3,374 research outputs found

    Detecting Functional Requirements Inconsistencies within Multi-teams Projects Framed into a Model-based Web Methodology

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    One of the most essential processes within the software project life cycle is the REP (Requirements Engineering Process) because it allows specifying the software product requirements. This specification should be as consistent as possible because it allows estimating in a suitable manner the effort required to obtain the final product. REP is complex in itself, but this complexity is greatly increased in big, distributed and heterogeneous projects with multiple analyst teams and high integration between functional modules. This paper presents an approach for the systematic conciliation of functional requirements in big projects dealing with a web model-based approach and how this approach may be implemented in the context of the NDT (Navigational Development Techniques): a web methodology. This paper also describes the empirical evaluation in the CALIPSOneo project by analyzing the improvements obtained with our approach.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2015-71938-RED

    An Extension of NDT to Model Entity Reconciliation Problems

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    Within the development of software systems, the development of web applications may be one of the most widespread at present due to the great number of advantages they provide such as: multiplatform, speed of access or the not requiring extremely powerful hardware among others. The fact that so many web applications are being developed, makes grotesque the volume of information that it is generated daily. In the management of all this information, it appears the entity reconciliation problem, which is to identify objects referring to the same real-world entity. This paper proposes to give a solution to this problem through a web perspective. To this end, the NDT methodology has been taken as a reference and has been extended adding new activities, artefacts and documents to cover this problem.Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2016-76956-C3-2-RMinisterio de Economía y Competitividad TIN2015-71938-RED

    A Model-Driven Approach for Business Process Management

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    The Business Process Management is a common mechanism recommended by a high number of standards for the management of companies and organizations. In software companies this practice is every day more accepted and companies have to assume it, if they want to be competitive. However, the effective definition of these processes and mainly their maintenance and execution are not always easy tasks. This paper presents an approach based on the Model-Driven paradigm for Business Process Management in software companies. This solution offers a suitable mechanism that was implemented successfully in different companies with a tool case named NDTQ-Framework.Ministerio de Educación y Ciencia TIN2010-20057-C03-02Junta de Andalucía TIC-578

    Estimation of specific cutting energy in an S235 alloy for multi-directional ultrasonic vibration-assisted machining using the Finite Element Method

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    The objective of this work is to analyze the influence of the vibration-assisted turning process on the machinability of S235 carbon steel. During the experiments using this vibrational machining process, the vibrational amplitude and frequency of the cutting tool were adjusted to drive the tool tip in an elliptical or linear motion in the feed direction. Furthermore, a finite element analysis was deployed to investigate the mechanical response for different vibration-assisted cutting conditions. The results show how the specific cutting energy and the material’s machinability behave when using different operational cutting parameters, such as vibration frequency and tool tip motion in the x-axis, y-axis, and elliptical (x-y plane) motion. Then, the specific cutting energy and material’s machinability are compared with a conventional turning process, which helps to validate the finite element method (FEM) for the vibration-assisted process. As a result of the operating parameters used, the vibration-assisted machining process leads to a machinability improvement of up to 18% in S235 carbon steel. In particular, higher vibration frequencies were shown to increase the material’s machinability due to the specific cutting energy decrease. Therefore, the finite element method can be used to predict the vibration-assisted cutting and the specific cutting energy, based on predefined cutting parameters.Peer ReviewedPostprint (published version

    Characterizing and evaluating the quality of software process modeling language: Comparison of ten representative model-based languages

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    Software organizations are very conscious that deployments of well-defined software processes improve software product development and its quality. Over last decade, many Software Process Modeling Languages (SPMLs) have been proposed to describe and manage software processes. However, each one presents advantages and disadvantages. The main challenge for an organization is to choose the best and most suitable SPML to meet its requirements. This paper proposes a Quality Model (QM) which has been defined conforms to QuEF (Quality Evaluation Framework). This QM allows to compare model-based SPMLs and it could be used by organizations to choose the most useful model-based SPML for their particular requirements. This paper also instances our QM to evaluate and compare 10 representative SPMLs of the various alternative approaches (metamodel-level approaches; SPML based on UML and approaches based on standards). Finally, this paper concludes there are many model-based proposals for SPM, but it is very difficult to establish with could be the commitment to follow. Some non-considered aspects until now have been identified (e.g., validation within enterprise environments, friendly support tools, mechanisms to carry out continuous improvement, mechanisms to establish business rules and elements for software process orchestrating).Ministerio de Economía y Competitividad TIN2016-76956-C3-2-R (POLOLAS

    Cibermedios nativos españoles: explorando modelos de rentabilidad

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    Online media are undergoing a process of change in both production and distribution systems, in the role of audiences, in journalistic practices and in business models. In the case of online media which exclusively operate in the web, with no print of broadcast matrix, economic viability is even more complicated. This paper analyses the business models of three native online media in Spain: Bottup, Periodismohumano and Somos Malasaña. The conclusions outline their strengths and weaknesses, as well as the difficulties for the success of these online initiatives

    Fonts i protagonistes de la informació en la televisió de proximitat. El cas del Tele Elx

