There is a small typo in the following document Financial Date Calculations in FpML Validation Working Group Editor: Andrew Jacobs Updated: 2011-01-25 Page 10, the pseudo code for the function PeriodStartDates makes reference to a parameter “startDate” concerning the initial stub, probably it is meant to be “effectiveDate” which is a parameter of the function, whilst “startDate” is not a parameter. Also the function signature refers to “Date termination Date”, it is easier to read if there is no space in the parameter name, so “Date terminationDate”. Gary