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Case Study: The South African national mountain bike championship is a yearly event and
information about various entities, attributes and relationships need to be modelled for the
database that must be created. The organisers of the event have provided you with the following
business rules: 1) Each city in South Africa may have one and only one team as its representative.
It is not compulsory (mandatory) for a city to enter a team which mean that some cities will not
have teams. 2) Each team must (is required to) represent one and only city. 3) Each team must (is
required to) have one or many riders. 4) Each rider must (is required to) be part of one and only
one team. 5) Each team may have one or many coaches which means a team do not need to
have a coach to enter into the tournament. 6) Each coach must (is required to) be linked to one
and only one team.

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  • 1. Case Study: The South African national mountain bike championship is a yearly event and information about various entities, attributes and relationships need to be modelled for the database that must be created. The organisers of the event have provided you with the following business rules: 1) Each city in South Africa may have one and only one team as its representative. It is not compulsory (mandatory) for a city to enter a team which mean that some cities will not have teams. 2) Each team must (is required to) represent one and only city. 3) Each team must (is required to) have one or many riders. 4) Each rider must (is required to) be part of one and only one team. 5) Each team may have one or many coaches which means a team do not need to have a coach to enter into the tournament. 6) Each coach must (is required to) be linked to one and only one team.