Models and tools for designing data-intensive web applications

Ceri, Stefano

doi:10.1109/coopis.1999.792147

Cited by 43 publications

(68 citation statements)

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“…Many approaches have been proposed to the problem of the design and the implementation of an adaptive Web based information system (Bickmore et al, 1999;Ceri et al, 2000;Ceri et al, 2003; KieBling, 2002; Leubner and Kie, 2002;Gu and Helal, 2004;Pastor et al, 2003;Schwabe et al, 1996). However, they are often specific solutions, suited only for predefined adaptation requirements (usually device characteristics and user preferences) and hardly reusable for adding new adaptation functionality to existing systems.…”

Section: Roberto De Virgilio and Riccardo Torlonementioning

confidence: 99%

“…In this figure, q has been represented by a tree, /i by a site view (Ceri et al, 2003), and p by a table.…”

Section: Configurationsmentioning

confidence: 99%

“…h is an abstract hypertext definition expressed in WebML (Ceri et al, 2003), a conceptual model for Web application which which allows us to describe the structure of Web pages in a tight and concise way, by abstracting their logical features;…”

Section: Configurationsmentioning

confidence: 99%

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An Extensible Technique for Content Adaptation in Web-Based Information Systems

Virgilio

Torlone

2005

IFIP — The International Federation for Information Processing

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Adaptive Web information systems need to exploit information about the context of the chent in order to dehver, in an appropriate way, relevant information. In this paper, we present a general approach to this problem that is able to handle heterogeneous context information and different coordinates of adaptation. The approach is based on a general notion of profile that can be used to represent a variety of contexts at different level of details. Client profiles, possibly expressed in different formats, are wrapped and translated into such a general representation. The analysis of profiles drives the generation of an interface configuration. A configuration specifies, at the various layers of a Web based Information System (content, navigation and presentation), how to build a response that meets the requirements of adaptation of the profile. We describe architecture and functionality of a prototype implementing such adaptation methodology and illustrate practical examples of use of the prototype.Keywords: Adaptive Information Systems, Context awareness, Data Intensive Web Sites, Heterogeneous profiles INTRODUCTIONAn ever increasing number of mobile devices, such as PDAs and next generation phones, can be deployed today to provide everywhere and any time access to the Web. This scenario presents a number of challenges, especially when it comes to data-intensive applications, mainly because these devices offer limited computing capabilities. It follows that a novel and fundamental requirement of modern Web based Information Systems is the ability to adapt and personalize content delivery according to the context of the client (a human being or an application). There 108 Roberto De Virgilio and Riccardo Torloneis no accepted definition of context, but the term is a usually adopted to indicate "a set of attributes that characterizes the capabilities of the access mechanism, the preferences of the user and other aspects of the context into which a Web page is to be delivered" (W3C Device Independence Working Group, 2003). These may include the access device, the network QoS, the user preferences, the location, and so on.Many approaches have been proposed to the problem of the design and the implementation of an adaptive Web based information system (Bickmore et al, 1999;Ceri et al, 2000;Ceri et al, 2003; KieBling, 2002; Leubner and Kie, 2002;Gu and Helal, 2004;Pastor et al, 2003;Schwabe et al, 1996). However, they are often specific solutions, suited only for predefined adaptation requirements (usually device characteristics and user preferences) and hardly reusable for adding new adaptation functionality to existing systems. In these approaches a relevant problem that has received little attention is the large heterogeneity of formats used to express context information: text files in ad-hoc format, HTTP headers, XML files over specific DTD's, RDF (Lassila and Swick, 1999;Brickley and Guha, 2003), CC/PP (Klyne et al, 2004).In our study, we focus our attention,on the large category of data intensive Web ...

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Section: Roberto De Virgilio and Riccardo Torlonementioning

confidence: 99%

“…In this figure, q has been represented by a tree, /i by a site view (Ceri et al, 2003), and p by a table.…”

Section: Configurationsmentioning

confidence: 99%

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An Extensible Technique for Content Adaptation in Web-Based Information Systems

Virgilio

Torlone

2005

IFIP — The International Federation for Information Processing

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“…The experiments adopt WebML as a Domain Specific Language [8]. The WebML metamodel [21] specifies the constructs for expressing of the data, business logics, hypertext interface, and presentation of a Web application.…”

Section: Implementation Experiencementioning

confidence: 99%

Searching Repositories of Web Application Models

Bozzon

Brambilla

Fraternali

2010

Lecture Notes in Computer Science

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Abstract. Project repositories are a central asset in software development, as they preserve the technical knowledge gathered in past development activities. However, locating relevant information in a vast project repository is problematic, because it requires manually tagging projects with accurate metadata, an activity which is time consuming and prone to errors and omissions. This paper investigates the use of classical Information Retrieval techniques for easing the discovery of useful information from past projects. Differently from approaches based on textual search over the source code of applications or on querying structured metadata, we propose to index and search the models of applications, which are available in companies applying Model-Driven Engineering practices. We contrast alternative index structures and result presentations, and evaluate a prototype implementation on real-world experimental data.

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“…We introduce a model-transformation framework for test cases, and a prototype implementation of this framework that relies on concrete modeling languages: the CIM level consists of BPMN models [27], which express the multiactor processes served by the application; at the PIM level, we use a specific Web application DSL, WebML [10], which expresses the data, business logic and front-end interface of the Web/SOA application that supports the business processes specified at the CIM level. The CIM to PIM to PSM transformation is provided by a commercial tool suite, called WebRatio [3].…”

Section: Introductionmentioning

confidence: 99%

Multi-level Tests for Model Driven Web Applications

Fraternali

Tisi

2010

Lecture Notes in Computer Science

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Abstract. Model Driven Engineering (MDE) advocates the use of models and transformations to support all the tasks of software development, from analysis to testing and maintenance. Modern MDE methodologies employ multiple models, to represent the different perspectives of the system at a progressive level of abstraction. In these situations, MDE frameworks need to work on a set of interdependent models and tranformations, which may evolve over time. This paper presents a model transformation framework capable of aligning two streams of transformations: the forward engineering stream that goes from the Computation Independent Model to the running code, and the testing stream that goes from the Computation Independent Test specification to an executable test script. The "vertical" transformations composing the two streams are kept aligned, by means of "horizontal" mappings that can be applied after a change in the modeling framework (e.g., an update in the PIM-to-code transformation due to a change in the target deployment technology). The proposed framework has been implemented and is under evaluation in a real-world MDE tool.

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Models and tools for designing data-intensive web applications

Cited by 43 publications

References 0 publications

An Extensible Technique for Content Adaptation in Web-Based Information Systems

An Extensible Technique for Content Adaptation in Web-Based Information Systems

Searching Repositories of Web Application Models

Multi-level Tests for Model Driven Web Applications

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