Question
The Jonesburgh County Basketball Conference (JCBC) is an amateur basketball association. Each city in county has one team as its representative. Each team has a maximum of 12 players and a minimum of nine players. Each team also has up to three coaches (offensive, defensive, and physical training coaches). Throughout season, each team plays two games (home and visitor) against each of other teams. Given those circumstances, does following-
a. identify connectivity of each relationship?
b. Identify the type of dependency that exists between CITY and TEAM.
c. Identify the cardinality between teams and players and between teams and city.
d. Identify dependency between coach and team and between team and player.
Plan an ER diagram for this application. Specify key attributes of each entity type and structural constraints on each relationship type. Write down any unspecified requirements, and any assumptions that you need to make the specification complete.