Problem:
Question: Draw the E-R diagram in Visio showing only entities and relationships between them. Make sure you identify the weak entity sets, and also cardinality and participation constraints for each relationship using appropriate symbols in your E-R diagram.
General Description
The Pleasantville Community Theater Group is a nonprofit organization of about 200 members, amateurs who enjoy producing and performing in plays. Members pay dues of $50 per year. The group produces two plays each year, and the members work on the productions. Not all members are active workers every year.
Could someone explain this to me?