What does SMT mean in management?

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I find that many databases are named with a prefix 'smt_' in industry, for example, 'smt_customer_profile', what dose 'smt' mean? Is there any special meaning in this prefix?

I have asked my supervisor about this question, getting the answer that the reason behind this naming is very geek style, which really invokes my curiosity! So I tried to google it, some interpretations are like:

• satisfiability modulo theories (SMT)

• Simultaneous multithreading

• Small Mini-Tower

all seemingly not the right answer...

So does anybody know about this, many thanks!!!