Hi,

An interesting but little "marketed" notation appears in the book:
     Title: Object-Oriented Systems Analysis
     Authors: David W. Embley, Barry D. Kurtz, Scott N. Woodfield
     ISBN: 0-13-629973-3
     Publisher: Yourdon Press
     Year: 1992

Regards,
Luis Quijano
quijano at panasoft.com
p.s.  Check-out the Smalltalk Links at http://www.panasoft.com/stlinks/
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