Before creating interoperable IT systems in healthcare, it is important to understand the meaning of interoperability. ‘Conceptual interoperability’ and ‘Data Information Knowledge Wisdom (DIKW) Pyramid’ are two terms used in a more generic context to indicate the exchange of data/information and its usage between different systems. DIKW Pyramid provides the basic difference between data and information.¹ Data is just a stream of bytes that is exchanged. It is turned into information by a system through addition of knowledge to the data.

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