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standard library package ModelingMetadata {
	doc
	/*
	 * This package contains definitions of metadata generally useful for annotating models.
	 */

	private import Base::Anything;
	private import ScalarValues::String;
	private import RiskMetadata::Risk;
	
	enum def StatusKind {
		doc
		/*
		 * StatusKind enumerates the possible statuses of work on a model element.
		 */
	
		open {
			doc
			/*
			 * Status is open.
			 */
		}
		
		tbd {
			doc
			/*
			 * Status is to be determined.
			 */
		}
		
		tbr {
			doc
			/*
			 * Status is to be resolved.
			 */
		}
		
		tbc {
			doc
			/*
			 * Status is to be confirmed.
			 */
		}
		
		done {
			doc
			/*
			 * Status is done.
			 */
		}
		
		closed {
			doc
			/*
			 * Status is closed.
			 */
		}
	}
	
	metadata def StatusInfo {
		doc
		/*
		 * StatusInfo is used to annotate a model element with status information.
		 */
	
		attribute originator : String [0..1] {
			doc
			/*
			 * The originator of the annotated element.
			 */
		}
		
		attribute owner : String [0..1] {
			doc
			/*
			 * The current owner of the annotated element.
			 */
		}
		
		attribute status : StatusKind {
			doc
			/*
			 * The current status of work on the annotated element (required).
			 */
		}
		
		item risk : Risk [0..1] {
			doc
			/*
			 * An assessment of risk for the annotated element.
			 */
		}
	}
	
	metadata def Rationale {
		doc
		/*
		 * Rationale is used to explain a choice or other decision made related to the
		 * annotated element.
		 */
	
		attribute text : String {
			doc
			/*
			 * A textual description of the rationale (required).
			 */
		}
		
		ref explanation : Anything [0..1] {
			doc
			/*
			 * A reference to a feature that provides a formal explanation of the rationale.
			 * (For example, a trade study whose result explains the choice of a certain alternative).
			 */
		}
	}
	
	metadata def Issue {
		doc
		/*
		 * Issue is used to record some issue concerning the annotated element.
		 */
	
		attribute text : String {
		doc
		/*
		 * A textual description of the issue.
		 */
		}
	}
	
	metadata def <refinement> Refinement {
		doc
		/*
		 * Refinement is used to identify a dependency as modeling a refinement relationship.
		 * In such a relationship, the source elements of the relationship provide a more precise and/or 
		 * accurate representation than the target elements.
		 */
	
		:>> annotatedElement : SysML::Dependency;
	}
	
}