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SEPIA provides implementations for various types of Petri nets. Along Place/Transition-nets, it supports Petri nets with distinguishable token colors and defines coloured workflow nets, where coloured tokens are interpreted as data elements used during process execution. To support information flow analysis of processes, SEPIA defines so-called IF-Nets, tailored for security-oriented workflow modeling which enable users to assign security-levels (HIGH, LOW) to transitions, data elements and persons/agents participating in the process execution.

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		RELAX NG implementation of the Petri Net Type Definition for
		Colored Petri Nets (CPN). This PNTD re-defines the value
		of nettype.uri for CPNs.
		
		File name: cpnet.pntd
		Version: 2014
		(c) 2014
		Adrian Lange
		IIG Telematics
		University of Freiburg
		Germany
	

	
		The CPN type definition.
		This document also declares its namespace.
		
			T. Stocker, F. Böhr: IF-Net: A Meta-model for Security-oriented Process Specification. University of Freiburg. 2013.
		
	

	

	

	
		
			The URI value for the net type attribute, declaring the type of CPNs.
		
		
			http://ifnml.process-security.de/grammar/v1.0/cpnet
		
	

	
		
			Label definition for the initial marking in CPNs.
			It consists of the element initialMarking containing
			an non-negative integer value for the amount of
			control-flow tokens.
		
		
			
				
					
						
					
				
				
				
			
		
	

	
		
			Label definition for the arc inscriptions in CPNs.
			It consists of the element inscription containing
			an non-negative integer value for the amount of
			control-flow tokens and a set of color token names.
		
		
			
				
					
						
					
				
				
				
			
		
	

	
		
			A place of a CPN may have an initial marking of
			control flow tokens and color tokens and a capacity
			for the token colors.
		
		
			
			
		
	

	
		
			A transition t of a CPN n may be silent. Default is false.
		
		
	

	
		
			An arc of a colored petri net may have a color inscription.
		
		
	

	
		
			Adds a list of color labels with their specific RGB representation.
		
		
	
        
        

	
		
			A color label, represented as a string value.
			Its sub-elements occur in any order.
		
		
			
		
	

	
		
			Color set used in the initial marking of places and the inscription of arcs.
			It consists of color elements for each color other than black.
		
		
			
				
					
				
			
		
	

	
		
			An annotation graphics  element for the subject descriptor of a transition.
			Its sub-elements occur in any order.
			It contains the standard annotation content.
		
		
			
		
	

	
		
			An access mode label, represented as some boolean values.
			Its sub-elements occur in any order.
		
		
			
				
					
						
					
				
				
					
						
					
				
				
					
						
					
				
				
					
						
					
				
			
		
	

	
		
			A transition type label, represented as an
			enum value with the choice between "regular"
			and "declassification".
			Its sub-elements occur in any order.
		
		
			
				regular
				declassification
			
		
	

	
		
			A list assigning a RGB color representation to each token label.
		
		
			
				
			
		
	

	
		
			A list entry assigning a RGB color representation to a token label.
		
		
			
				
				
			
		
	

	
		
			A RGB color element containing an integer value for red, green and blue.
			Its sub-elements occur in any order.
		
		
			
				
				
				
			
		
	

	
		
			A color value must be an integer value of the interval [0; 255].
		
		
			0
			255
		
	

	
		
			A list entry for places assigning a token color to capacity.
		
		
			
				
				
					
				
			
		
	

	
		
			A list declaring the capacity per token color for a place.
		
		
			
				
			
		
	

	
		
			The silent element can contain either the value true or false.
		
		
			
				true
				false