STRAMBIO/LACOSTE -- Add CoverGlassRef, SampleHolderRef and MountingMediumRef to ColoredBeadSlide (or OpticalStandard-APE)

[strambc]

Element name(s): ColoredBeadSlide (or OpticalStandard-APE)

Justification for the addition (brief and compelling):

Discussion about WG4 and WG5 metadata requirement

Full description of the proposed addition (enough detail to implement):
your input here

Current Element name: ColoredBeadSlide (or OpticalStandard-APE)

Brief description of the change and its rationale (short and compelling):

ColoredBeadsSlide is linked with ColoredBeads but not to any description of the CoverGlass, Slide (i.e., SampleHolder) or MountingMedium used to prepare the slide.

This can be fixed by adding a link (i.e., Ref) in (ColoredBeadSlide (or OpticalStandard-APE)

New Field name: CoverGlassRef, SampleHolderRef and MountingMediumRef

New Element/Field description: __

New Element/Field Tier: Tier 2

New Element cardinality: 1:1

New Field Data type: These are SimpleTypes

New Field requirement level: Optional