432 research outputs found
Impacto de las características personales de los programadores en la efectividad de Test-Driven-Development (TDD)
Contexto: El desarrollo dirigido por pruebas (Test Driven Development - TDD), es una estrategia de programación propuesta por Kent Beck (Beck,2002) como alternativa al desarrollo de software tradicional, ha sido una técnica ampliamente estudiada en la ingeniería de software experimental, especialmente con la realización de estudios que intentan demostrar su efectividad en términos de calidad del código y productividad de los programadores.
Objetivos: En este trabajo de tesis doctoral, se propone la realización de una familia de experimentos (Basili,1999), para determinar la influencia de factores personales en la Calidad externa y en la Productividad al aplicar TDD en comparación con el desarrollo iterativo con pruebas al final (ITLD).
Metodología: Se realizó una serie de 7 estudios experimentales en el ámbito académico e industrial, partiendo de un experimento tomado como base. Posteriormente los resultados fueron sintetizados mediante un meta- análisis tipo Individual Patient Data (IPD) con descomposición en subgrupos.
Resultados: Se obtuvieron diferentes resultados en cuanto a la influencia de los factores humanos sobre la Calidad externa y Productividad, dependiendo del tipo de reclutamiento de los participantes que fueron agrupados como voluntarios (volunteer), no voluntarios (conscripted) y aquellos que participaron de los experimentos como un curso de entrenamiento (Training course), o también agrupados como profesionales y estudiantes. la Calidad externa no produjo diferencias significativas al aplicar TDD, aunque en ciertos casos hubo mejoras al aplicar TDD con estudiantes que participaron como conscripted, pero en otros casos la calidad externa decreció cuando fueron estudiantes que participaron como voluntarios. Por otra parte, los desarrolladores que usaron TDD fueron más productivos que aquellos que usaron ITLD.
La experiencia en el uso de herramientas de prueba produjo resultados significativos para la Calidad externa y Productividad, aunque esto depende del tipo de reclutamiento y del carácter profesional o estudiante. Así mismo, la experiencia en Java incidió significativamente en la Calidad externa y el conocimiento del entorno Eclipse en la Productividad. La edad y el grado de completitud o cantidad de código entregado por los participantes al realizar las tareas experimentales fue un factor que influyó significativamente en la Productividad, independientemente de la técnica utilizada. Otro resultado obtenido es que conforme los participantes profesionales tienen mayor edad, su grado de completitud fue disminuyendo, aunque existió cierto interés por realizar un mejor trabajo al aplicar TDD.
Conclusiones: Creemos que uno de los principales aportes de nuestro estudio, que lo consideramos de carácter exploratorio, es haber comprobado cómo la motivación, en este caso determinada por el tipo de reclutamiento, incide en el interés de los sujetos sean profesionales o estudiantes al realizar las tareas experimentales y por tanto influye en su productividad. También observamos que la edad es otro factor humano que debe ser objeto de una mayor investigación en trabajos futuros.Facultad de Informátic
Overseas Primary Listing: U.S. Stock Markets as a Global Hub for IPOs?