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    Following the process of regulation of local digital terrestrial television in Spain, some of the academic research has focused on the beleaguered sector of the so-called proximity television. Although some of the studies go back to the eighties, most of the research deals with historicist or legislative issues, not taking into account other aspects such as the content and programming of local broadcasters. This paper presents the case of Tele Elx, a local television channel born in 1987 in Elche, which we regard as a paradigm of the evolution of proximity television. Our objective is to analyze its news sources and the main actors in its newscasts. We have carried out a content analysis of several samples of its prime-time newscast, Tele nit, which has been broadcasted from its launch. The sample includes 35 newscasts, from 1991 to 2015, which allow us to diachronically carry out an analysis of the evolution of news in local television in Spain.Arran de la regulació de la televisió digital terrestre local (TDT-L) a Espanya s'ha reactivat l'atenció investigadora sobre el maltractat sector de la televisió de proximitat. Tot i que els estudis es remunten als anys huitanta, la majoria versen sobre aspectes historicistes o legislatius i menyspreen altres enfocaments sobre l'oferta de programació i continguts d'aquestes televisions. Aquest article presenta el cas de Tele Elx, un canal d'àmbit local nascut el 1987 a Elx i que considerem que és un paradigma de l'evolució de les televisions de proximitat. El propòsit és conèixer-ne les fonts d'informació i els protagonistes de les seues notícies. Per a això s'han realitzat mostres selectives en el seu informatiu capdavanter, Tele nit, que s'emet ininterrompudament des dels seus inicis. La mostra abasta trenta-cinc noticiaris, del 1991 al 2015, que permeten fer una anàlisi diacrònica de la progressió dels informatius locals en televisions de petita escala

    ALAMEDA Ecosystem: Centering Efforts in Software Testing Development

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    One of the most important and critical aspects to improve the quality assurance in software is to improve the testing process by utilizing techniques and tools, which will enhance the software testing process, making it more effective and efficient. This chapter presents ALAMEDA ecosystem, a software package that centers its efforts in software testing development and is a result from a real-world project. ALAMEDA provides support to lifecycles focused on the generation, implementation, and testing organization from the earliest stages of software development. In addition, the ecosystem provides an environment of rating the degree of compliance of organizations with the International Standard for Testing ISO/IEC-29119. It is proposed as a tool to use during the various iterations that may occur in an agile software development process

    Adaptación del currículum ordinario de Educación Física en Educación Primaria y propuesta metodológica para alumnado escolarizado en centros de Educación Especial

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    This work has been developed with two main goals: a) to adapt the current curriculum in the Autonomous Community of Aragon in Primary Education to the characteristics of the students who attend Special Education schools; b) to develop a methodology in different phases to work with them. These students present different diagnoses: autism spectrum disorder, Down syndrome, cerebral palsy, degenerative diseases and generalized disorder of unspecified development. Furthermore, this work has been developed on the necessity of implement activities programmed in accordance with ordinary current curriculum, because we have barely found information about the adaptation of the regular curriculum of Physical Education. Similarly, in the Spanish context there is a lack of methodological proposals to work with this type of student in the Physical Education classes. Thereby, we think that the methodological guidelines offered here may help teachers to adapt their didactics intervention and activities to their pupils' characteristics and needs.El presente trabajo se ha desarrollado con dos objetivos: a) adaptar el curriculum vigente en la Comunidad Autónoma de Aragón en la etapa de Educación Primaria a las características del alumnado integrado en centros específicos de Educación especial; b) concretar una propuesta metodológica en diferentes fases para trabajar en Educación Física con alumnado integrado en centros de educación especial. El alumnado en este tipo de centros presenta diferentes diagnósticos: trastorno del espectro autista, síndrome de Down, parálisis cerebral, enfermedades degenerativas y trastorno generalizado del desarrollo no especificado. Por tanto, el trabajo se fundamenta en la necesidad de implementar actividades acordes a sus características, partiendo de una programación adecuada a la ley educativa vigente, ya que no hemos encontrado apenas información sobre la adaptación del currículum ordinario de Educación Física. De igual modo, se ha observado una falta de propuestas metodológicas para trabajar en el aula con este tipo de alumnado, por lo que desde un segundo nivel de concreción curricular, el profesorado podrá adaptar los elementos curriculares de sus programaciones de aula y las actividades en función de unas pautas metodológicas para elaborar propuestas docentes adaptadas a las características de sus alumnos

    Identifying functional requirements inconsistencies in multiteam projects framed into a model-based methodology

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    REP (Requirements Engineering Process) is one of the most essential processes within the software project life cycle because it allows describing software product requirements. This specification should be as consistent as possible to enable estimating in a suitable manner the effort required to obtain the final product. REP is complex in itself, but this complexity is greatly increased in big, distributed and heterogeneous projects with multiple analyst teams and high integration among functional modules. This paper presents an approach for the systematic conciliation of functional requirements in big projects dealing with a model based approach. It also explains how this approach may be implemented in the context of NDT (Navigational Development Techniques) methodology and finally, it describes a preliminary evaluation of our proposal in CALIPSOneo project by analyzing the improvements obtained with our approach.Ministerio de Economía y Competitividad TIN2016-76956-C3-2-R (POLOLAS)Ministerio de Economía y Competitividad TIN2013-46928-C3-3-RMinisterio de Economía y Competitividad TIN2015-71938-RED
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