Which of the following diagrams helps the business analyst to document a range of issues that have been uncovered about a business situation?
A company holds information about 1000 customers. It receives, on average, 50 orders per day. Each order must be placed by only one customer. Customers must have placed at least one order but may place several. An analyst has shown an association between the classes Customer and Order. What multiplicities should she show at the Order end of this association?
An analyst has discovered that a company wishes to hold information about departments and employees. A department may have many employees in it, but each employee can, at any one time, only work in one department. There is no requirement to store historical information. However, there are currently eight departments and over one hundred employees. How would this relationship be shown on an Entity Relationship diagram?
