I need help In these ERD problems in Data Base Design, you can do them by hand writing or using computer.

PR OB LE M S g 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. employees, known as "rovers," are not assigned to any department. 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 it. . .A project must have at least one employee assigned to it. . One of the employees manges each department, and each department is managed by only one employex . One of the employees runs each division, and each division is run by only one employee. 2. Create a complete ERD in Crow's Foot notation that can be implemented in the relational model using t following description of operations. Hot Water (HW) is a small start-up company that sells spas. HW does n carry any stock. A few spas are se but any products sold must be ordered at the time of the sale. t up in a simple warehouse so customers can see some of the models availabl 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 model is produced as part ol a brand. For example, Iuana Bay Spas is a manufacturert and the BBl-10, a 102-jet spa with three 6-hp motors. Every brand has one or more models. produces Big Blue iguana spas, a premium-level brand, and Lazy Lizard spas, an entry-level t Big Blue lguana brand ollers several models, including the BB-6, an 81-jet spa with two 6-hp mot Every manufacturer is identified by a manufacturer code. The company name, address, area code, ph ber, and account number are kept in the system for every manufacturer num . For each brand, the brand name and brand level (premium, mid-level, or entry-levell are kept in the sys For each model, the model number, number of jets, number of motors, number of horsepower per m sugsested retail price. HW retail price, dry weight, water capacity. and seating capacity must be the system backetthallascorion Fach city in the c