CONCLUSION AND FUTURE WORK

This chapter introduces a new web graph display system. The major feature of the system is that it provides visible subsets of the web graph for WWW navigation. Our web sub-graph display technique creates an automatic layout that does not exceed the viewing area and which has no overlapping nodes.

Recent feedback from users is that they would like to combine our web graph interface with a current web browser (such as Netscape) for web navigation. It seems that they do not like to use the web graph interface alone for navigation.

We will continue to investigate layout techniques that will enhance the potential usability of the system. Purchase (1998) has presented a method for testing presentation and usability of graph layouts. We can adopt this method to evaluate the performance of our web graph layout.

We need to conduct usability studies of end-users to see whether they prefer this kind of interface for WWW navigation over more traditional styles.