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pantera1 [17]
3 years ago
5

explain the key reasons why entity relationship modeling is important, and determine at least (1) way in which it impacts the ov

erall development of the database.
Computers and Technology
1 answer:
Dimas [21]3 years ago
7 0

1st step in the data base design is data modeling. Data modeling involves conceptual data modeling and physical data modeling. E-R modeling is widely using to tool for conceptual data modeling.

A data model describes the structure of a database. Structure of data means describing the entities involved in the data base and their attributes, relationships among the entities, keys on entities , constraints etc… That is, the E-R model gives the clear picture about the database.

E-R modeling is a communication tool. It helps the data base designer to develop a good data base that meets the end users and application programmers. Especially, E-R modeling gives a pictorial representation of the database. Thus, the database designer can understand the data base description easily.

Therefore, unless the data base is modeled well, database cannot be developed well.

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Given two input integers for an arrowhead and arrow body, print a right-facing arrow.
Zanzabum

Answer:

I don't know the language this is but here is something that will work for all lang

int num0 = 0;

int num1 = 0;

basically just print the ints in the right dimension

Explanation:

Sorry if I am wrong

I don't know much about this someone else's answer might be better than mine

3 0
3 years ago
What best describes the purpose of occupational safety and health Administration
IRISSAK [1]

Under the Occupational Safety and Health Act of 1970, employers are responsible for providing safe and healthful workplaces for their employees. OSHA's role is to help ensure these conditions for America's working men and women by setting and enforcing standards, and providing training, education and assistance.

5 0
3 years ago
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Write the prototype for a function named showSeatingChart that will accept the following two-dimensional array as an argument. c
barxatty [35]

Answer:

See explaination

Explanation:

void showSeatingChart(string seatingChart[20][40], const int ROWS, const int COLS){

for(int i = 0;i<ROWS;i++){

for(int j = 0;j<COLS;j++){

cout<<seatingChart[i][j]<<" ";

}

cout<<endl;

}

}

4 0
3 years ago
Which of the following is true of a traditional systems development environment?​ a. ​ Systems are developed and delivered in an
pshichka [43]

Answer:

c. ​ Many applications require substantial desktop computing power and resources.

Explanation:

From the options given, the correct answer is C.

Traditional system development is the development of computer software for a typical computer system.

The other options is true for web based system development environment.

Option A mention web based framework as traditional development environment and this is not correct.

Option B mention scalability and running on multiple hardware. This is not true for traditional development environment as it is not scalable and it doesn't run on multiple hardware concurrently. So B is not correct.

Option C is correct as Many applications require substantial desktop computing power and resources.

Option D is not correct as traditional system development environment is not the platform for internet based development. Internet-based development treats the traditional systems development environment as the platform, rather than just a communication channel.

6 0
3 years ago
I need help please!!?
tensa zangetsu [6.8K]

Answer: C. Shaking hands after a game/contest

Have a nice day!

5 0
3 years ago
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