Actually it was BT's own ISO 9000 based system we spent about 7/8 months on the design/spec stage then 2 of us plus an oracle contractor did the development in a 12 week sprint - so it was a sort of hybrid approach.

SMDS/ATM was fairly new at the time our system was designed to manage the kit in the exchanges so that you didn't have some one accidentally shutdown the entire janet university network.