Revisiting requirements in web modelling languages

As a consequence of the great number of web modelling languages arisen in the last few years, some criteria to compare them have to be given. Thus, a few authors have made a recollection of the requirements that these languages should address, but, due to technological changes some new requirements have arisen and others haven’t been addressed by modelling languages, yet. This paper wants to be a stop to review which of the requirements proposed have been overcome, and which ones haven’t been yet. On the other hand, we also want to propose some new requirements in order to adapt the languages to the current technological state

Modelling data intensive web sites with OntoWeaver

This paper illustrates the OntoWeaver modelling approach, which relies on a set of comprehensive site ontologies to model all aspects of data intensive web sites and thus offers high level support for the design and development of data-intensive web sites. In particular, the OntoWeaver site ontologies comprise two components: a site view ontology and a presentation ontology. The site view ontology provides meta-models to allow for the composition of sophisticated site views, which allow end users to navigate and manipulate the underlying domain databases. The presentation ontology abstracts the look and feel for site views and makes it possible for the visual appearance and layout to be specified at a high level of abstractio

Abstracted navigational actions for improved hypermedia navigation and maintainance.

This paper discusses the MESH framework, which proposes a fully object-oriented approach to hypermedia. Object-oriented abstractions are not only applied to the conceptual data model, but also to the navigation paradigm. This results in the concept of context-based navigation, which reduces the end user's disorientation problem by means of dynamically generated, context-sensitive guided tours. Moreover, maintainability is greatly improved, as both nodes and links are defined as instances of abstract classes. I this way, single links and entire guided tours are anchored on type level as abstract navigational actions, which are independent of the actual link instances.Marketing; Data; Model;

Integrating web services into data intensive web sites

Designing web sites is a complex task. Ad-hoc rapid prototyping easily leads to unsatisfactory results, e.g. poor maintainability and extensibility. However, existing web design frameworks focus exclusively on data presentation: the development of specific functionalities is still achieved through low-level programming. In this paper we address this issue by describing our work on the integration of (semantic) web services into a web design framework, OntoWeaver. The resulting architecture, OntoWeaver-S, supports rapid prototyping of service centred data-intensive web sites, which allow access to remote web services. In particular, OntoWeaver-S is integrated with a comprehensive web service platform, IRS-II, for the specification, discovery, and execution of web services. Moreover, it employs a set of comprehensive site ontologies to model and represent all aspects of service-centred data-intensive web sites, and thus is able to offer high level support for the design and development process

Linking with Meaning: Ontological Hypertext for Scholars

The links in ontological hypermedia are defined according to the relationships between real-world objects. An ontology that models the significant objects in a scholar’s world can be used toward producing a consistently interlinked research literature. Currently the papers that are available online are mainly divided between subject- and publisher-specific archives, with little or no interoperability. This paper addresses the issue of ontological interlinking, presenting two experimental systems whose hypertext links embody ontologies based on the activities of researchers and scholars

Can web design methodologies (actually) help practitioners?

There exist many web design methodologies and the new ones are constantly being added to the pool of those offered to practitioners. However as previous research shows, practitioners either do not know, do not use or even do not care for these development approaches. This paper examines web design practice, and the design of visual aspects in particular, in order to establish whether any of the existing methodologies would actually address the practitioners concerns. Through grounded theory analysis, it transpires that from amongst several examined approaches, IS-based web design methods are dealing with great many practical issues which designers perceive as most pressing.<br /

MESH: an object-oriented approach to hypermedia modeling and navigation.

This paper introduces the MESH approach to hypermedia modeling and navigation, which aims at relieving the typical drawbacks of poor maintainability and user disorientation. The framework builds upon two fundamental concepts. The data model combines established entity-relationship and object-oriented abstractions with proprietary concepts into a formal hypermedia data model. Uniform layout and link typing specifications can be attributed and inherited in a static node typing hierarchy, whereas both nodes and links can be submitted dynamically to multiple complementary classifications. In the context-based navigation paradigm, conventional navigation along static links is complemented by run-time generated guided tours, which are derived dynamically from the context of a user's information requirements. The result is a two-dimensional navigation paradigm, which reconciles complete navigational freedom and flexibility with a measure of linear guidance. These specifications are captured in a high-level, platform independent implementation framework.Data; Model; Specifications; Classification; Information; Requirements;

Building dynamic WAP applications using UWE

The great advance of the communications and the importance gained by the mobile systems have increased the development of WAP (Wireless Application Protocol) applications, nevertheless at the present time do not exist methodologies specifically designed for the WAP applications development process. However, in the last years, several methodologies for the web applications development process have been proposed. One of them is UWE (UML-based Web Engineering) [1]. Although this methodology has specifically been developed for web applications, the similarity between web and WAP systems allows us to propose the use of it, to generate a design stage approach for WAP applications and then to create a specific extension of UWE to build WAP applications. In order to obtain this, we present a new UWE based model called WAP navigational model for the navigational design and presentational design steps, which we can use to design WAP systems improving the WAP applications development process.Eje: I - Workshop de Ingeniería de Software y Base de DatosRed de Universidades con Carreras en Informática (RedUNCI

Design Processes For Web-Based Hypermedia Engineering.

The process of designing and developing hypermedia applications is one of the big challenges for today’s hypermedia engineering industry

Building dynamic WAP applications using UWE

The great advance of the communications and the importance gained by the mobile systems have increased the development of WAP (Wireless Application Protocol) applications, nevertheless at the present time do not exist methodologies specifically designed for the WAP applications development process. However, in the last years, several methodologies for the web applications development process have been proposed. One of them is UWE (UML-based Web Engineering) [1]. Although this methodology has specifically been developed for web applications, the similarity between web and WAP systems allows us to propose the use of it, to generate a design stage approach for WAP applications and then to create a specific extension of UWE to build WAP applications. In order to obtain this, we present a new UWE based model called WAP navigational model for the navigational design and presentational design steps, which we can use to design WAP systems improving the WAP applications development process.Eje: I - Workshop de Ingeniería de Software y Base de DatosRed de Universidades con Carreras en Informática (RedUNCI