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Is threat modeling useful outside of application development? Is it a useful tool for doing operational assessments of information systems already in existence?

I am confused how threat modeling methodologies like STRIDE correlate with risk assessment techniques such as defined in NIST 800-30.

Pretty much all if have read about threat modeling is in the context of software development.

Thanks!

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Social engineering is something operational security needs to address. The model still applies, for example, spoofing identities can by done by finding a companies protocols, then impersonating a forgetful, new, or overworked coworker, just "trying to do your job", over the phone etc.

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Thanks! As a follow up question, how does threat modeling differ from risk assessment? When comparing the high level approach to each they seem very similar e.g., identify threats, vulnerabilities, and rate the likelihood and impact. –  m3ta Nov 23 '13 at 16:23
    
Risk assessment seems to be more concerned with the possibility and impact of a vulnerability, whereas threat modeling has more to do with the means in which a vulnerability is accomplished. –  tuson Nov 25 '13 at 10:47

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