The first four shapes in the flowchart shapes have vague/generic names.
Perhaps these can be extended/replaced with the proper function of these
shapes for flowcharts.

in stead of:
  A box with text inside
use the string:
  Process

(perhaps split this into a nonsquare retangular box for Process and a
square box for Auxiliary Operation, or make the string Process / Auxiliary
Operation)

in stead of:
  A parallelogram with text inside
use the string:
  Input/Output

in stead of:
  A diamond with text inside
use the string:
  Decision

in stead of:
  A ellips with text inside
use the string:
  Connector

There are also some other string that could use names which are more extensive

in stead of:
  Terminal
use the string:
  Terminal Interrupt

There are also some shapes missing

a 3D version of Punched Card which is called Card Deck

and a version of Punched Card which is called Card File with on the top
right corner an extra corner like (ASCII art):
         ___
 _________  |
/         | |
|         |
|         |
|_________|

And an Offpage Connector is missing.

More info on ISO Standard 1028 "Information Processing -- Flowchart
Symbols" I've scanned in and can be found overhere (from 16th of June onwards)

http://www.animus-imperat.com/pub/flow1.jpg
http://www.animus-imperat.com/pub/flow2.jpg
http://www.animus-imperat.com/pub/flow3.jpg

I hope this all is usefull for the dia shapes.