computer science coursework presentation

7/29/2019 Computer Science Coursework Presentation

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Computer Science Coursework Abhi Agarwal

Computer Science Coursework 63

The subjects will also be auto-generated by the program and not inserted

by the user.

This form adds the subject, the description, the difficulty and the time of

the task taken entered by the user o n this form as a new record in the

database. These details are then saved into an object ofHomework_database and wrote into the random access file and the

linked list.

S2 - Generating the subjects

Add the description of tasks for every

t e of homeworkAdd the tasks and different homework

Set the priority of the tasks

Add the time required for each homework and task


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It generates the list of subjects by

reading the random access file of the

current logged in user, and searches

for his subjects field.


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S3 - Delete the tasks and the different homework (in terms of subjects and

in this case also ID)

This form deletes the specified homework by the user from the

Homework database; the user is able to select the ID, subject, description

or the time taken as a preference to what he/she wants to delete using.The program then flags the delete field of this record as 1 and saves

into an object of Homework_database and writes into the random access

file and the linked list.

Delete the task and the different homework (in terms of

subjects and ID)


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S4 - Edit the tasks and the different homework: edit the description of

tasks for every different homework, edit the time required for each

homework, edit the priority of the tasks (in terms of importance)

This form edits the specified homework by the user from the Homework

database; the user is able to enter the subject, description, difficulty, thetime taken, and these are non-optional. The program then overrides the

field of this record with this data saves into an object of

Homework_database and writes into the random access file and the

linked list.

Edit the description of the homework that

was entered previously by the user

Edit or leave the same subject if required

by the user

Edit the priority of the tasks (in terms of

importance (easy, medium, hard))

Edit the time required for each

homework.


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S5 - Allow free time and take consideration that Mr. Kothari might get

distracted at some points. Also gives the optimum sleep time required by

the user (taking into account they finish their work). It outputs a

simulated timetable of the day, and the estimated time of completion.

This form allows a timetable to be generated: that gives the user freetime, the optimum sleep after their homework has been finished, and

simulates a timetable of the day. It also outputs the estimated time of

completion. The algorithm behind this searches the homework to

calculate the total time required and asks the user to suggest a time to

start the process. The demonstration below is one that starts the

homework at 8:00am, and in this case the user finishes his homework in 2

hours by 10:00.

Allows free time and takes

consideration that Mr. Kothari

might get distracted at some

points, and give a 15 minute break

between every 2-4 activities.

Estimated timetable of completion: In thiscase it would be 10:00, as it gives a 15-

minute cool-down period.

After the user is finished his work, it gives

them the optimum sleep and free time

that is required by the user.

Sort and prioritize the

homework into numbers.


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S6 - Create the same basic environment Mr. Kothari uses, and lists the

current homework to the user in a table format.

In order to allow him to have a similar environment as before I have

created a timetable view, which is the closest thing to a whiteboard that

could have been used. This will allow him to see all his homework in aclear timetable view, and he will be able to keep this tab open.

Displays all the homework

categorized in the different

descriptions

Displays all the homework categorized in

the different subjects

Displays all the homework categorized in

the different difficulties

Displays all the homework

categorized in the different

times


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S7 - Print the timetable and homework as displayed by the table, or

within the database itself.

As stated by the client, this program needs to be able to print the

timetable that has been generated by the database, and this form will be

able to print it. This program will also print the Homework database thatcan be seen in the Homework database table as shown above.

Generated Timetable

The user will also be able to

choose the page setup, the page

size, Ect.

The user will be able to choose the printer

itwantstoprintusing,inthiscaseaHPprinter.

TheuserwillprimarilyclickthePrintbutton and it will popup the menu. This is

a form of the timetable that has been

generated.

This is the button for it to send

it to the printer.


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S8 - Homework Database

TheuserwillprimarilyclickthePrint

button and it will popup the menu.

This form will be the same as the previous

print function.

The Homework Database table has been

generated from the Linked List and thedatabase.


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S9 - The user will be able to add users to the database, and control who

has access to the program, and the subjects will be auto generated and

the user doesnt have to insert them himself.

This program will be able to add multiple users to the program, who will

be able to access and add their own homework. The databases ofdifferent users will be kept different on a day-to-day basis so everyone is

able to access the right homework. The user is added to the database

initially, and this is static throughout the program. When homework is

added to the database, these selections of subjects are shown for the

user to add.

