Arbortext IsoDraw > User's Reference > Menus > Objects Menu > Object Info > Creating Object Info > Rules for Names
  
Rules for Names
The rules for names are comparable with those for IDs. Here it is particularly important where you wish to use a name. Below are a few examples:
WebCGM
Only a–z, A–Z, 0–9 and $-+_ are permitted. All other characters and symbols will mean that the name cannot be used in a link.
CGM
Avoid the following symbols:
,
comma
.
point
()
brackets
´“
quotes
spaces
Arbortext IsoDraw
Same as CGM above.
The Validate objects command on the Objects menu allows you to check and correct existing ID entries and names.