Market Data Definition Language (MDDL)
Google
The Financial Information Services Division of the Software & Information Industry Association
MDDL 2.5-beta : daysInYear
MDDL 2.5-betaSchema DocumentationNo Graphics?
Index: MDDL 2.5-beta Schema Documentation
Element: daysInYear
Description: Count of the number of days in a standard year used in the relevant calculation.
Used by: accrual 
Attributes:  
Uses: sequence 
Classification: Quantity "property"
Diagram: