Market Data Definition Language (MDDL)
Google
The Financial Information Services Division of the Software & Information Industry Association
MDDL 2.5-beta : maturityType
MDDL 2.5-betaSchema DocumentationNo Graphics?
Index: MDDL 2.5-beta Schema Documentation
Element: maturityType
Description: Controlled Vocabulary denoting the special conditions on the type of maturity (e.g. extendible, fixed, perpetual)
Used by: maturity 
Attributes:    
Uses: sequence 
Classification: Enumeration "property"
Diagram: