Categorization of Rules
If we try to categorize rules, we quickly find out that there are many dimensions to consider. For example, there are attributes such as the following:
Where to execute (in which tier/layer) When to execute Degree of complexity (simple constraints, spanning several fields, spanning several instances, and so on) Starting actions or not And so on, and so forth
I'm sorry, but I won't be dealing with this much other than directing you to some other books on the subject, such as von Halle's book [von Halle BRA], the one by Ross [Ross BRB], and Halpin's [Halpin IMRD]. You will find that these books are pretty data-focused, but they are nevertheless highly interesting.
Let's try to get started from another angle. Let's define some principles and then get our hands dirty.
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