2.1.1207 Part 1 Section 20.1.2.2.17, graphicData (Graphic Object Data)

a.   The standard implies that the uri attribute is optional.

Office requires the uri attribute.

b.   The standard does not enumerate any known servers for processing the contents of the graphicData element.

Office implements a finite set of servers for processing the contents of the graphicData element. Office uses the uri attribute to determine the contents of the graphicData element, as described in the following table:

URI

Root Element

Ref

http://schemas.openxmlformats.org/drawingml/2006/table

tbl

"[ISO/IEC-29500-1] §21.1.3.13; tbl"

http://schemas.openxmlformats.org/drawingml/2006/diagram

relIds

"[ISO/IEC-29500-1] §21.4.2.22; relIds"

http://schemas.openxmlformats.org/drawingml/2006/chart

chart

"[ISO/IEC-29500-1] §21.2.2.26; chart"

http://schemas.openxmlformats.org/drawingml/2006/picture

pic

"[ISO/IEC-29500-1] §20.2.2.5; pic"

http://schemas.openxmlformats.org/drawingml/2006/compatibility

legacyDrawing

"[ISO/IEC-29500-4] §17.2.2.1; legacyDrawing (Legacy Drawing Object)"

http://schemas.openxmlformats.org/drawingml/2006/lockedCanvas

lockedCanvas

"[ISO/IEC-29500-1] §20.3.2.1; lockedCanvas"

http://schemas.openxmlformats.org/presentationml/2006/ole

oleObj

"[ISO/IEC-29500-1] §19.3.2.4; oleObj"