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Graphics Interchange Format  |  1995-08-06  |  100.6 KB  |  583x324  |  8-bit (165 colors)
   ocr: Technique Chen Trident Reiner/Teorey Tool Chen Excelerator MacFlow with. ADW ADW Symbol Sampler 1:1 PHDE spest - - : 1:N PHODH M:N M N - 10-0CHH FIGURE 4 Different approaches to representing cardinality. Note that Chen and Reiner use a diamond to represent a relationship, while the Trident approach uses a line.