Code smells are poor implementation choices, thought to make object-oriented systems hard to maintain. In this study, we investigate if classes with code smells are more change-prone than classes without smells. Specifically, we test the general hypothesis: classes with code smells are not more change prone than other classes. We detect 29 code smells in 9 releases of Azureus and in 13 releases of Eclipse, and study the relation between classes with these code smells and class change-proneness. We show that, in almost all releases of Azureus and Eclipse, classes with code smells are more change-prone than others, and that specific smells are more correlated than others to change-proneness. These results justify a posteriori previous work on the specification and detection of code smells and could help focusing quality assurance and testing activities.

/pdf/an-exploratory-study-of-the-impact-of-code-smells-on-orr446y6tf.pdf

An Exploratory Study of the Impact of Code Smells on Software Change-proneness

Metabolic and mitochondrial disorders associated with epilepsy in children with autism spectrum disorder

A number of research groups and software companies have developed digital annotation tools for textual documents, web pages, images, audio and video resources. By annotations we mean subjective comments, notes, explanations or external remarks that can be attached to a document or a selected part of a document without actually modifying the document. When a user retrieves a document, they can also download the annotations attached to it from an annotation server to view their peer's opinions and perspectives on the particular document or to add, edit or update their own annotations. The ability to do this collaboratively and in real time during group discussions is of great interest to the educational, medical, scientific, cultural, defense and media communities. But it is extremely challenging technically and demands significant bandwidth, particularly for video documents. In this paper we describe a unique prototype application developed over the Australian GrangeNet broadband research network, which combines videoconferencing over access grid nodes with collaborative, real-time sharing of an application which enables the indexing, browsing, annotation and discussion of video content between multiple groups at remote locations.

/pdf/vannotea-a-collaborative-video-indexing-annotation-and-4ucvknnpta.pdf

Vannotea: A collaborative video indexing, annotation and discussion system for broadband networks

A number of research groups and software companies have developed digital annotation tools for textual documents, Web pages, images, and audio and video resources. By annotations we mean subjective comments, notes, explanations or external remarks that can be attached to a document or a selected part of a document without actually modifying the document. When a user retrieves a document, they can also download the annotations attached to it from an annotation server to view their peer's opinions and perspectives on the particular document or to add, edit or update their own annotations. The ability to do this collaboratively and in real time during group discussions is of great interest to the educational, medical, scientific, cultural, defense, and media communities. But it is extremely challenging technically and demands significant bandwidth, particularly for video documents. In this paper, we describe a unique prototype application developed over the Australian GrangeNet broadband research network, which combines videoconferencing over access grid nodes with collaborative, real-time sharing of an application which enables the indexing, browsing, annotation, and discussion of video content between multiple groups at remote locations.

/pdf/filmed-collaborative-video-indexing-annotation-and-4adtw4ftmr.pdf

FilmEd - collaborative video indexing, annotation, and discussion tools over broadband networks

Hoy en dia, la complejidad de los sistemas software y la gran relevancia que han adquirido los
requisitos no funcionales son retos que han de abordarse durante el proceso de desarrollo
software. En los ultimos anos, estas propiedades han provocado un gran incremento en el
tiempo y el personal necesario para llevar a cabo los procesos de desarrollo y mantenimiento
del software. Por ello, existe un gran interes en mejorar dichos procesos. Esta tesis presenta un
nuevo enfoque de desarrollo para sistemas software complejos. Dicho enfoque, llamado
PRISMA, da soporte a estos nuevos retos y permite satisfacer la elevada competitividad del
mercado.
El enfoque PRISMA se ha materializado en un marco de trabajo formado por un modelo,
un lenguaje, una metodologia y un prototipo de herramienta CASE (Computer-Aided Software
Engineering). El modelo de PRISMA combina dos aproximaciones para definir arquitecturas
software: el Desarrollo de Software Basado en Componentes (DSBC) y el Desarrollo de
Software Orientado a Aspectos (DSOA). Las principales aportaciones del modelo es la manera
en la que integra ambas aproximaciones para obtener sus ventajas y su lenguaje formal.
PRISMA tiene en cuenta los requisitos no funcionales desde las primeras etapas del ciclo de
vida software y mejora su reutilizacion y el mantenimiento. Todo ello gracias a la
descomposicion que realiza de los sistemas software utilizando dos conceptos diferentes:
aspectos y elementos arquitectonicos (componentes y conectores).
PRISMA proporciona un Lenguaje de Descripcion de Arquitecturas Orientado a Aspectos
(LDAOA) formal para la especificacion de arquitecturas software orientadas a aspectos. El
LDAOA de PRISMA es independiente de cualquier tecnologia y esta basado en lenguajes
formales para evitar la ambiguedad y poder aplicar tecnicas de generacion automatica de
codigo.
La metodologia de PRISMA apuesta por el desarrollo de software siguiendo el Paradigma
de la Prototipacion Automatica mediante la aplicacion del e

http://www.dsic.upv.es/docs/bib-dig/tesis/etd-10022006-185842/JenniferThesisFinalVersion.pdf

Prisma: aspect-oriented software architectures

From the Publisher:
This book is for C and C++ programmers looking to move their skill set into web development, Visual Basic programmers looking for a more powerful language and ASP developers who are interested in what C# has to offer. The only requirement is that you are an experienced developer, familiar with at least one other high level language used on Windows - either C++, VB or J++.

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