Description of Policies Enriched by Semantics for Security Management

2008 ◽  
pp. 162-181
Author(s):  
Félix J. García Clemente ◽  
Gregorio Martínez Perez ◽  
Juan A. Botía Blaya ◽  
Antonio F. Skarmeta

Policies, which usually govern the behaviour of networking services (e.g., security, QoS, mobility, etc.) are becoming an increasingly popular approach for the dynamic regulation of web information systems. By appropriately managing policies, a system can be continuously adjusted to accommodate variations in externally imposed constraints and environmental conditions. The adoption of a policy based approach for controlling a system requires an appropriate policy representation regarding both syntax and semantics, and the design and development of a policy management framework. In the context of the Web, the use of languages enriched with semantics has been limited primarily to represent Web content and services. However the capabilities of these languages, coupled with the availability of tools to manipulate them, make them well suited for many other kinds of applications, as policy representation and management. In this chapter, we present an evaluation of the ongoing efforts to use ontological (Semantic Web) languages to represent policies for distributed systems.

2006 ◽  
pp. 364-390 ◽  
Author(s):  
Félix J. García Clemente ◽  
Gregorio Martínez Perez ◽  
Juan A. Botía Blaya ◽  
Antonio F. Gómez Skarmeta

Policies, which usually govern the behavior of networking services (e.g., security, QoS, mobility, etc.) are becoming an increasingly popular approach for the dynamic regulation of Web information systems. By appropriately managing policies, a system can be continuously adjusted to accommodate variations in externally imposed constraints and environmental conditions. The adoption of a policy-based approach for controlling a system requires an appropriate policy representation regarding both syntax and semantics, and the design and development of a policy management framework. In the context of the Web, the use of languages enriched with semantics has been limited primarily to represent Web content and services. However the capabilities of these languages, coupled with the availability of tools to manipulate them, make them well suited for many other kinds of applications, as policy representation and management. In this chapter, we present an evaluation of the ongoing efforts to use ontological (Semantic Web) languages to represent policies for distributed systems.


Author(s):  
Félix J. García Clemente ◽  
Gregorio Martínez Perez ◽  
Juan A. Botía Blaya ◽  
Antonio F. Gómez Skarmeta

Policies, which usually govern the behavior of networking services (e.g., security, QoS, mobility, etc.) are becoming an increasingly popular approach for the dynamic regulation of Web information systems. By appropriately managing policies, a system can be continuously adjusted to accommodate variations in externally imposed constraints and environmental conditions. The adoption of a policy-based approach for controlling a system requires an appropriate policy representation regarding both syntax and semantics, and the design and development of a policy management framework. In the context of the Web, the use of languages enriched with semantics has been limited primarily to represent Web content and services. However the capabilities of these languages, coupled with the availability of tools to manipulate them, make them well suited for many other kinds of applications, as policy representation and management. In this chapter, we present an evaluation of the ongoing efforts to use ontological (Semantic Web) languages to represent policies for distributed systems.


2011 ◽  
pp. 310-343
Author(s):  
Vítor Estêvão Silva Souza ◽  
Ricardo de Almeida Falbo ◽  
Giancarlo Guizzardi

In the Web Engineering area, many methods and frameworks to support Web Information Systems (WISs) development have already been proposed. Particularly, the use of frameworks and containerbased architectures is state-of-the-practice. In this chapter, we present a method for designing framework- based WISs called FrameWeb, which defines a standard architecture for framework-based WISs and a modeling language that extends UML to build diagrams that specifically depict framework-related components. Considering that the Semantic Web has been gaining momentum in the last few years, we also propose an extension to FrameWeb, called S-FrameWeb, that aims to support the development of Semantic WISs.


Author(s):  
Roberto Paiano ◽  
Anna Lisa Guido ◽  
Andrea Pandurino

In this chapter, we briefly summarize the results achieved in this book, and we will provide some indications on possible future developments. In the book’s coverage, we mainly focus on the design and on the development of complex Web information systems that are information systems that aim to manage, in an explicit way, the design of the processes inside the Web application as support for them.


2013 ◽  
Vol 5 (2) ◽  
pp. 32-47 ◽  
Author(s):  
Crescenzio Gallo ◽  
Franco Malatacca ◽  
Angelo Fratello

The best tools to manage the exchange of information and services between heterogeneous subjects through new technological tools with particular reference to information systems are certainly the Web-based information systems. Leveraging the infrastructure of the Web, these systems may be able to handle multimedia data, to perform distributed and cooperative applications based on service, in addition to customizing applications and related data. This paper provides an overview on Web Information Systems with particular reference to GIS, presenting a description of the usage scenarios and a comparison between two significant platform for publishing spatial data.


Author(s):  
Geert-Jan Houben ◽  
Lora Aroyo ◽  
Paul De Bra ◽  
Darina Dicheva

This chapter presents main issues and the state of the art of research on adaptation engineering in adaptive concept-based systems. Adaptive concept-based systems are characterised by the prominent role of concept structures, which makes content classification and conceptualisation play central roles in engineering. On top of these concept structures, adaptation is engineered in order to achieve personalisation of both the content and their presentation. For this presentation many systems use hypermedia structures, as that nicely supports the Web-based application. As a consequence, navigation adaptation is also a central issue in system design. Next to modelling domain and adaptation, it is necessary to model the user and what the system knows or assumes of the user. To discuss different approaches to these issues, we have identified three main classes of adaptive concept-based systems. Adaptive Web information systems build the more general class of data-intensive applications. We use the Hera design methodology to explain the properties of this class. The second class of systems is that of adaptive hypermedia systems. On the basis of the AHAM reference model and the AHA! system, we illustrate this class. The third class consists of adaptive task-based systems, for which we present AIMS as a representative.


Author(s):  
Nicolas Guelfi ◽  
Cédric Pruski ◽  
Chantal Reynaud

The evolution of Web information is of utmost importance in the design of good Web Information Systems applications. New emerging paradigms, like the Semantic Web, use ontologies for describing metadata and are defined, in part, to aid in Web evolution. In this chapter, we survey techniques for ontology evolution. After identifying the different kinds of evolution with which the Web is confronted, we detail the various existing languages and techniques devoted to Web data evolution, with particular attention to Semantic Web concepts, and how these languages and techniques can be adapted to evolving data in order to improve the quality of Web Information Systems applications.


Author(s):  
Carlos García Moreno

This chapter faces the Web accessibility issue from the perspective of Web Information Systems Quality, which is the main topic of the handbook. The closed relation between both issues (and also standard Web technologies) will be explained. It will be proven that Web accessibility does not imply any extra effort; it is a consequence of good development and design practices. In order to achieve this objective the basic topics related to Web accessibility will be defined and necessary introductory information will be exposed, in order to set the basis for the understanding of the points of discussion, which form the main content of the chapter. Also, some benefits of Web accessibility will be proven and the myths related to Web accessibility will be refuted. By the end of the chapter, the future trends and the newest standard Web technologies that have been designed, taking into account Web accessibility needs, will be introduced.


Author(s):  
Olfa Nasraoui

The Web information age has brought a dramatic increase in the sheer amount of information (Web content), in the access to this information (Web usage), and in the intricate complexities governing the relationships within this information (Web structure). Hence, not surprisingly, information overload when searching and browsing the World Wide Web (WWW) has become the plague du jour. One of the most promising and potent remedies against this plague comes in the form of personalization. Personalization aims to customize the interactions on a Web site, depending on the user’s explicit and/or implicit interests and desires.


Sign in / Sign up

Export Citation Format

Share Document