Blog · 6 articles
One decision per article.
Not news, not product launches. Each of these takes a single decision that turns up on nearly every project — and works it through far enough that you can make it yourself, with the arithmetic attached and the uncertainty admitted.
All articles
Newest first.
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SCIF vs. a locked room: what accreditation actually requires
Construction does not make a SCIF. An accreditation does — and the difference decides your budget, your schedule and whether the space can be used at all.
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Storage math: how many terabytes do you actually need?
The formula takes one line. The input everybody guesses is bitrate — and that is where every storage quote goes wrong.
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What Section 889 means when you buy cameras
Two prohibitions, five named companies, a great deal of relabelled hardware — and one question to ask before anything ships.
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Fail-safe vs fail-secure: the door decision that gets people hurt
Two words that describe only what happens when power is removed — and a third idea, free egress, that neither of them covers.
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Pixels per foot: how to specify a camera that actually identifies people
Megapixels are a specification. Pixels on the target are a result. Here is the arithmetic that connects them.
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What a security design package should contain
If two contractors can read your documents and reach different quantities, you do not have a design package. You have a wish.
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