Books by Santi Cots
Cualquier forma de reproducción, distribución, comunicación pública o transformación de esta obra... more Cualquier forma de reproducción, distribución, comunicación pública o transformación de esta obra solo puede ser realizada con la autorización de sus titulares, salvo excepción prevista por la ley. Diríjase a CEDRO (Centro Español de Derechos Reprográficos) si necesita fotocopiar o escanear algún fragmento de esta obra (www.conlicencia.com; 91 702 19 70/93 272 04 47).
Papers by Santi Cots
In this paper, we introduce a completely new network simulator for the simulation of connection-o... more In this paper, we introduce a completely new network simulator for the simulation of connection-oriented networks at a call level. The simulator is conceived as a framework for the development of external agents to control the network. It is built upon - and takes advantage of the features of - the standard agent platform JADE, enabling the integration of third-party agent development. The simulator and its components are described along with a running test which was carried out to show its functionality.
In this paper it is introduced an architecture of a Multi-Agent System (MAS) devoted to Network R... more In this paper it is introduced an architecture of a Multi-Agent System (MAS) devoted to Network Resource Management. This MAS performs a distributed and dynamic management of the logical network and not a single agent has a global network view. Despite the lack of global network view, results show that the MAS manages the network resources effectively, reducing the connection blocking probability and, therefore, achieving better utilisation of the network resources. The paper focuses on the analysis of the communication and co-ordination mechanisms between the agents.
This document starts with a brief background of MPLS networks, network management and agent syste... more This document starts with a brief background of MPLS networks, network management and agent systems. After that, the state-of-the-art in agent based network management is presented by reviewing several systems following various categories, like multi-agent systems and mobile agents systems
This paper presents the difficulty in routing and managing protected paths in inter-domain fault-... more This paper presents the difficulty in routing and managing protected paths in inter-domain fault-protection. This is caused by the lack of trust be- tween such domains. A multi-agent system is proposed for managing this spe- cific problem. This approach takes advantage of intrinsic distributed agents' benefits and explodes the high level communication capacities through the definition of a common ontology that can solve the limitations imposed by the reluctance between the involved domains.
Network resource management deals with proto- cols and networks capable of performing a reser- va... more Network resource management deals with proto- cols and networks capable of performing a reser- vation of the available resources in order to guar- antee a certain Quality of Service (QoS). These reserved resources can be seen as a Virtual Network, which introduces flexibility and can be dynamically reconfigured. Examples of technolo- gies that can utilise this Virtual Network concept are Asynchronous Transfer Mode (ATM), Multi- Protocol Label Switching (MPLS), and Generalised MPLS (GMPLS), which are usually used in core networks. An important objective of network providers is to obtain the maximum profit from their resources, hence there is a need for an efficient resource management. This paper presents a distributed architecture for dynamic resource management using the Virtual Network concept, in a connection-oriented environment. The objective is also to automate sev- eral human network manager functions in order to obtain a better network performance. The proposed architecture ...
… de Informática y Aplicaciones, …, 2002
En el presente artículo se describe la arquitectura de un sistema integral de gestión del ancho d... more En el presente artículo se describe la arquitectura de un sistema integral de gestión del ancho de banda y protección para entornos de redes MPLS. El sistema está formado por dos módulos, el de encaminamiento y el de gestión de recursos. El módulo de encaminamiento escogerá la mejor ruta de trabajo y las posibles rutas de respaldo, teniendo en cuenta los requerimientos de calidad de servicio y de protección de la petición. El módulo de gestión de recursos se encargará de la gestión de fallos en la red y de la mejora de la utilización de los recursos de la red mediante mecanismos de reasignación dinámica del ancho de banda.
This paper explores the benefits organizations perceive that they have attained by their ISO 2000... more This paper explores the benefits organizations perceive that they have attained by their ISO 20000 service management system standard certification. The paper proposes a classification of benefits and tests the relationship between that classification and general satisfaction with the standard. The study is based on 105 responses to ISO-20000-certified organisations survey in Spain. After a descriptive analysis of the sample, a structural equation model is designed to test the hypotheses presented. According to the model, ISO 20000 benefits can be divided into those which are internal and those which are external. The variables that best define each type are identified. Moreover, those benefits are shown to be related to general satisfaction with ISO 20000 certification. The findings can be extended to other IT service management standards such as ITIL.
Proceedings of the 1st International Conference on Quality Engineering and Management, Sep 15, 2014
Purpose - This paper explores the benefits perceived by organisations with certified ISO 20000 se... more Purpose - This paper explores the benefits perceived by organisations with certified ISO 20000 service management systems. It intends to propose a classification of benefits and test the relationship between that classification and general satisfaction of the standard. Design/methodology/approach - The study is based on 105 responses to a survey on ISO-20000- certified organisations in Spain. After a descriptive analysis of the sample, a structural equation model is presented to test the hypothesis presented. Findings—According to the model, ISO 20000 benefits can be divided between internal and external benefits. The variables that best define each type of benefit are identified. Moreover, those factors are proven to be related to general satisfaction with ISO 20000 certification and the existing correlation between internal and external benefits. Originality/value—In light of the fact that there are few quantitative studies in the field of IT service management, this paper contributes to a better understanding of the benefits related to its application. Conversely, this paper shows how to apply the classification of internal and external benefits in the case of ISO 20000 and proposes a model of causality between those benefits and satisfaction.
