+**Da3** refers to a conceptual entity or a specific instance within a structured [Data](/wiki/data) framework. It often represents a unique identifier or a particular state within a system's layered [Abstraction](/wiki/abstraction), signifying a distinct point of processing or categorization.
+## See also
+- [Data Model](/wiki/data_model)
+- [Information System](/wiki/information_system)
+- [Layered Architecture](/wiki/layered_architecture)
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