Question number 2

1. Use the following business rules to create a Crow's Foot ERD. Write all appropriate connectivities and cardinalities in the ERD .A department employs many employees, but each employee is employed by only one department " Some employees, known as "rovers" are not assigned to any artment. .A division operates many departments, but each department is operated by only one division. -An employee may be assigned many projects, and a project may have many employees assigned to i .A project must have at least one employee assigned to it . One of the employees manages each department, and each department is man aged by only one employee. One of the employees runs each division, and each division is run by only onc . employee. 2. Create a complete ERD in Crow's Foot notation that can be implemented in the relational model using the following description of operations Hot Water (HW) is a smal Il start-up company that sells spas. HW does not carry any stock A few spas are set up in a simple warehouse so customers can see some of the models available, but any products sold mast be ordered at the time of the sale. HW can get spas from several different manufacturers. Each manufacturer produces one or more different brands of spas. Each and every brand is produced by only one manufacturer Every brand has one or more models Every model is produced as part of a brand. For example, Iguana Bay Spas is a manufacturer that produces Big Blae Iguana spas, a premium-level brand, and Lazy Lizard spas, an entry-level brand. The Big Blue Iguana brand offers several models, including the BBI-6 an 81-jet spa with two 6-hp motors, and the BBI-10, a 102-jet spa with three 6-hp motors. Every manufacturer is identified by a manufacturer code. The company name, address, area code, phone number, and account number are kept in the system for every manufacturer For each brand, the brand name and brand level (peemium, mid-level, or entry- level) are kept in the system " .For each model, the model number, number of jets, number of motors, number of horsepower per motor, suggested retail price, HW retail price, dry weight, water capacity, and seating capacity must be kept in the system . The onesburgh County Basketball Conference OCBC) is an amateur basketball association. Each city in the county has one team as its representative. Each team has a maximum of 12 players and a minimum of 9 players Each team also has up to 3 coaches (offensive, defensive, and physical training coaches). During the season, Chapter4 Entity Relationship(ER) Madeling 1 s 2 games (home and visitor) against each of the other teams. Given s, do the following connectivity of each relationship. type of dependency that exists between CITY and TEAM cardinality between teams and players and between teams and city