Total Quality Management & Business Excelence, Apr 2015
This paper is the first exploratory and quantitative study on a global scale of the current and f... more This paper is the first exploratory and quantitative study on a global scale of the current and future impact of ISO 20000, a standard that is forecast to play an important role in the information technology service management field. For the analysis of the current situation, this article first describes this standard and other related standards. This is followed by a diffusion analysis using worldwide certification data. It also analyses geographical distribution by continents and countries and examines its evolution over time through comparison with other management-system standards. The analysis extends to the relationships existing between countries, and a clear correlation is detected between different countries regarding the number of certifications and certification intensity. Regarding future forecasts, a logistic curve is used to detect the theoretical saturation point, which is earlier than previously thought. Therefore, and comparing it with an updated forecast for other parallel standards (viz: ISO 9001, ISO 14001 and ISO 27001), the analysis presents a new scenario.
QMOD 16 Conference Proceedings Intenational conference on Quality & Service Sciences (ICQSS), Sep 2013
Purpose: ISO 20000 is the only international management system standard in the service management... more Purpose: ISO 20000 is the only international management system standard in the service management field. The study explores the standard, formerly oriented to the information technology services management Methodology/Approach: The current situation is analyzed trough a description of the standard and other related standards. This is followed by a diffusion analysis using worldwide certification data analyzing geographical distribution by continents and countries and examining its evolution over time through comparison with other management-system standards. Our analysis extends to relationships existing between countries, and a clear correlation is detected between different countries regarding number of certifications and certification intensity. The logistic curve method is used to detect the theoretical saturation point Findings: As result of the analysis, the theoretical saturation point is found to be earlier than previously thought. The standard is compared with updated forecasts for other parallel standards (viz: ISO 9001, ISO 14001 and ISO 27001), describing the current stage in the management standards standardization.
TMQ - Techniques, Methodologies and Quality, Nov 2013
A norma ISO 20000 virá, muito provavelmente, a ter um papel deveras importante no campo da gestão... more A norma ISO 20000 virá, muito provavelmente, a ter um papel deveras importante no campo da gestão de serviço de empresas da área das Tecnologias de Informação. Contudo, em termos bibliográficos não existem muitos estudos sobre a mesma, devido, essencialmente, à sua juventude. Este artigo, suportado na implementação da norma ISO 20000 numa Universidade espanhola com mais de 14.000 alunos, tem como objectivo apresentar nove oportunidades de melhoria ao estado actual do referencial. O objectivo das propostas de melhoria apresentadas vão no sentido de aumentar a flexibilidade do referencial, de reduzir as dificuldades associadas à implementação do mesmo, bem como aumentar a satisfação das organizações que o implementam.
La norma internacional ISO/IEC 20.000 define los requisitos para la implantación de un sistema de... more La norma internacional ISO/IEC 20.000 define los requisitos para la implantación de un sistema de gestión estandarizado basado en procesos para la gestión de servicios TI. La evolución en su implantación es indicativa de como la estandarización en gestión con calidad en el ámbito TI son valoradas por las organizaciones.
Conference Presentations by Santi Cots
Purpose –Digital transformation planned, underway or even a reality for many businesses. Quality ... more Purpose –Digital transformation planned, underway or even a reality for many businesses. Quality management, as an organizational activity or function, should be also transformed and quality managers should be aware of the new possibilities.
Design/methodology/approach – The paper is completely exploratory and focused on presenting the scenario and make a list of suggestions to be discussed.
Findings – A set of seven general proposals in the form of advices to quality managers looking at the digital transformation.
Practical implications - This paper is structured around a series of propositions for quality managers to take advantage of the new technological possibilities that could heavily impact their areas in the new coming years.
Originality/value – The intention is to provoke debate and call to reflection and action to quality managers on how to transform their activities.
Uploads
Books by Santi Cots
Papers by Santi Cots
Conference Presentations by Santi Cots
Design/methodology/approach – The paper is completely exploratory and focused on presenting the scenario and make a list of suggestions to be discussed.
Findings – A set of seven general proposals in the form of advices to quality managers looking at the digital transformation.
Practical implications - This paper is structured around a series of propositions for quality managers to take advantage of the new technological possibilities that could heavily impact their areas in the new coming years.
Originality/value – The intention is to provoke debate and call to reflection and action to quality managers on how to transform their activities.
Design/methodology/approach – The paper is completely exploratory and focused on presenting the scenario and make a list of suggestions to be discussed.
Findings – A set of seven general proposals in the form of advices to quality managers looking at the digital transformation.
Practical implications - This paper is structured around a series of propositions for quality managers to take advantage of the new technological possibilities that could heavily impact their areas in the new coming years.
Originality/value – The intention is to provoke debate and call to reflection and action to quality managers on how to transform their activities.