Computers and Technology, 30.03.2020 20:14, ernestscott406

The Hudson Engineering Group (HEG) has contacted you to create a conceptual model whose application will meet the expected database requirements for its training program. The HEG administrator gives you the following description of the training group's operating environment:

The HEG has 12 instructors and can handle up to 30 trainees per class. HEG offers five "advanced technology" courses, each of which may generate several classes. If a class has fewer than 10 trainees in it, it will be canceled. It is, therefore, possible for a course not to generate any classes. Each class is taught by one instructor. Each instructor may teach up to two classes or may be assigned to do research. Each trainee may take up to two classes per year.

Given this information, do the following:

1. Draw the E-R diagram for HEG.
2. Describe the relationship between instructor and course in terms of connectivity, cardinality, and existence dependence.
3. Explain the difference between single-valued attributes and simple attributes. Give an example of each.

Answers: 3

Show answers

Other questions on the subject: Computers and Technology

Computers and Technology, 21.06.2019 21:30, moomoo2233

What’s the process of observing someone actually working in a career that interests you?

Answers: 1

continue

Computers and Technology, 22.06.2019 11:00, tristina20

The isometric projection camera technique provides an illusion of perspective by using things like parallax scrolling to create the illusion of 3d in a 2d game

Answers: 3

continue

Computers and Technology, 22.06.2019 19:40, rakanmadi87

Solve the following javafx application: write a javafx application that analyzes a word. the user would type the word in a text field, and the application provides three buttons for the following: - one button, when clicked, displays the length of the word.- another button, when clicked, displays the number of vowels in the word.- another button, when clicked, displays the number of uppercase letters in the word(use the gridpane or hbox and vbox to organize the gui controls).

Answers: 1

continue

Computers and Technology, 24.06.2019 05:30, kaylaamberd

Why is hard disk space important to an audio engineer? why are usb ports and firewire ports useful for an audio engineer? explain in 2-3 sentences. (3.0 points) here's a list of different audio software: ableton live apple inc.'s garageband apple inc.'s logic studio digidesign's pro tools propellerhead sofware's reason sony creative software's acid pro steinberg cubase steinberg nuendo choose one of the software programs listed above, and then go to that software program's web site. read about what the software program is used for, and then write 4-5 sentences about what you learned. (10.0 points) which type of software license is the most limiting? why? explain in 2-3 sentences. (3.0 points) when sending a midi channel voice message, how can you control the volume of the sound? explain in 2-3 sentences. (4.0 points)

Answers: 1

continue

Do you know the correct answer?

The Hudson Engineering Group (HEG) has contacted you to create a conceptual model whose application...