e/Stovepipe system

Information
has gloss	eng: In engineering and computing, a stovepipe system is a legacy system that is an assemblage of inter-related elements that are so tightly bound together that the individual elements cannot be differentiated, upgraded or refactored. The stovepipe system must be maintained until it can be entirely replaced by a new system.
lexicalization	eng: stovepipe system
instance of	e/AntiPattern