Note: This post is a follow-up to TEFCA IAS - A Story of Interoperability and Unrealized Potential , where we discussed the structural challenges and limitations facing implementers of TEFCA Individual Access Services (IAS). If you haven’t read that one, it’s probably a good starting point. With the ASTP’s recent Request for Information on the Health Technology Ecosystem , discussions around health IT and interoperability are back in full swing.