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Author | Carlos Monsalve; Alain April and Alain Abran | ||||
Title | Measuring software functional size from business process models | Type | Journal Article | ||
Year | 2011 | Publication | International Journal of Software Engineering and Knowledge Engineering | Abbreviated Journal | |
Volume | Vol. 21 | Issue | Pages | pp. 311–338 | |
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Abstract | ISO 14143-1 specifies that a functional size measurement (FSM) method must provide measurement procedures to quantify the functional user requirements (FURs) of software. Such quantitative information, functional size, is typically used, for instance, in software estimation. One of the international standards for FSM is the COSMIC FSM method — ISO 19761 — which was designed to be applied both to the business application (BA) software domain and to the real-time software domain. A recurrent problem in FSM is the availability and quality of the inputs required for measurement purposes; that is, well documented FURs. Business process (BP) models, as they are commonly used to gather requirements from the early stages of a project, could be a valuable source of information for FSM. In a previous article, the feasibility of such an approach for the BA domain was analyzed using the Qualigram BP modeling notation. This paper complements that work by: (1) analyzing the use of BPMN for FSM in the BA domain; (2) presenting notation-independent guidelines for the BA domain; and (3) analyzing the possibility of using BP models to perform FSM in the real-time domain. The measurement results obtained from BP models are compared with those of previous FSM case studies. | ||||
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Language | English | Summary Language | English | Original Title | |
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 19 | ||
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Author | Juan C. Basurto, Patricia Chávez and Hernán Córdova | ||||
Title | A Proximity-Aware Transparent Handoff Mobility Scheme for VoIP Communication over Infrastructure Mesh Networks | Type | Conference Article | ||
Year | 2011 | Publication | International Congress of Electronic, Electrical and Systems Engineering-INTERCON 2011 | Abbreviated Journal | |
Volume | Issue | Pages | |||
Keywords | Wireless Mesh Networks; Quality of Service; Mobility Management; Voice over IP. | ||||
Abstract | Mobility Management plays a key role in Voice-over- IP (VoIP) communications over Wireless Mesh Networks (WMN) as clients should maintain adequate levels of Quality of Service (QoS) as they move across the network. This paper presents PATH, a Proximity-Aware Transparent Handoff mobility scheme for real time voice communications over wireless mesh networks. Our study focuses on Medium Access Control (MAC) layer procedures and relies on gratuitous ARP unicasting in order to provide fast-handoffs. An experimental evaluation has been conducted and its results are shown in this paper. | ||||
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Language | English | Summary Language | English | Original Title | |
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 20 | ||
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Author | Cristina L. Abad; Yi Lu; Roy H. Campbell | ||||
Title | DARE: Adaptive Data Replication for Efficient Cluster Scheduling | Type | Conference Article | ||
Year | 2011 | Publication | IEEE International Conference on Cluster Computing, 2011 | Abbreviated Journal | |
Volume | Issue | Pages | 159 - 168 | ||
Keywords | MapReduce, replication, scheduling, locality | ||||
Abstract | Placing data as close as possible to computation is a common practice of data intensive systems, commonly referred to as the data locality problem. By analyzing existing production systems, we confirm the benefit of data locality and find that data have different popularity and varying correlation of accesses. We propose DARE, a distributed adaptive data replication algorithm that aids the scheduler to achieve better data locality. DARE solves two problems, how many replicas to allocate for each file and where to place them, using probabilistic sampling and a competitive aging algorithm independently at each node. It takes advantage of existing remote data accesses in the system and incurs no extra network usage. Using two mixed workload traces from Facebook, we show that DARE improves data locality by more than 7 times with the FIFO scheduler in Hadoop and achieves more than 85% data locality for the FAIR scheduler with delay scheduling. Turnaround time and job slowdown are reduced by 19% and 25%, respectively. | ||||
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Language | English | Summary Language | English | Original Title | |
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Notes | Approved | yes | |||
Call Number | cidis @ cidis @ | Serial | 21 | ||
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Author | Monica Villavicencio; Alain Abran | ||||
Title | Educational Issues in the Teaching of Software Measurement in Software Engineering Undergraduate Programs | Type | Conference Article | ||
Year | 2011 | Publication | Joint Conference of the International Workshop on Software Measurement and the International Conference on Software Process and Product Measurement | Abbreviated Journal | |
Volume | Issue | Pages | 239-244 | ||
Keywords | measurement; software engineering; higher education | ||||
Abstract | In mature engineering disciplines and science, mathematics and measurement are considered as important subjects to be taught in university programs. This paper discusses about these subjects in terms of their respective meanings and complementarities. It also presents a discussion regarding their maturity, relevance and innovations in their teaching in engineering programs. This paper pays special attention to the teaching of software measurement in higher education, in particular with respect to mathematics and measurement in engineering in general. The findings from this analysis will be useful for researchers and educators interested in the enhancement of educational issues related to software measurement. | ||||
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Publisher | IEEE | Place of Publication | Editor | ||
Language | English | Summary Language | English | Original Title | |
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Notes | Approved | no | |||
Call Number | gtsi @ user @ | Serial | 68 | ||
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Author | Mónica Villavicencio; Alain Abran | ||||
Title | Facts and Perceptions Regarding Software Measurement in Education and in Practice: Preliminary Results | Type | Journal Article | ||
Year | 2011 | Publication | Journal of Software Engineering and Application | Abbreviated Journal | |
Volume | Issue | Pages | pp. 227-234 | ||
Keywords | Software measurement, education, software engineering | ||||
Abstract | How is software measurement addressed in undergraduate and graduate programs in universities? Do organizations consider that the graduating students they hire have an adequate knowledge of software measurement? To answer these and related questions, a survey was administered to participants who attended the IWSM-MENSURA 2010 conference in Stuttgart, Germany. Forty-seven of the 69 conference participants (including software development practitioners, software measurement consultants, university professors, and graduate students) took part in the survey. The results indicate that software measurement topics are: A) covered mostly at the graduate level and not at the undergraduate level, and B) not mandatory. Graduate students and professors consider that, of the measurement topics covered in university curricula, specific topics, such as measures for the requirements phase, and measurement techniques and tools, receive more attention in the academic context. A common observation of the practitioners who participated in the survey was that students hired as new employees bring limited software measurement-related knowledge to their organizations. Discussion of the findings and directions for future research are presented. | ||||
Address | 2 CIDIS-FIEC, Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador | ||||
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Language | English | Summary Language | English | Original Title | |
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 17 | ||
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Author | Del Pino, J.; Salazar, G.; Cedeño, V. Msc. | ||||
Title | Adaptación de un Recomendador de Filtro Colaborativo Basado en el Usuario para la Creación de un Recomendador de Materias de Pregrado Basado en el Historial Académico de los Estudiantes | Type | Journal Article | ||
Year | 2011 | Publication | Revista Tecnológica ESPOL | Abbreviated Journal | |
Volume | Vol. 24 | Issue | Pages | pp. 29 - 34 | |
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Abstract | Los sistemas de recomendación son ampliamente utilizados hoy en día gracias a su capacidad de analizar las preferencias de usuarios y sugerir ítems. No obstante, el uso de los recomendadores está limitado a un modelo basado en el usuario y no en su historial de preferencias, discriminando así el campo de aplicación, por ejemplo, a sistemas académicos donde sea primordial el estudio de las decisiones del estudiante a lo largo de su carrera. El presente trabajo presenta un esfuerzo por adaptar filtros colaborativos basados en el usuario a filtros colaborativos basados en el historial del usuario. Con un conjunto de pruebas mediremos su efectividad utilizando dos algoritmos distintos de similaridad para recomendar materias a un estudiante en el sexto semestre de la carrera de Ingeniería en Electrónica y Telecomunicaciones ofertada por la FIEC – ESPOL. Los resultados muestran que es factible adaptar un recomendador a un modelo basado en el historial del usuario |
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Address | Campus “Gustavo Galindo Velasco” La prosperina Km 30,5 vía perimetral, Guayaquil, Ecuador | ||||
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Language | Español | Summary Language | Español | Original Title | |
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 13 | ||
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Author | Carlos Monsalve; Alain April; Alain Abran | ||||
