Market Data Definition Language (MDDL)
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The Financial Information Services Division of the Software & Information Industry Association
MDDL 2.5-beta : compulsory
MDDL 2.5-betaSchema DocumentationNo Graphics?
Index: MDDL 2.5-beta Schema Documentation
Element: compulsory
Description: Indicates if the event or item is compulsory (for example when an outstanding offer to purchase shares becomes compulsory when the offeror has compelling ownership).
Used by: offer 
Attributes:    
Uses: sequence  period 
Classification: Simple "property"
Diagram: