A second project in this section is a timesheet example, which is used to collect information about work done by employees. Certainly it is not an Excel spreadsheet, but what exactly is this form? And how is it used, you will see indented boxes underneath some headings. This is the input sheet to collect the required information. It is probably computerized and provides some help when the data is entered. For example, the project name has a downward arrow at the end of the box.

Probably, if the downward arrow was clicked, it would reveal a list of current projects. In this exercise, you are asked to identify all the entities and then create an entity relationship diagram or er D. Do you remember the components Any rd it includes entities, fields, relationships, crow's feet, cardinality er DS were first developed by Phillip Chen. There are many types of er DS. This popular one was created by ci a CI and became popular with Oracle databases. Record your answers to the questions on a separate piece of paper. answers will be provided in the next section of the course.