Reference no: EM133489951

Question 1) Draw a sequence diagram for this scenario: The College Street Red Cross Blood Donor Centre operates as follows: On the day of a blood donation, the Donation Unit receives blood donations from donors and sends them to the Testing Unit which tests each blood donation for blood type and potential viral agents. The Testing Unit then sends the blood donation along with test results to the Processing Office (another unit of the Centre) which fills a form for each tested blood unit where the tests are OK and sends the blood units and forms to the Distribution Office. If tests indicate that a blood unit may be contaminated with a viral agent, the Processing Office destroys that unit.

Question 2) Draw a UML REQUIREMENT Class Diagram representing the following elements from the problem domain for a hockey league. A hockey league is made up of at least four hockey teams. Each hockey team is composed of six to twelve players, and one player captains the team. A team has a name and a record. Players have a number and a position. Hockey teams play games against each other. Each game has a score and a location. Teams are sometimes led by a coach. A coach has a level of accreditation and several years of experience and can coach multiple teams. Coaches and players are people, and people have names and addresses. Draw a class diagram for this information and be sure to label all associations with appropriate multiplicities.

Question 3) A book is written by an author, published by a publisher, sold by a bookstore, and read by a reader. Moreover, for a reader to read a book, she must buy it from a bookstore that is selling it. Draw a use case diagram for this scenario, showing relationships between different use cases.