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P. Botella

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Ashok K Karmokar

University of British Columbia

Pedro García-Caro

University of Oregon

Boston University

Waldmir Araujo Neto

Universidade Federal do Rio de Janeiro (UFRJ)

Eliseo Lara-Ordenes

Universidad Andrés Bello

Merve Ayyüce Kızrak, Ph.D.

Bahcesehir University

Mohamed H. Doweidar

University of Zaragoza

Stefano Tedeschi

Università degli Studi "La Sapienza" di Roma

spyros G tzafestas

National Technical University of Athens

Lyudmila S Mihaylova

The University of Sheffield

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Papers by P. Botella

Una salutaci� i un comprom�s

Specifications and Design Putting Non-Functional Requirements Into Software Architecture

© 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish... more © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. For more information, please see www.ieee.org/portal/pages/about/documentation/copyright/polilink.html.

Aprenentatge actiu dels sistemes d’informació

L’especialitat de Sistemes d’Informacio del Grau en Enginyeria Informatica ha de capacitar l’estu... more L’especialitat de Sistemes d’Informacio del Grau en Enginyeria Informatica ha de capacitar l’estudiant o estudianta per comprendre els processos operatius i la gestio que porten a terme les persones en les organitzacions i familiaritzar l’estudiant amb els diferents tipus d’eines tecnologiques existents actualment en un SI. En aquest projecte es persegueix impulsar un proces d’aprenentatge mes efectiu de la realitat dels sistemes d’informacio en les organitzacions a traves de la visualitzacio dels problemes del “mon real”, de manera que es generi l’interes de l’estudiantat pels continguts, se’ls faci entendre la rellevancia dels problemes plantejats i se’ls doni eines per buscar mes informacio sobre nous problemes que no s’havien plantejat inicialment.

Some reflections on applying workflow technology to software process

Process Technologies (e.g., Workflow and Software Process) support co-operative work, where human... more Process Technologies (e.g., Workflow and Software Process) support co-operative work, where humans and Information Systems participate within an organisation. In the last two decades Workflow Management Systems have been demonstrated to be useful in the automation of Business Processes. We think Software Process is part of a more complex Business Process, and it is composed by several sub-processes, but with different granularity of detail. In recent years, environments have been created to automate Software Processes, but only few products are available today in the market, and they have shortcomings that can be addressed by Workflow Technology. Such technology can improve Software Process Technology leading to a Process Technology able to manage and automate other kind of Processes. The aim of this article is to reflect our ideas about the possibility of applying Workflow Technology to Software Process and vice versa.

Introducción a la recursividad: el problema de las ocho reinas

Programación estructurada (un intento de clarificación)

Arte y ordenador: conversación con Ernesto García Camarero

Postprint (published version

th International Workshop on Software Specifications and Design Putting Non-Functional Requirements Into Software Architecture

This material is presented to ensure timely dissemination of scholarly and technical work. Copyri... more This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Abstract This paper presents an approach for incorporating non-functional information of software systems into software architectures. To do so, components present two distinguished slots: their non-functional specification, where non-functional requirements on components are placed, and their non-functional behaviour with respect to these requirements. Also, connector protocols may describe which non-functional aspects are relevant to component connections. We propose a notation to describe non-functionality in a systematic manner, and we use it to analyse two particular aspect...

Is CASE technology still alive

CASE Technology was thought as the solution of any problems of the Software Engineering. Time has... more CASE Technology was thought as the solution of any problems of the Software Engineering. Time has shown although such tecnology is a condition to support Software Development Process, it is not the unique solution. In the last years, interest in the world of CASE Technology has been declining notably. This could be clearly seen in the decreasing number of research groups, magazines and conferences about the topic. Despite this fact, we think CASE technology has not died, rather it has been applied on the automation and management of the software development phases. In this article we present how tradittonal CASE Technology has evolved to Process Technology, dealing with more issues like interoperation, human collaboration, project management, and so on. So CASE Technology has not disappeared, it has been principally applied on automating and managing the Software Process.

Goal-based reasoning in the construction of taxonomies for COTS components

In a previous work, our research group GESSI has proposed the construction of a taxonomy for clas... more In a previous work, our research group GESSI has proposed the construction of a taxonomy for classifying COTS components by means of characterization attributes to arrange domains which COTS components belong to, and also grouping these domains into categories [4]. In this report we present our first applicability study of GBRAM (Goal Based-Requirements Analysis Method) as a goal-based reasoning method for the construction of taxonomies of COTS components; more concretely for exploring the “characterization attributes” that are used to browse the taxonomy through an example: the context of the Application Development Tools. We illustrate the main aspects of customizing GBRAM to this objective and remark the methodological aspect we want to achieve in our future work: to propose guidelines for the construction of any taxonomy of COTS components.

