CSC 455 NAME:

Fall 2009

Lab 6

10 points

From the Olympic facilities description in Lab 4, a possible EER diagram is given below. Give three possible schemas that correspond to three different ways of handling specialization (Options A, B, and C):

SPORTS COMPLEX

ONE-SPORT

MULTI-SPORT

EVENT

1

M

Official

N

M

1

M

(Why isn’t D an option here?)