What is HL7?: An acronym for Health Level 7, it is a standard for healthcare and is the interface standard for communication between various systems employed in the medical community.

What is EAI?: Enterprise Application Integration (EAI) enables data propagation and business process execution throughout the numerous distinct networked applications as if it would be a unique global application. It is a distributed transactional approach and its focus is to support operational business functions such as taking an order, generating an invoice, and shipping a product.

What is Biztalk?: BizTalk is an industry initiative started by Microsoft and supported by a wide range of organizations like SAP, CommerceOne and Ariba. This initiative is establishing a set of guidelines for how to publish schemas in XML and how to use XML messages to easily integrate software programs together in order to build rich new solutions.