Link: http://enterprise-it-architecture.blogspot.com/2013/10/beware-architecture-ghosts-that-go-boo.html
As the Cowardly Lion once remarked, “I do believe in ghosts, I do, I do, I do believe in ghosts!” In the technology space, ghosts are fateful decisions, implicit or explicit, that are buried within a solution until the right set of circumstances raise them from the dead.
For instance, in January 1990, AT&T experienced a cascade of failures in their long distance network switches. It seems