What are some of NIEM's beneficial characteristics?

Real-world situations sometimes yield data that are too irregular to model efficiently via the Unified Modeling Language™ (UML) class diagrams stipulated by the Information Exchange Package Documentation (IEPD) lifecycle process. WIJIS recently encountered such a situation and found an effective and generally applicable solution that is well supported by National Information Exchange Model (NIEM) — external unconstrained Resource Description Framework (RDF) attachments defined at the Instance level, rather than the Class level.

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