You may recall a recent article that provided a discussion around the demarcation between OSS and BSS, which included the following graph:
Note that this mapping is just my demarc interpretation, but isn’t the definitive guide. It’s definitely open to differing opinions (ie religious wars).
Many of you will be familiar with the framework that the mapping is overlaid onto – TM Forum’s TAM (The Application Map). Version R17.5.1 in this case. It is as close as we get to a standard mapping of OSS/BSS functionality modules. I find it to be a really useful guide, so today’s article is going to call on the TAM again.
As you would’ve noticed in the diagram above, there are many, many modules that make up the complete OSS/BSS estate. And you should note that the diagram above only includes Level 2 mapping. The TAM recommendation gets a lot more granular than this. This level of granularity can be really important for large, complex telcos.
For the OSS/BSS that support smaller telcos, network providers or utilities, this might be overkill. Similarly, there are OSS/BSS vendors that want to cover all or large parts of the entire estate for these types of customers. But as you’d expect, they don’t want to provide the same depth of functionality coverage that the big telcos might need.
It’s a really subjective mapping because each telco, provider or vendor will have their own perspective on mandatory features or modules. Hopefully it provides a useful starting point for planning a low complexity OSS/BSS.