Prototype Complex Table: anatomy of a complex table

GCornerNW GCornerNW GColGroupHeading GColGroupHeading
GCornerNW GCornerNW GHeadingA GHeadingB GHeadingC GHeadingD GCornerNE
GCornerSW GCornerSW GSummmaryA GSummmaryB GSummmaryC GSummmaryD GCornerSE
GRowGroup
Heading
LCornerNW LColHeadingA LColHeadingB LColHeadingC LColHeadingD LCornerNE
GRowHeading1 GRowSummary1
GRowHeading2 GRowSummary2
GRowHeading3 GRowSummary3
GRowHeading4 GRowSummary4
GRowHeading5 GRowSummary5
GRowHeading6 GRowSummary6
GRowHeading7 GRowSummary7
GRowHeading8 GRowSummary8
LCornerSW GSummmaryA GSummmaryB GSummmaryC GSummmaryD LCornerSE
LCornerNW LCornerNW LColHeadingA LColHeadingB LColHeadingC LColHeadingD LCornerNE
GRowGroup
Heading
GRowHeading1 GRowSummary1
GRowHeading2 GRowSummary2
GRowHeading3 GRowSummary3