209,540 research outputs found

    INFORMATION SYSTEM OF NEW STUDENT ACCEPTANCE WEB BASED BY PHP AND SQL

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    This research aims to produce software the Information System of New Student Acceptance Web Based by PHP and SQL that is able to manage the implementation of New Student Acceptance that is registration, selection, journalizing, announcement, and re-registration. This research also determined the level of proprietary software that has been made. Type of this research is Research and Development. The method of software development is using Waterfall Model. Software testing is done through whitebox and black-box testing, and alpha and beta testing by experts and users. Instruments using the Quality Factor McCall as indicator to determine the level of proprietary software with measurement scales using Likert Scale. Instrument testing is done through validity and reliability test. The techniques of data collection is using interviews and questionnaires. Analysis is using quantitative descriptive analysis. The results of this research showed that the Information System of New Student Acceptance Web Based by PHP and SQL is able to manage the implementation of New Student Acceptance that is registration, selection, journalizing, announcement, and re-registration. The assessment by experts indicates that this software is very worthy in terms of correctness and reliability, while in terms of integrity and usability is worthy. The assessment by teachers indicates that this software is very worthy in terms of correctness, reliability, and integrity, while in terms of usability is worthy. The assessment by students indicates that this software is worthy in terms of correctness and usability, in terms of reliability is very worthy, and in terms of integrity is worthy enough. Keywords : Information System, New Student, Web Based, Web, PHP, SQL

    Professional self-efficacy scale for information and computer technology teachers: validity and reliability study

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    This study aims at developing a valid and reliable scale to measure information and communication technology (ICT) teachers' self-efficacy related to the Turkish national framework of ICT competencies. For statistical procedures, data were respectively analyzed with exploratory factor analysis (EFA) and confirmatory factor analysis (CFA). Furthermore, test-retest procedure was carried out to confirm the time invariance of the scale. EFA results revealed that the scale's seven-factor structure accounts for 65.90 percent of total variance. CFA results produced an acceptable statistical support for model-data fit between the observed item scores and the seven-dimension scale structure (X-2/df = 1.98, RMSEA = .073, CFI = .86). The standardized regression weights between the latent and observed variables ranged from .57 to .89 and Cronbach's alpha coefficient of the scale sub-dimensions ranged from .80 to .88. Besides, the item-scale correlations varied between values of .53 and .79. As a result, the developed scale is a likert questionnaire and composed of 33 five-point items with seven sub-dimensions

    Quality-aware model-driven service engineering

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    Service engineering and service-oriented architecture as an integration and platform technology is a recent approach to software systems integration. Quality aspects ranging from interoperability to maintainability to performance are of central importance for the integration of heterogeneous, distributed service-based systems. Architecture models can substantially influence quality attributes of the implemented software systems. Besides the benefits of explicit architectures on maintainability and reuse, architectural constraints such as styles, reference architectures and architectural patterns can influence observable software properties such as performance. Empirical performance evaluation is a process of measuring and evaluating the performance of implemented software. We present an approach for addressing the quality of services and service-based systems at the model-level in the context of model-driven service engineering. The focus on architecture-level models is a consequence of the black-box character of services

    Easylife: the data reduction and survey handling system for VIPERS

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    We present Easylife, the software environment developed within the framework of the VIPERS project for automatic data reduction and survey handling. Easylife is a comprehensive system to automatically reduce spectroscopic data, to monitor the survey advancement at all stages, to distribute data within the collaboration and to release data to the whole community. It is based on the OPTICON founded project FASE, and inherits the FASE capabilities of modularity and scalability. After describing the software architecture, the main reduction and quality control features and the main services made available, we show its performance in terms of reliability of results. We also show how it can be ported to other projects having different characteristics.Comment: pre-print, 17 pages, 4 figures, accepted for publication in Publications of the Astronomical Society of the Pacifi

    Using the ISO/IEC 9126 product quality model to classify defects : a Controlled Experiment

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    Background: Existing software defect classification schemes support multiple tasks, such as root cause analysis and process improvement guidance. However, existing schemes do not assist in assigning defects to a broad range of high level software goals, such as software quality characteristics like functionality, maintainability, and usability. Aim: We investigate whether a classification based on the ISO/IEC 9126 software product quality model is reliable and useful to link defects to quality aspects impacted. Method: Six different subjects, divided in two groups with respect to their expertise, classified 78 defects from an industrial web application using the ISO/IEC 9126 quality main characteristics and sub-characteristics, and a set of proposed extended guidelines. Results: The ISO/IEC 9126 model is reasonably reliable when used to classify defects, even using incomplete defect reports. Reliability and variability is better for the six high level main characteristics of the model than for the 22 sub- characteristics. Conclusions: The ISO/IEC 9126 software quality model provides a solid foundation for defect classification. We also recommend, based on the follow up qualitative analysis performed, to use more complete defect reports and tailor the quality model to the context of us
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