Design a user interface using a C A S E tool, such as Visible Analyst, a software package such as Microsoft Access, or paper layout forms for the users of the B2B ecommerce systems Melanie Corazón described. What are the key features that address the needs of the people who use B2B ecommerce systems on the Web?

What will be an ideal response?

Because there is not a list of form elements, the design will vary from student to student. Some of the elements that should be included are:

A. There may be a preliminary selection list or radio buttons for the user to choose the type of component, for example, a board or software or both.
B. A drop-down list of current engineering components, boards, and so on.
C. Text boxes to enter the business name, address, contact person, address, telephone number, email address, and so on.
D. A link to a new Web page or entry fields that would allow the customer to customize a product.
E. A link to a new Web page or entry fields to enter specifications for a new product.

Computer Science & Information Technology

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You have contractors come in to perform maintenance a few times a year. You supply laptops for them. A security policy states that when the maintenance is done the contractors should not be able to log in until next time. What is the best choice?

A. Delete the user accounts B. Restrict the user accounts C. Reset the user accounts D. Disable the user accounts

Computer Science & Information Technology

Explain the difference between the output produced by SQL ROLLUP and CUBE queries.

What will be an ideal response?

Computer Science & Information Technology