Title | Requirements Elicitation Using BPM Notations: Focusing on the Strategic Level Representation | Type | Conference Article | ||
Year | 2011 | Publication | 10th WSEAS international conference on Applied computer and applied computational science | Abbreviated Journal | |
Volume | Issue | Pages | 235-241 | ||
Keywords | Business process modeling, levels of abstraction, requirements elicitation, case study, action research | ||||
Abstract | Business process models (BPM) can be useful for requirements elicitation, among other uses. Since the active participation of all stakeholders is a key factor for successful requirements engineering, it is important that BPM be shared by all stakeholders. Unfortunately, organizations may end up with inconsistent BPM not covering all stakeholders’ needs and constraints. The use of multiple levels of abstraction (MLA), such as at the strategic, tactical and operational levels, is often used in various process-oriented initiatives to facilitate the consolidation of various stakeholders’ needs and constraints. This article surveys the use of MLA in recent BPM research publications and reports on a BPM action-research case study conducted in a Canadian organization, with the aim of exploring the usefulness of the strategic level. | ||||
Address | CIDIS – Electrical and Computer Engineering Department Escuela Superior Politécnica del Litoral Km. 30.5 vía Perimetral | ||||
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Publisher | Place of Publication | 1100 rue Notre-Dame Ouest, Montréal, Québec H3C 1K3 CANADA | Editor | ||
Language | English | Summary Language | English | Original Title | |
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 16 | ||
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Author | Carlos Monsalve; Alain April; Alain Abran | ||||
Title | BPM and requirements elicitation at multiple levels of abstraction: A review | Type | Conference Article | ||
Year | 2011 | Publication | IADIS International Conference on Information Systems 2011 | Abbreviated Journal | |
Volume | Issue | Pages | 237-242 | ||
Keywords | Business process modeling, levels of abstraction, requirements elicitation, requirements modeling, review | ||||
Abstract | Business process models can be useful for requirements elicitation, among other things. Software development depends on the quality of the requirements elicitation activities, and so adequately modeling business processes (BPs) is critical. A key factor in achieving this is the active participation of all the stakeholders in the development of a shared vision of BPs. Unfortunately, organizations often find themselves left with inconsistent BPs that do not cover all the stakeholders’ needs and constraints. However, consolidation of the various stakeholder requirements may be facilitated through the use of multiple levels of abstraction (MLA). This article contributes to the research into MLA use in business process modeling (BPM) for software requirements by reviewing the theoretical foundations of MLA and their use in various BP-oriented approaches. |
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Address | CIDIS-FIEC, Escuela Superior Politécnica del Litoral (ESPOL) Km. 30.5 vía Perimetral, | ||||
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 15 | ||
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Author | Arias Alexandra. Ing.; Peña Roxanna. Ing.; Chávez Patricia. MSEE.; Basurto Juan. Ing | ||||
Title | Análisis Comparativo de la Implementación de una PBX de Código Abierto instalada en un Servidor Tradicional y en un Enrutador Inalámbrico en términos de Calidad de Servicio en Redes Inalámbricas Amalladas | Type | Journal Article | ||
Year | 2011 | Publication | Revista Tecnologica ESPOL RTE | Abbreviated Journal | |
Volume | Vol. 24 | Issue | Pages | pp. 1-6 | |
Keywords | Redes Inalámbricas Mesh, VoIP, Asterisk | ||||
Abstract | El presente trabajo compara dos Implementaciones de Centrales Telefónicas VoIP de Código Abierto implementados sobre una Red Inalámbrica Amallada. El primero comprende la instalación de la PBX en un servidor tradicional y el segundo la instalación de una PBX en un enrutador inalámbrico. Nuestro objetivo es determinar cuál de estos dos sistemas es superior en cuanto a calidad de servicio se refiere. Para determinar la mejor solución, realizamos un estudio técnico de los paquetes capturados durante diferentes pruebas, considerando parámetros como el ancho de banda, retardo y jitter. Nuestros métodos de análisis pueden ser utilizados para futuros trabajos con una mayor complejidad y número de enrutadores inalámbrico, así como establecer el grado de afectación y el comportamiento de las dos PBX cuando haya congestión en la red. |
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Address | Escuela Superior Politécnica del Litoral Km 30.5 vía Perimetral | ||||
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Publisher | Place of Publication | Guayaquil, Guayas Ecuador | Editor | ||
Language | Español | Summary Language | Original Title | ||
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Notes | Approved | no | |||
Call Number | cidis @ cidis @ | Serial | 14 | ||
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