Information Architecture 

In its broadest definition, a discipline, process, and/or program focusing on the design and organization of data, unstructured information, and documents. In the context of Enterprise Architecture, it is a synonym for Data Architecture, which is one of the four Enterprise Architectures (with Application Architecture, Business Architecture, and System Architecture). In the context of designing documents and web pages, it is the structuring of large sets of information, as opposed to the development of the content of any content unit within the larger set.