Can you recheck this bit of the description in 6.1:
"This is clear by comparing the legal responsibilities of the infrastructure provider, which are for generic IT service management to a procurer, which may be a healthcare data management entity"
That's very hard to understand with the double "which" and then the comparison of the "legal responsibilities of the infrastructure provider" to a "procurer" (which seems to be an odd comparison you probably don't mean, strictly speaking)
EHR IM + COMMON RM - typo only
WHat constitutes a 'system' in this context is described in more detail in the Architecture Overview.