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Intrusion Prevention Fundamentals by Jonathan Hogue, Earl Carter

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Chapter 2. Signatures and Actions

Before you decide to buy a product of any kind, you usually want to know exactly what it is you’re buying. That way, you don’t get something you don’t want. This seems like a reasonable goal, but achieving this goal isn’t always easy. What’s challenging is the vocabulary used to describe what the product does and how it works. Two different products might have a feature with the same name, but the feature in each product might actually be completely unrelated. Without an industry agreed-upon set of definitions, product marketing can use terminology to make each product appealing to customers, even if this usage makes it difficult for customers to compare the functionality between different IPS products.

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