In terms of engineering documentation for space-qualified electronic components, what is an "SCD"? See, for example, page 6 of this document.
Is an SCD a common document and does it apply to other (non-electronic) components?
Looking at this particular vendor's corresponding web page, there is a link to their company's generic SCD for the particular component class in question, but it sheds no light on the meaning of the "SCD" abbreviation.