Between 2007 and 2021, several South American companies carried out IPOs outside their home countries, with the subsequent overseas primary listing of their shares on U.S. stock exchanges. The acceleration of this trend from January 2018 (with the IPO of PagSeguro Digital Ltd. on the New York Stock Exchange—NYSE) is not explained solely by the possibility of adopting dual-class shares structure for companies listed on U.S. stock exchanges. In this sense, factors such as: (1) biases and subjectivities in the decision-making process; (2) cultural proximity and history of successful precedents; (3) better valuation in comparison with local markets; and (4) access to global markets, sophisticated investors, and reputation; were found to be key explanatory elements for this wave of IPOs and overseas primary listings on U.S. stock exchanges, especially Nasdaq. This Article concludes that this trend, which Brazilian companies mainly carried, can be replicated or accelerated in other specific sets of countries if more advanced conditions are fulfilled in their private equity and venture capital industry. The U.S. markets provide an attractive level of know-how for its participants and scale, resulting in a better valuation of technology companies. This is particularly important for companies that cannot rely on thriving capital markets where they concentrate their operations
Managing the digital university : paradigms, leadership, and organization
The reflection on university management is based on the question about the shape of universities of the future. Civic, responsible, sustainable, virtual, digital, and many other universities can be mentioned among the concepts present in the literature. All these names describe an important distinctive feature of a university, which will gain more and more importance in the future. However, given the fundamental importance of the radical change taking place, it seems that the most appropriate name, reflecting the essence of the emerging new formation, is "digital university." This is because of the importance of digital transformation, which has been developing for several decades, bringing deep and multidirectional changes in the areas of technology, economy, society, and culture. It is a disruptive civilizational transition and, although stretched over many decades, it is revolutionary in nature, significantly changing our lives in the Anthropocene. The book has three cognitive and pragmatic objectives: to provide a new perspective on the changing academic organization and management; to reflect on higher education management concepts and methods; and to present an overview of university management, governance, and leadership, useful from the perspective of academic managers, and other stakeholders
Technology Assessment in a Globalized World
This open access book explores the relevance of the concept of technology assessment (TA) on an international and global level. Technologies play a key role in addressing global challenges such as climate change, population aging, digitization, and health. At the same time, their use increases the need for coordinated action and governance at the global level in the field of science, technology and innovation (STI). Featuring case studies on STI fields such as energy, biotechnology, artificial intelligence, and health technology, as well as TA activities at the national and international levels, this book reflects on the challenges and opportunities of global technology governance. It also provides an in-depth discussion of current governmental STI cultures and systems, societal expectations, and the policy priorities needed to achieve coordinated and effective STI intervention in policymaking and public debate at the global level. Lastly, the book promotes the establishment of a forum for a truly global dialogue of TA practitioners, fostering the articulation of their needs, knowledge and perspectives
Changing Priorities. 3rd VIBRArch
In order to warrant a good present and future for people around the planet and to safe the care of the planet itself, research in architecture has to release all its potential. Therefore, the aims of the 3rd Valencia International Biennial of Research in Architecture are:
- To focus on the most relevant needs of humanity and the planet and what architectural research can do for solving them.
- To assess the evolution of architectural research in traditionally matters of interest and the current state of these popular and widespread topics.
- To deepen in the current state and findings of architectural research on subjects akin to post-capitalism and frequently related to equal opportunities and the universal right to personal development and happiness.
- To showcase all kinds of research related to the new and holistic concept of sustainability and to climate emergency.
- To place in the spotlight those ongoing works or available proposals developed by architectural researchers in order to combat the effects of the COVID-19 pandemic.
- To underline the capacity of architectural research to develop resiliency and abilities to adapt itself to changing priorities.
- To highlight architecture's multidisciplinarity as a melting pot of multiple approaches, points of view and expertise.
- To open new perspectives for architectural research by promoting the development of multidisciplinary and inter-university networks and research groups.
For all that, the 3rd Valencia International Biennial of Research in Architecture is open not only to architects, but also for any academic, practitioner, professional or student with a determination to develop research in architecture or neighboring fields.Cabrera Fausto, I. (2023). Changing Priorities. 3rd VIBRArch. Editorial Universitat Politècnica de València. https://doi.org/10.4995/VIBRArch2022.2022.1686
The Strategic Supply Chain Management in the Digital Era, Tactical vs Strategic
The perspective of procurement and supply chain management is changing dramatically; traditionally, it was seen as a support function; however, the procurement function is receiving increased attention and investment as an essential contributor to the strategic success and a business enabler. While an end-to-end digital supply chain is an opportunity as it unleashes the next level of strategic growth and involves minimal investment in infrastructure, it is still a challenge to optimize and transform. Furthermore, the recent pandemics and geopolitical disruptions of Covid-19, the Ukraine-Russian war, Brexit and the US-China trade war; have structurally changed the global economy and revealed a new risk assessment that will result in the re-introduction of buffers, boundaries across industries and a partial return to regionalization with sort of de-globalization in which existing just-in-time getting replaced by just-in-case strategy
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