Sotiris P. Christodoulou

Evaluation of hypermedia application development and management systems

In this paper we propose and study a framework for evaluating Hypermedia Application Development and Management Systems (HADMS) in relation to specific application requirements. We address the need for HADMS capable to efficiently support the main users involved in the life cycle of hypermedia applications, namely designers, programmers/implementers, authors/administrators and end-users. A HADMS consists of a hypermedia application development and management methodology and the respective environment. In this work, we propose and classify a set of evaluation criteria. These are mainly imposed by real life development and the need to support forthcoming, or next generation, features for hypermedia applications. We also introduce a simple framework for a comparative evaluation of HADMS. Furthermore, we demonstrate the use of the criteria and the framework proposed, for the case of three real-life applications. A representative set of seven HADMS is selected and the evaluation of these systems is carried out, leading to some useful conclusions and suggestions for future work.

Comparative evaluation of javascript frameworks

For web programmers, it is important to choose the proper JavaScript framework that not only serves their current web project needs, but also provides code of high quality and good performance. The scope of this work is to provide a thorough quality and performance evaluation of the most popular JavaScript frameworks, taking into account well established software quality factors and performance tests. The major outcome is that we highlight the pros and cons of JavaScript frameworks in various areas of interest and signify which and where are the problematical points of their code, that probably need to be improved in the next versions.

Web Engineering: The Developers' View and a Practitioner's Approach

The expanding role of the Web as a content and applications deployment platform and the appearance of new computing paradigms, such as thin-client computing, require now more than ever the introduction of concrete development frameworks. Although new approaches, technologies, tools, commercial applications appear daily, limited guidelines or frameworks exist that can assist Web developers in selecting the proper methodology and tools for the design, implementation and maintenance of flexible Web content and applications. Our work, triggered from our experience in implementing the Web presence of several large Greek Governmental organisations, attempts to address the major current and forthcoming problems that Web developers face. We propose a framework (RDF/XML based) that will act as a malleable development support environment, incorporating specific guidelines, which Web developers should always consider. The primary goals are achieving scalability (modular, component-based architecture), re-usability and technology independency in Web development. We focus on hypermedia content and applications.

Digital art 2.0: art meets web 2.0 trend

In this paper, we describe a review of existing Web 2.0 applications and the current or potential usability of them during the lifecycle of digital art projects. More specifically, we outline the characteristics of the various digital art categories, and the features that need to be supported. Afterwards, we present a classification of Web 2.0 applications and we show how they can support the digital art projects in all categories and lifecycle steps, esp. regarding collaboration, as well as some future potentials.

HyperSea: towards a spatial hypertext environment for web 2.0 content

In this paper, we present HyperSea, an environment for importing, organizing and interacting with web 2.0 content. The environment is based mainly on previous research on hypertext systems, spatial hypertext and it tries to overcome presentation limitations of todays popular web 2.0 applications. Content is structured as islands and nodes which may be interlinked and characterized by various levels of visual cues, according to its type and origin. As the resulting content is structured, HyperSea may support alternative views and search operations over it. We present an extensive case-study for illustrating functionality and we organize some future work.

A practitioner's approach to evolving and remodeling large-scale WWW sites

Addresses the issues of evolving large-scale Web sites, in order to migrate them to more flexible forms for developing and managing content and applications. We first present an integrated process model for the life-cycle of a Web site. Next, we focus on specific steps of this model in order to (i) examine a layered, next-generation architecture for large Web sites, providing for content reuse and easier implementation of services and applications, and (ii) discuss the activities of remodeling our existing content infrastructure and applications, according to the specifications of this target architecture. In our case study, we apply the new architecture, through the remodeling activities, in the evolution of the official Web site of the Hellenic Ministry of Culture.