BACM11 — Operating Value Streams

Some organizations have developed what they call operating value streams. Sometimes these arise from application of "Lean" methdology. But, they may also arise from a desire to model the creation of value associated with particular product lines and analyze those representations of value with respect to the generic models of value creation provided by value streams.
Specialization of value streams and stages is disallowed by the BIZBOK (to avoid the common methodological mistake of conflating value streams and processes). Is there a need for operating value streams? Is there a way to represent this that does not violate the BIZBOK?