Defining Business Services
I know this is likely a personal choice/business driver kind of question, but I am curious as to your opinions, so please feel free to give em!
As we start to think about defining business services, I get most of the technical components of that process, attaching assets, SLAs, users, owners, etc. What I am more interested in is the conceptual side of it all.
Do you define software apps as business services, do you define services as a collection of apps/hardware to form a business segment, do you define email as a service, or would you go higher and define electronic communications as a service (to include Skype for example?)
Thoughts?
Answers
Business services, as far as your users are probably concerned, are typically more along the lines of your last example. But within them are the supporting and enabling services that allow that business service to be provided. Your example of "Electronic Communications" with "Skype" included is a good one. Perhaps if your users think of it as "Messaging" instead of "Electronic Communications", then the service is called "Messaging," with "Email" and "Chat (Skype)" belonging to it. Within email, we should start seeing Distributed Applications such as Skype and Exchange, if you are letting SCOM define (part of) your services. If not, building the service manually in SCSM still makes sense so that all the servers that make up your application are properly related, and the reliance on that application and all of its components can also be accounted for.
The most important point made within this model is that you always start with the way that your users see your service, then work down. You will probably be asked to report that way at some point, so why not be prepared? It is also never a bad idea to help IT folks deep in the trenches of their work to gain some customer-based perspective.
Your question is about the concept, and like I alluded to above, the concept should be fulfilling something for you or else it's just a ton of work with a bad ROI. In my case (everyone's list will almost certainly vary):
The old-timers can't get their head around Business Services; instead, they carry the idea of App Portfolio for in-house and Software lists for store-bought (both in SharePoint). I think their idea is to port this data into our Service Manager CMDB. I like the idea of coming at this from the end user instead of the IT department.