fluid flows slowly as Da decreases since the permeability of the medium decreases, and the increase in Grashof number causes the flow to pass to the natural convective behavior. DRBEM has the advantage of using considerably small number of grid points due to the boundary only nature of the method. This provides the numerical procedure computationally cheap and efficient. © Springer International Publishing Switzerland 2015.