טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentKfir Niv
SubjectNLink: Web Based Application for Reducing the Cognitive Load
of Hypertext Navigation
DepartmentDepartment of Education in Science and Technology
Supervisor Professor Emeritus Uri Leron


Abstract

With hypertext, a document can be constructed hierarchically, listing its keywords and ideas as links. The result would be a details-free, abstract text, suitable for initial reading, providing the reader with the essence of the document. Key concepts and main ideas in a text can be presented using links which point the reader to detailed and more explicit levels of reading.

Readers who are already familiar with the concepts presented in the text may choose to read only the most general level of presentation, while less familiar readers can fill in more details and explanations by linking to lower levels in the hierarchy.

However, this freedom comes with a price of navigation difficulties, memory overload, and the need for constantly making decisions. The problem of  "getting lost" in hypertext is particularly widespread.

This project offers a partial solution to a variety of navigation and orientation problems in the use of hypertext. The suggested solution is based on the idea of incorporating the linked text within the main text at the point of the link, instead of diverting the reader to another document where he or she might get lost. To implement this solution, the NLink (Nested Link) software was developed. The NLink software includes two main components: NLink Generator and NLink Viewer.

The NLink generator is a software application which imports MS word files, in which certain words have been tagged as links. By ‘dragging & dropping’ file names on words marked as NLinks a nested link is created.

The NLink viewer is a Web application designed for displaying files generated by the NLink Generator.