Estudio ágil aplicado a los métodos de selección de componentes commercial off-the-shelf (COTS)

Currently organizations tend to construct their Information Systems with components acquired or l... more Currently organizations tend to construct their Information Systems with components acquired or licensed from specific segments of the market. This is a growing trend in the industry because only a few companies have the resources to compete with the constant evolution of the market. On the other hand, the use of agile methods like eXtreme Programming (XP) within the development context has increased in the industry and the research community. There are several methods of selection within the COTS context that are either based on waterfall processes or iterative developments adapted to specific business contexts. Not much has been studied about the agility of the methods proposals to select and to integrate COTS to the system architecture or the possible extrapolation of the agile concepts to the COTS domain. This proposal aims in this direction. It tries to extrapolate the agile world concepts, such as agile values and agile principles, to the world of the COTS. It is the starting ...

En torno a los entornos de programación

El concepto de Entorno de Programacion es relativamente reciente ya que aparece, al menos con est... more El concepto de Entorno de Programacion es relativamente reciente ya que aparece, al menos con esta denominacion con el inicio de la actual decada, si bien en la segunda mitad de la anterior se empieza a hablar de «sistemas de ayuda al desarrollo», «programcion asistida por ordenador" (CAP, computer aided programming) u otros nombres que denotan conceptos similares. Debido posiblemente a esta juventud existe una notable confusion en la utilizacion de este concepto (a partir de ahora nos referiremos a el como EP), confusion agravada con la aparicion en el mercado de productos software calificables de EPs. Estas breves notas pretenden unicamente proporcionar un marco de referencia, a partir de una definicion amplia, que permita orientarse en la lectura de los abundantes trabajos que existen ya sobre el lema. Se trata, tambien de establecer una clasificacion por tipos de los diferentes productos o prototipos software calificados (o calificables) como EPs. En modo alguno pretenden s...

Modelling non-functional requirements

We present in this paper the language NoFun for stating component quality in the framework of the... more We present in this paper the language NoFun for stating component quality in the framework of the ISO/IEC quality standards. The language consists of three different parts. In the first one, software quality characteristics and attributes are defined, probably in a hierarchical manner. As part of this definition, abstract quality models can be formulated and further refined into more specialised ones. In the second part, values are assigned to component quality basic attributes. In the third one, quality requirements can be stated over components, both context-free (universal quality properties) and context-dependent (quality properties for a given framework-software domain, company, project, etc.). Last, we address to the translation of the language to UML, using its extension mechanisms for capturing the fundamental non-functional concepts.

El projecte A.D.S.P.F.: cap a un nou entorn de programació

El projecte que presentem preten contribuir a una millora de la fiabilitat dels programes mitjanc... more

El ordenador como instrumento de ayuda a la creatividad artística

Roles and responsibilities for COTS components selection processes

Information systems tend nowadays to be designed by integrating or customizing Commercial Off-The... more Information systems tend nowadays to be designed by integrating or customizing Commercial Off-The-Shelf (COTS) components acquired or licensed from the marketplace. There are currently many methods that contribute to select these components. The application of COTS selection methods result in processes that are different from usual development processes, yielding to new activities and responsibilities that should be covered by interactions of specialized roles. However it may be observed that these methods do not put emphasis neither on the identification of these roles, nor on their subsequent interactions, nor on their combination to form a selection team. The contribution of this work is based on identifying and defining the roles that take place in COTS selection processes, their interactions and their responsibilities. We use a goal-oriented approach, the i* notation, and a framework to model the engineering process, the OPEN Process Framework (OPF), with the purpose of issuing...

Incidencia social de la informática

Rts Revista De Treball Social, 1984

Programacio amb tipus abstractes de dades: els tipus abstractes com a suport conceptual dels esquemes de programa

SE PRESENTA UN NUEVO ENFOQUE DEL USO DE TIPOS DE DATOS EN LA CONSTRUCCION DE PROGRAMAS DE FORMA Q... more SE PRESENTA UN NUEVO ENFOQUE DEL USO DE TIPOS DE DATOS EN LA CONSTRUCCION DE PROGRAMAS DE FORMA QUE ESTOS SE CONSTITUYEN EN SOPORTE FORMAL DE LOS ESQUEMAS DE PROGRAMA, ASI SE LLEGA A UNA SINTESIS DE DOS METODOS DE PROGRAMACION: EL USO DE TIPOS ABSTRACTOS Y EL USO DE ESQUEMAS. COMO CONSECUENCIA SE FORMALIZA EL TRATAMIENTO DE FILAS Y ARBOLES MEDIANTE ESQUEMAS Y SE DEFINE UN METODO DE VERIFICACION PARA PROGRAMAS ABSTRACTOS.

