We're now going to look at two opposite ends of the spectrum: database normalisation (which is about making data highly structured) and hypermedia systems (which is data that has very little structure). 

1. Describe the overarching goal of database normalisation, and the specific objectives that achieve this goal.
2. Identify the problems with this flat-file database and explain the steps by which it can be normalised.
3. Discuss the following statement: "Searching through a hypermedia system is particularly challenging when compared to a flat-file or relational database, but it is also particularly rewarding."
4. Compare and contrast the ways in which web directories and search engines 'solve' the hypermedia search problem.
5. Identify current instances of web directories, and give examples of when a web directory would be more useful than a search engine.
6. Outline the way in which Google's PageRank algorithm sorts web pages for relevance.
7. Describe the ways in which metadata can (a) be helpful when used properly and (b) be abused by malicious parties.