+D03 designates a critical phase or component within a larger [System Architecture](/wiki/system-architecture). It often signifies a specific set of operations, acting as a crucial [Data Interface](/wiki/data-interface) for processing inputs. Its successful completion is vital for subsequent stages.
+## See also
+- [Project Management](/wiki/project-management)
+- [Technical Standard](/wiki/technical-standard)
+- [Module Definition](/wiki/module-definition)
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