introduction: with the increasing role of the internet as one of the most important sources of information on the one hand, and the enhancement of its usability on the other, it is necessary for web designers and developers to be familiar with the criteria that make a website usable. therefore, this paper aimed to provide knowledge about the interactivity, changeability , and non-textual conten...

MViews attempts to abstract out the common features of multi-view editing environments that support integrated textual and graphical programming with consistency management. It provides a conceptual model and reusable object-oriented framework for constructing interactive programming environments that provide multiple textual and graphical views. It supports multiple views of a base document, m...

We introduce a new visual programming system VisualProlog. The system addresses classic issues of visual interfaces: layout, shape, colour, and iconography; and those of particular concern to visual programming: multiple views (visual abstractions), synchronised views, integration of visual and textual dimensions, visual debugging, cognitive dimensions, and the problems of scale. We brieey desc...

We introduce a new visual programming system PrologSpace. The system addresses classic issues of visual interfaces: layout, shape, colour, and iconography; and those of particular concern to visual programming: multiple views (visual abstractions), synchronised views, integration of visual and textual dimensions, visual debugging, cognitive dimensions, and the problems of scale. We brieey descr...

SPE is a software development environment which supports multiple textual and graphical views of a program. Views are kept consistent with one another using a mechanism of update records. SPE is useful throughout all phases of the software development life-cycle. It provides support for conceptual level object-oriented analysis and design using diagrams, visual and textual programming, hypertex...

MViews abstracts out common features of multi-view editing environments that support integrated textual and graphical programming. It provides a conceptual model and reusable object-oriented framework for constructing such environments. Multiple views of a base document are supported with consistency automatically maintained between each of the views. MViews has been used to construct a visual ...

This work was supported in part by the Natural Sciences and Engineering Research Council of Canada. Program understanding tools typically offer built-in visual representations of the subject software, such as call graphs and class hierarchies, and textual representations, such as cross-reference listings and exact-interface reports. It is useful to bundle a number of these visual and textual fr...

Program understanding tools typically ooer built-in visual representations of the subject software, such as call graphs and class hierarchies , and textual representations, such as cross-reference listings and exact-interface reports. It is useful to bundle a number of these visual and textual frames, with some annotation, into a view for redocumenta-tion purposes. For large, legacy software sy...

In modern Integrated Development Environments (IDEs), textual editors are interactive and can handle intermediate, incomplete, or otherwise erroneous texts while still providing editor services such as syntax highlighting, error marking, outline views, and hover help. In this paper, we present an approach for the robust synchronization of interactive textual and graphical editors. The approach ...

MViews is a framework for constructing visual programming environments. It supports multiple views of a base document, maintaining consistency between each of the views. MViews has been used to construct a visual programming environment for an object-oriented language featuring both graphical and textual views of the program. Other applications of MViews under development include entity-relatio...