1 Assume the World Wide Web was a hypertext system that made use of a central link data base to link the documents. What would be the advantages and disadvantages of this approach?
2 Why is the test of independent invention (TOII) so crucial for the success of the World Wide Web?
3 Why was the Error 404 in combination with broken links so important for the success of the web?
4 Why were URLs needed to create the World Wide Web? What design goals have been reached?