Roll Film: Back to CyberCinema
In the previous chapter, we built a sample requirements document for a proposed CyberCinema movie review Web site. In the case of CyberCinema, the answer to the question “What is the data?” seems quite simple—movie reviews. Application designers have to be suspicious by nature, and this answer is suspiciously simple. Delving into this answer a little deeper, we can ask, “What are movie reviews?” Movie reviews essentially are articles, and articles consist of paragraphs of written text. The subject matter is movies. Movie reviews are written by someone, so there's author information as well. A data model begins to take shape, as shown in Figure 4-3.
Figure 4-3. First cut of CyberCinema data model diagram
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