Question

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.

Answer 1

The problem presented in the case study is about creating a database for the South African national mountain bike championship based on the provided business rules. The business rules specify the entities, attributes, and relationships that need to be modeled. By following the rules, we can create a database that accurately represents the championship and its participants.

Step-by-step explanation:

The problem presented in the case study relates to creating a database for the South African national mountain bike championship. Based on the provided business rules, we can identify the entities, attributes, and relationships that need to be modeled.

1. The first business rule states that each city in South Africa may have one and only one team as its representative. However, it is not mandatory for a city to enter a team, so some cities may not have teams.
2. The second business rule states that each team must represent one and only one city.
3. The third business rule states that each team must have one or many riders.
4. The fourth business rule states that each rider must be part of one and only one team.
5. The fifth business rule states that each team may have one or many coaches. It is not required for a team to have a coach.
6. The sixth business rule states that each coach must be linked to one and only one team.

To model this database, we can create entities such as 'City', 'Team', 'Rider', and 'Coach'. These entities will have attributes such as 'city name', 'team name', 'rider name', and 'coach name'. The relationships between these entities can then be defined based on the business rules.

For example, the relationship between 'City' and 'Team' can be a one-to-one relationship, where each city has one team and each team represents one city. The relationship between 'Team' and 'Rider' can be a one-to-many relationship, where each team has one or many riders. Similarly, the relationship between 'Team' and 'Coach' can be a one-to-many relationship, where each team has one or many coaches.

By modeling the entities, attributes, and relationships based on the provided business rules, we can create a database that accurately represents the South African national mountain bike championship and its participants.