
4.2 Underlying Problems of PBE 63
problems (Cypher 1993), one important topic in the discussion was lacking:
application domains. Since the degree of difficulty in solving these prob-
lems depends on the application domains (text editing, graphical editing,
Web browsing, or others), we should further discuss this issue.
This chapter will first explain the general problems of PBE and show
how they can be avoided to some extent in the Web-browsing domain.
Then, two PBE systems for Web browsing will be described,
Internet Scrap-
book
and SmallBrowse, followed by a concluding discussion of their strate- ...