1,720,955 research outputs found
An industrial study of effort estimation in mobile app development using agile processes
No full textEstimates of software effort, size and cost are essential to a project manager, in order to plan and manage a project to prevent it from failing. The planning and development of mobile apps are unlike traditional software applications due to the characteristics of the mobile environment, including high autonomy requirements, market competition and many other constraints. The aim of this study is to investigate the current state of practice relating to the essential factors and optimal techniques for effort estimation that help and support an Agile team to give reliable estimates for developing a mobile app task. The results of a Systematic Literature Review (SLR) of effort estimation models in mobile app development are presented; this is followed by a summary of estimation techniques used across mobile apps. In particular, the focus in the SLR is on the software estimation models applicable to the Agile Software Development (ASD) process. From the SLR, some research gaps are suggested, along with possible future work on mobile effort estimation techniques in ASD. Following this, the research aim and objectives are provided for this study, as well as appropriate research methods, strategies, plans and designs. In this study 20 interviews were conducted in 18 different organisations, consisting of both structured and non-structured questions. The result revealed that Expert Judgment and Planning Poker were the most used estimation techniques in the organisations. Some challenges and issues were raised and discussed around these techniques. The results, in addition, revealed 68 comprehensive factors and appropriate techniques that could be used in effort estimation for development of a mobile app. A proposed effort estimation technique has been constructed from the interviews. Moreover, the study presents case studies in three companies that examined and evaluated their current estimation techniques. It proposes and has validated an estimation technique to enhance the accuracy of existing techniques. The study presents the effectiveness of the estimation factors/predictors in supporting a development team to manage, estimate and create subtasks for their user storie
An industrial investigation into effort estimation predictors for mobile app development in agile processes
No full textEffort estimation is essential for all development teams in order to ensure the user's story for the software project is delivered on time, boxed released. The characteristics of mobile apps make app development different from other traditional software. There are many challenges in developing a mobile app that could lead to inaccurate estimation of user stories. Therefore, the aim of this paper is to provide a comprehensive investigation into the factors that affect the accuracy of effort estimation. The effort estimation factors have been collected from previous studies and validated with 20 practitioners across 18 organisations in the development field of mobile applications
A case study validation of the Pair-estimation technique in effort estimation of mobile app development using agile processes
No full textIn the software development process, effort estimation is essential and a critical phase for the development team in order to ensure that development tasks will be delivered within the planned time. This paper presents a confirmatory case study in an IT company, which examined its current estimation techniques and its process in the context of mobile app development in the Agile process. Moreover, the study provides, and has validated, a proposed estimation technique, namely Pair-estimation, in order to enhance the accuracy of the existing technique. This study, in addition, presents the effectiveness of estimation factors/predictors in supporting the development team to manage, estimate and create subtasks for their user stories
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
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