In some of my recent presentations, I've talked about where HR-XML has enjoyed uptake within the broader HR services ecosphere and where it hasn't. See slides 11 and 12 from the deck embedded below (or if the embed is giving you problems, view here). Simply stated, HR-XML has had some success as a starting point for B2B integrations, such as those between applicant tracking systems and screening service providers. This is good. There is a lot of value in such connections. Where HR-XML hasn't proved as useful is for those stakeholders that need a data model that works in a consistent way across HR business processes. I've mentioned in prior posts, the forthcoming 3.0 library goes a long way towards providing the uniform model that has been lacking.
On slide 12, I cover support by "tool and platform" providers. There are a few success stories here, but these are fairly specialized offerings. For example, in one of our recent Webinars, Pilotfish Technology demonstrated an HR-XML-2_5-Enrollment to ASC-X12-834 transformation offered with their XCS eiConsole platform.
With the version 3.0 release, HR standards are much better positioned for some level of support by enterprise application integration (EAI) vendors. This is mainly because the version 3.0 release fits into an architecture that is bigger than just HR. As I've written elsewhere, the version 3.0 library will be the first industry standard to be designed as a plug-in to the Open Applications Group Integration Specification (OAGIS).