Consider the following automotive enterprises, involving cars, car manufacturers, and car dealerships. Car Manufacturers are companies that build cars and they have attributes such as name, headquarters address, country of incorporation, etc. Cars have attributes such as make (e.g., Ford, Volkswagen, Chrysler), model number, kind of car (e.g., sedan, SUV, wagon), etc. A dealership sells cars. It
has a name, address, and telephone numbers (typically more than one.) A manufacturer may make several di erent kinds and models of cars (as, for example, the manufacturer Mercedes/Chrysler does). A car is made by a single manufacturer. A dealer can sell cars from several di erent manufacturers but does not have to sell all the cars from a single manufacturer. For example, Nardy Honda-Pontiac in Smithtown sells Pontiacs from manufacturer GM and Hondas from manufacturer Honda, but it doesn't sell Chevrolets that are also made by GM. A manufacturer can make a car (such as a racing car) that is not sold through dealerships.
Represent the above as an E-R diagram; include all relevant constraints.
Assumptions: the name of dealership is unique; the name of manufacturer is unique.
E R diagram:
You might also like to view...
Would this compile? If not, what change do you need to make so that it will compile?
Match each item with a statement below.
A. A TCP/IP network model layer that serves to move packets across one or more networks. B. An OSI network model layer responsible for data translation and encryption functions. C. An OSI network model layer responsible for networking support. D. An OSI network model layer responsible for establishing, maintaining, and terminating communications sessions between two systems. E. An OSI network model layer responsible for placing the transmission signal carrying the message onto the communications media. F. A TCP/IP network model layer that includes the Data Link layer and the Physical layer. G. An OSI network model layer responsible for communications between networks. H. An OSI network model layer responsible for providing users with a number of services they can use to exchange information. I. An OSI network model layer responsible for providing reliable end-to-end transfer of data between user applications.
Individuals who write inflammatory messages on wikis just to provoke emotional responses from readers are known as
a. Internet vandals. b. wiki wise guys. c. wiki haters. d. Internet trolls.
A variable, constant, or expression that is needed to produce the output for an action.
What will be an ideal response?