Re: FpML-VALID Points Multiplier in FX

["Anthony B. Coates (Londata)" <abcoates@xxxxxxxxxxx>]

One possibility, instead of a decimal <pointsMultiplier>, would be to have  
an integer <pointsShift> (??) element where the integer value indicates  
how many places to move the decimal point left or right.  That would  
remove any need for any kind of facet.  Is that an option, or is this  
already baked into the Schemas?  I don't know the history.

An enumeration could be applied to <pointsMultiplier>.  It should be  
possible to enumerate all of the likely values (and a few more at each end  
of the range for safety).

Or, two patterns could be applied to the value (in a simple type with two  
patterns, the two patterns are OR'd together).  One pattern would be for  
values >= 1: 10*
The other pattern would be for values < 1: 0\.0*1

Cheers, Tony.

On Tue, 27 Jul 2010 13:49:55 +0100, Irina Yermakova <IYermakova@xxxxxxxx>  
wrote:

> FpML FX WG is looking for Valid WG advice on how  to restrict the values  
> of "pointsMultiplier" (below) to 10^x (1, 0.1, 0.01, 0.001, 0.0001, etc)
>
>
> *         a fix factor for the forward points ("/fpml-fx-5-0.xsd"):
>
> -          Within 'ExchangeRate', refactored an existing element  
> 'forwardPoints' with a new complex type 'ForwardPoints' that includes  
> 'points' of type 'xsd:decimal' and an optionally 'pointsMultiplier' (as  
> a scaling factor for those points) of type 'PositiveDecimal'.
>
>
>
> [cid:image001.jpg@01CB2D68.AF8C3040]
>
>
>
> This would allow to express fwd points in adjusted/ non adjusted form.
>
> -          If the 'pointsMultiplier' is 1, then the fwd points are non  
> adjusted.
>
> <forwardPoints>
>
> <points>0.0045</points>
>
> <pointsMultiplier>1</pointsMultiplier>
>
> </forwardPoints>
>
> -          If the 'pointsMultiplier' is a fractional number, then  
> forward points are adjusted, according to the scaling factor/fwd tick  
> size for the orientation of  the quoteBasis.
>
> <forwardPoints>
>
> <points>45</points>
>
> <pointsMultiplier>0.0001</pointsMultiplier>
>
> </forwardPoints>
>
>
>
>
> Thank you,
> Irina Yermakova
>
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--
Anthony B. Coates
Director and CTO
Londata Ltd
abcoates@xxxxxxxxxxx
UK: +44 (20) 8816 7700, US: +1 (239) 344 7700
Mobile/Cell: +44 (79) 0543 9026
Skype: abcoates
Data standards participant: genericode, ISO 20022 (ISO 15022 XML),  
UN/CEFACT, MDDL, FpML, UBL.
http://www.londata.com/

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