Using Non-Functional Requeriments in Component-Based Software Construction

I Jornadas De Trabajo De Ingenieria Del Software 1996 Pags 141 150, 1996

The main concern of this paper is to present the author's approach to support software developmen... more The main concern of this paper is to present the author's approach to support software development in the component programming framework taking functional and non-functional requirements into account. Functional requirements are written as algebraic specifications, while non-functional information is bound to specifications and implementations by means of ad hoc modules: the nonfunctional information is used to select automatically the most appropriate implementations of software components (the selection algorithm is not presented here). The existence of multiple type implementations is supported by a process model based on the prototyping paradigm. Prototyping is achieved by means of a mixed execution mechanism being able to operate in the context of incremental software development process allowing the execution of incomplete (partially implemented) systems. The ideas we present here are not bound to any particular programming language, giving rise to a method of wide applicability.

Lenguajes de Modelización de Procesos de Software basados en UML

Novatica Revista De La Asociacion De Tecnicos De Informatica, 2004

un Modelo de Proceso de Software (SPM) es una descripcion de los aspectos estructurales y de comp... more un Modelo de Proceso de Software (SPM) es una descripcion de los aspectos estructurales y de comportamiento de un proceso en el ambito del desarrollo de software, usando como formalismo algun lenguaje de modelizacion de procesos (Process Modeling Language, PML). En los ultimos 15 anos, la modelizacion de procesos -- y, particularmente, de procesos de software -- ha adquirido una importancia creciente como mecanismo que debe permitir, por un lado, una mejor comprension de ese proceso con vistas a su evaluacion y mejora y, por otro, la posibilidad de lograr un cierto grado de automatizacion del mismo, tal como es norma en otras disciplinas de la ingenieria. Un reto fundamental de la modelizacion de procesos de software es el de encontrar un PML estandar para la descripcion de los mismos. En este sentido, en los ultimos anos se ha hecho un esfuerzo para tratar de adaptar UML (Unified Modeling Language) los requisitos que plantean los procesos de software. Con ese objetivo han nacido perfiles UML y metamodelos, como SPEM o PROMENADE, que tratan de proponer un formalismo de modelizacion de procesos de software basado en UML. En este articulo presentamos los avances que se han producido en los ultimos anos en esta disciplina, senalamos sus retos mas importantes y hacemos un especial hincapie en el uso de UML para describir un proceso de desarrollo de software.

Una salutaci� i un comprom�s

Specifications and Design Putting Non-Functional Requirements Into Software Architecture

© 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish... more © 2006 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE. For more information, please see www.ieee.org/portal/pages/about/documentation/copyright/polilink.html.

Aprenentatge actiu dels sistemes d’informació

L’especialitat de Sistemes d’Informacio del Grau en Enginyeria Informatica ha de capacitar l’estu... more L’especialitat de Sistemes d’Informacio del Grau en Enginyeria Informatica ha de capacitar l’estudiant o estudianta per comprendre els processos operatius i la gestio que porten a terme les persones en les organitzacions i familiaritzar l’estudiant amb els diferents tipus d’eines tecnologiques existents actualment en un SI. En aquest projecte es persegueix impulsar un proces d’aprenentatge mes efectiu de la realitat dels sistemes d’informacio en les organitzacions a traves de la visualitzacio dels problemes del “mon real”, de manera que es generi l’interes de l’estudiantat pels continguts, se’ls faci entendre la rellevancia dels problemes plantejats i se’ls doni eines per buscar mes informacio sobre nous problemes que no s’havien plantejat inicialment.

Some reflections on applying workflow technology to software process

Process Technologies (e.g., Workflow and Software Process) support co-operative work, where human... more Process Technologies (e.g., Workflow and Software Process) support co-operative work, where humans and Information Systems participate within an organisation. In the last two decades Workflow Management Systems have been demonstrated to be useful in the automation of Business Processes. We think Software Process is part of a more complex Business Process, and it is composed by several sub-processes, but with different granularity of detail. In recent years, environments have been created to automate Software Processes, but only few products are available today in the market, and they have shortcomings that can be addressed by Workflow Technology. Such technology can improve Software Process Technology leading to a Process Technology able to manage and automate other kind of Processes. The aim of this article is to reflect our ideas about the possibility of applying Workflow Technology to Software Process and vice versa.

Introducción a la recursividad: el problema de las ocho reinas

Programación estructurada (un intento de clarificación)

Arte y ordenador: conversación con Ernesto García Camarero

Postprint (published version

th International Workshop on Software Specifications and Design Putting Non-Functional Requirements Into Software Architecture

This material is presented to ensure timely dissemination of scholarly and technical work. Copyri... more This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holder. Abstract This paper presents an approach for incorporating non-functional information of software systems into software architectures. To do so, components present two distinguished slots: their non-functional specification, where non-functional requirements on components are placed, and their non-functional behaviour with respect to these requirements. Also, connector protocols may describe which non-functional aspects are relevant to component connections. We propose a notation to describe non-functionality in a systematic manner, and we use it to analyse two particular aspect...

Is CASE technology still alive

CASE Technology was thought as the solution of any problems of the Software Engineering. Time has... more CASE Technology was thought as the solution of any problems of the Software Engineering. Time has shown although such tecnology is a condition to support Software Development Process, it is not the unique solution. In the last years, interest in the world of CASE Technology has been declining notably. This could be clearly seen in the decreasing number of research groups, magazines and conferences about the topic. Despite this fact, we think CASE technology has not died, rather it has been applied on the automation and management of the software development phases. In this article we present how tradittonal CASE Technology has evolved to Process Technology, dealing with more issues like interoperation, human collaboration, project management, and so on. So CASE Technology has not disappeared, it has been principally applied on automating and managing the Software Process.

Goal-based reasoning in the construction of taxonomies for COTS components

In a previous work, our research group GESSI has proposed the construction of a taxonomy for clas... more In a previous work, our research group GESSI has proposed the construction of a taxonomy for classifying COTS components by means of characterization attributes to arrange domains which COTS components belong to, and also grouping these domains into categories [4]. In this report we present our first applicability study of GBRAM (Goal Based-Requirements Analysis Method) as a goal-based reasoning method for the construction of taxonomies of COTS components; more concretely for exploring the “characterization attributes” that are used to browse the taxonomy through an example: the context of the Application Development Tools. We illustrate the main aspects of customizing GBRAM to this objective and remark the methodological aspect we want to achieve in our future work: to propose guidelines for the construction of any taxonomy of COTS components.

Estudio ágil aplicado a los métodos de selección de componentes commercial off-the-shelf (COTS)

Currently organizations tend to construct their Information Systems with components acquired or l... more Currently organizations tend to construct their Information Systems with components acquired or licensed from specific segments of the market. This is a growing trend in the industry because only a few companies have the resources to compete with the constant evolution of the market. On the other hand, the use of agile methods like eXtreme Programming (XP) within the development context has increased in the industry and the research community. There are several methods of selection within the COTS context that are either based on waterfall processes or iterative developments adapted to specific business contexts. Not much has been studied about the agility of the methods proposals to select and to integrate COTS to the system architecture or the possible extrapolation of the agile concepts to the COTS domain. This proposal aims in this direction. It tries to extrapolate the agile world concepts, such as agile values and agile principles, to the world of the COTS. It is the starting ...

En torno a los entornos de programación

El concepto de Entorno de Programacion es relativamente reciente ya que aparece, al menos con est... more El concepto de Entorno de Programacion es relativamente reciente ya que aparece, al menos con esta denominacion con el inicio de la actual decada, si bien en la segunda mitad de la anterior se empieza a hablar de «sistemas de ayuda al desarrollo», «programcion asistida por ordenador" (CAP, computer aided programming) u otros nombres que denotan conceptos similares. Debido posiblemente a esta juventud existe una notable confusion en la utilizacion de este concepto (a partir de ahora nos referiremos a el como EP), confusion agravada con la aparicion en el mercado de productos software calificables de EPs. Estas breves notas pretenden unicamente proporcionar un marco de referencia, a partir de una definicion amplia, que permita orientarse en la lectura de los abundantes trabajos que existen ya sobre el lema. Se trata, tambien de establecer una clasificacion por tipos de los diferentes productos o prototipos software calificados (o calificables) como EPs. En modo alguno pretenden s...

Modelling non-functional requirements

We present in this paper the language NoFun for stating component quality in the framework of the... more We present in this paper the language NoFun for stating component quality in the framework of the ISO/IEC quality standards. The language consists of three different parts. In the first one, software quality characteristics and attributes are defined, probably in a hierarchical manner. As part of this definition, abstract quality models can be formulated and further refined into more specialised ones. In the second part, values are assigned to component quality basic attributes. In the third one, quality requirements can be stated over components, both context-free (universal quality properties) and context-dependent (quality properties for a given framework-software domain, company, project, etc.). Last, we address to the translation of the language to UML, using its extension mechanisms for capturing the fundamental non-functional concepts.

