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3 years ago

Can someone help me on drawing ER and Use case diagram on following scenarios. ASAP!!! Please :(

Computers and Technology

1 answer:

GalinKa [24]3 years ago

4 0

Answer:

The ER Diagram is in the attachment. And I an including the membership details in the use case:

Applicants: Coach will ask for iD.

if the application is not registered, coach sends to registration department.

Applicants registers-->> shows registration ID-->> goes to account section

Submits the fee->> goes to coach again-->>coach asks for fee sjip-->> On yes-->> entrance allowed else-->> sent to account section

Applicants apply for course-->>if prerequisite is met, registration allowed

else-->>registration denied

Note: If registration is allowed the applicant is sent to account section and

Also note:

First check, then registration, then course prerequisite check,then account->entrance

If registered->direct entry.

Explanation:

The answer is self explanatory.

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AddAll - Adds all the doubles in the string with each other. Note every double is separated by a semi-colon. AddAll("1.245;2.9")

ludmilkaskok [199]

Answer: provided below

Explanation:

The code is provided below/

// the method to add all double value in the string

double AddAll(const char *str)

{

double total = 0;

vector<string> vec;

stringstream strStream(str);

while (strStream.good())

{

string substr;

getline(strStream, substr, ';');

vec.push_back(substr);

}

for (size_t i = 0; i < vec.size(); i++)

{

total = total + stod(vec[i]);

}

return total;

}

Program code with addition of the above for testing is provided thus

#include <iostream>

#include <sstream>

#include <vector>

using namespace std;

//addin all double value in syring

double AddAll(const char *str)

{

double total = 0;

vector<string> vec;

stringstream strStream(str);

while (strStream.good())

{

string substr;

getline(strStream, substr, ';');

vec.push_back(substr);

}

for (size_t i = 0; i < vec.size(); i++)

{

total = total + stod(vec[i]);

}

return total;

}

int main()

{

//method calling and display result

cout<<AddAll("1.245;2.9");

}

This gives output as:

4.145

3 0

3 years ago

In terms of CPU scheduling metrics, __________ is the time at which the job completes minus the time at which the job arrived in

Evgesh-ka [11]

Answer:

b. turnaround time

Explanation:

A scheduling computer system refers to the ability of the computer that typically allows one process to use the central processing unit (CPU) while another process is waiting for input-output (I/O), thus making a complete usage of any lost central processing unit (CPU) cycles in order to prevent redundancy.

In terms of CPU scheduling metrics, turnaround time is the time at which the job completes minus the time at which the job arrived in the system. It is one of the scheduling metrics to select for optimum performance.

7 0

2 years ago

In some cases, certain Hyper-V guest operating system features do not function properly using the operating system's own device

klasskru [66]

Answer:

The correct answer to the following question will be "Guest Integration Service".

Explanation:

Integration resources are often a packaged package of applications that enhances connectivity between the hosting network as well as the virtual device when enabled throughout the VM.

This also seamlessly integrates time between both the visitors and server OS and could provide a pulse and folder compatibility.
It offers a Hyper-V network interface for unidirectional copying of data from and to another virtual machine.

This package of tools will help to fix compatibility problems. So, that is the right answer.

8 0

3 years ago

What are two options available for highlighting changes in the Highlight Changes dialog box?

lukranit [14]

Answer: D

Within a specific time period or by a specific user

Explanation:

4 0

2 years ago

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When Lisa purchased her house the mortgage lender required homeowners insurance to cover 100% of the loan amount. After many yea

Black_prince [1.1K]

I think that the insurance coverage amount should be based on the appraisal value of the house. Appraisal value is an evaluation of the value of property based on a given point in time. This evaluation is done by an appraiser who is chosen by the lender.

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3 years ago

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