The first time I learned about Network Management, back in 1995, was
with the Telecommunications Management Network (TMN) Reference Model,
which is described in ITU-T Recommendations M.3010 and M.
In addition to dividing the problem into the fault, configuration,
accounting, performance and security (FCAPS) functional areas of
management, it struck me as very sensible that the
TMN
would establish theelement,
network, service, and business
management layers. Figure 1 shows this proposed architecture.
But, frankly speaking, although this is a sound model, considering the Brazilian telecom landscape, almost no operator (that I know of) has gone beyond the element and network management layers. There’s trouble with the functional areas too — very few operators went beyond fault management — but I’ll stick with the management layer problem in this dispatch.
In
this document from the Goldratt Institute there’s something that gave me reason to pause when I read it.“The core constraint of virtually every organization […] is that organizations are structured, measured, and managed in parts, rather than as a whole. The results of this are lower than expected overall performance results, difficulties securing or maintaining a strategic advantage in the marketplace, financial hardships, seemingly constant firefighting, customer service expectations being rarely met, […] and chronic conflicts between people representing different parts of the organization, to name a few.”
Sound familiar to you?
Ler mais em
Operator Metrics that Matter: From Network Metrics to Business Metrics!
e ver a figura acima e outras, em tamanho normal.