9/30/15
Muddiest Points from Week 4
1. You made a compelling statement about how a bad database is worse than the file system data process. Can you give an example of that? When did this happen?
2. The words and ideas about the entity-relationship model were clear to me. When you started to use the graphic representation of it it got a little confusing.
3. I noticed that the many-to-many relationship was labelled M:N. Is there ever a time when it is M:M, that is, when it is internal, like the relationships among the group and not with a different group?