When people ask me - "so, what do you do as a locksmith" - I usually
say something like- "mostly access control jobs..." - well that's a
trap - because immediately afterwards I find myself expanding on what
that means. I was surprised that most people don't realise how access
control manifests itself in the locksmith business.
I'm kinda tired of explaining this every time - so I sat down and
Googlized the term and found this great article that portraits in
length what access control is...it's just an overview of the subject -
but well worth the reading. The good thing - is that now I'll just
refer people to that article - whenever I'm asked: "what's access
control?".
Access control article:
http://ezinearticles.com/?Access-Control---What-Is-Access-Control&id=311529