El projecte A.D.S.P.F.: cap a un nou entorn de programació

El projecte que presentem preten contribuir a una millora de la fiabilitat dels programes mitjanc... more

El ordenador como instrumento de ayuda a la creatividad artística

Roles and responsibilities for COTS components selection processes

Information systems tend nowadays to be designed by integrating or customizing Commercial Off-The... more Information systems tend nowadays to be designed by integrating or customizing Commercial Off-The-Shelf (COTS) components acquired or licensed from the marketplace. There are currently many methods that contribute to select these components. The application of COTS selection methods result in processes that are different from usual development processes, yielding to new activities and responsibilities that should be covered by interactions of specialized roles. However it may be observed that these methods do not put emphasis neither on the identification of these roles, nor on their subsequent interactions, nor on their combination to form a selection team. The contribution of this work is based on identifying and defining the roles that take place in COTS selection processes, their interactions and their responsibilities. We use a goal-oriented approach, the i* notation, and a framework to model the engineering process, the OPEN Process Framework (OPF), with the purpose of issuing...

Incidencia social de la informática

Rts Revista De Treball Social, 1984

Programacio amb tipus abstractes de dades: els tipus abstractes com a suport conceptual dels esquemes de programa

SE PRESENTA UN NUEVO ENFOQUE DEL USO DE TIPOS DE DATOS EN LA CONSTRUCCION DE PROGRAMAS DE FORMA Q... more SE PRESENTA UN NUEVO ENFOQUE DEL USO DE TIPOS DE DATOS EN LA CONSTRUCCION DE PROGRAMAS DE FORMA QUE ESTOS SE CONSTITUYEN EN SOPORTE FORMAL DE LOS ESQUEMAS DE PROGRAMA, ASI SE LLEGA A UNA SINTESIS DE DOS METODOS DE PROGRAMACION: EL USO DE TIPOS ABSTRACTOS Y EL USO DE ESQUEMAS. COMO CONSECUENCIA SE FORMALIZA EL TRATAMIENTO DE FILAS Y ARBOLES MEDIANTE ESQUEMAS Y SE DEFINE UN METODO DE VERIFICACION PARA PROGRAMAS ABSTRACTOS.

Using Non-Functional Requeriments in Component-Based Software Construction

I Jornadas De Trabajo De Ingenieria Del Software 1996 Pags 141 150, 1996

The main concern of this paper is to present the author's approach to support software developmen... more The main concern of this paper is to present the author's approach to support software development in the component programming framework taking functional and non-functional requirements into account. Functional requirements are written as algebraic specifications, while non-functional information is bound to specifications and implementations by means of ad hoc modules: the nonfunctional information is used to select automatically the most appropriate implementations of software components (the selection algorithm is not presented here). The existence of multiple type implementations is supported by a process model based on the prototyping paradigm. Prototyping is achieved by means of a mixed execution mechanism being able to operate in the context of incremental software development process allowing the execution of incomplete (partially implemented) systems. The ideas we present here are not bound to any particular programming language, giving rise to a method of wide applicability.

Lenguajes de Modelización de Procesos de Software basados en UML

Novatica Revista De La Asociacion De Tecnicos De Informatica, 2004

un Modelo de Proceso de Software (SPM) es una descripcion de los aspectos estructurales y de comp... more un Modelo de Proceso de Software (SPM) es una descripcion de los aspectos estructurales y de comportamiento de un proceso en el ambito del desarrollo de software, usando como formalismo algun lenguaje de modelizacion de procesos (Process Modeling Language, PML). En los ultimos 15 anos, la modelizacion de procesos -- y, particularmente, de procesos de software -- ha adquirido una importancia creciente como mecanismo que debe permitir, por un lado, una mejor comprension de ese proceso con vistas a su evaluacion y mejora y, por otro, la posibilidad de lograr un cierto grado de automatizacion del mismo, tal como es norma en otras disciplinas de la ingenieria. Un reto fundamental de la modelizacion de procesos de software es el de encontrar un PML estandar para la descripcion de los mismos. En este sentido, en los ultimos anos se ha hecho un esfuerzo para tratar de adaptar UML (Unified Modeling Language) los requisitos que plantean los procesos de software. Con ese objetivo han nacido perfiles UML y metamodelos, como SPEM o PROMENADE, que tratan de proponer un formalismo de modelizacion de procesos de software basado en UML. En este articulo presentamos los avances que se han producido en los ultimos anos en esta disciplina, senalamos sus retos mas importantes y hacemos un especial hincapie en el uso de UML para describir un proceso de desarrollo de software.