“Been a lot of talk over the last year or so regarding the move to smaller, more modular, substitutable apps (think iPhone) to address healthcare IT sector needs, particularly for providers. This discussion has progressed to the point where HHS, in looking to certify EHRs, is also looking at how these small modular EHR apps might also be certified in the broader context of meaningful use. Now how the hell HHS and in particular CMS will be able to determine whether or not a provider is using a host of modular HIT apps to meet meaningful use requirements remains a mystery and probably better left for some future post
Article
John Moore, Chilmark Research, 24 February 2010