This is the 4-digit pin code that the

program uses for authentication. The

user will type this twice for

confirmation and the program will

check if it's the same.

This is the username that is required for

the user to authenticate into the program.

TheuserwillprimarilyclicktheAdd

userbuttonanditwillinserttheuserinto the database.

The 7groups of subjects you

have in the IB, all the subjects

possible are already put into a

combo box, to save time.


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S10 - View users in the database.

All the users within the program will also be able to view all the users,

but they wont be able to see the Password or the Passcode of the

different users.

The password in this form is

hiddensothatotheruserscant

login and authenticate into the

program.

This is the username of the different users

in the database.

This button will different users to view all

the different users, it will allow them to go

back and forth on different records.

The users will all be able to

view all the subjects of each

user.


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S11 - Easy and simple to use for Mr. Kothari as it shouldnt take more

than 5 minutes a day to put information into this program database.

The menu is adaptable and easy to add/edit/delete/view/search and simulate.

The menu opens next to it, and is easy to close. The File/Edit/Print is also easy to

use. There are easy to use keyboard commands such as control A, in order toopen the administration menu. This will be quick and easy, and Mr. Kothari will

be able to adapt to them easily. The menus also open side by side so they will be

able to quickly add and close them.

These menus have keyboard commands in order

to increase efficiency for the user.

The forms from default open in a side-by-side

layout in order for the user to quickly access

them and be able to intuitively predict thelocation of the forms.


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S12 - The backups will be taken by the program itself, this will take

backups daily and override all the files.

The program when logged out of the program will backup the databases

itself and save them into a backup folder.

Below this one are the files for the

database itself, these are saved

within the directory and it is made

for both Mac and Windows

directories.

This is the folder of the backups that are

saved when you have logged out from the

program.

This is the code that allows the program

to backup when the logout sequence is

started; it copies the directory into a

separate directory.


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S13 - The predefined range of the homework will be 0-3 hours, so Mr.

Kothari wont be able to add homework, which is more than 3 hours long

per day.

When youre adding the homework, the pre -defined till will be 15

minutes to 180 minutes, and it will allow the program to have apredefined range check. It saves an error to be created within the

program.

The task time in minutes goes from 15

minutes to 180 minutes, therefore it will

go from 0-3 hours.


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S14 - It will only handle a single user at a time, only one user can use the

pr ogram at one ti me fr om one com pute r.

This single-input user login system will only be able authenticate only one

user at one time.

Only one person will be able to login to

this form at one time.


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S15 - Program settings.

This is where the part of the program where the user will be able to pick

what time he wants to start generating the timetable at that point. It

then saves it into a database and is read every time, and it is saved

specifically for every different user.

The time goes from 8:00 to 20:00, this is

the time where the person will start

working.


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S16 - First time user created.

When a new user uses the program for the first time, the program

recognizes this, and pop-ups a different form for that user to put their

details in.

Allows the first user to enter his details

about the subjects and the username and

password.

Allows the user to choose when to start

studying, and set the time to simulate the

timetable.


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S17 - Mac or Windows

The program will ask the user to decide whether the computer he/she is

using is Windows or Macintosh.

Summary

These satisfy the objectives which were proposed in A2:

Mr. Kothari is able to add, edit, and delete tasks for every homework and

the description, time and properties. This then is generated and sorted to

allow for the maximum free time, and the optimum sleep th at he can get,

and gives the same basic environment as before. This then is outputted

to give the estimated time of completion and simulates a timetable of the

day. Then Mr. Kothari is able to print this or use it in the way he requires

to do so, also as a Table.

It is easy to use and the clean menu allows for quick adding of

information, and the command keys (when used too) can help the process

be quicker. Backups are self-taken and the subjects are also generated by

the user to decrease them typing it. Th ere are error checking embedded

within the program, and this allows the errors to be caught before the

simulation is ran. The program is also secure and uses a ten-digit pinsystem, which would mean that there would be 10! (10 factorial) ways to

crack the system. There are 3 628 800 ways to break the system, and this

would take a long time to crack it. This program is also written in Java so

it can be used in both Windows or Mac as required by the user in the

future.

However, the program also only allows homework from 1-3 hours, as

shown by the user having to select the time frame, and this program will

only work on Windows or Mac as there is no Linux support and Mr.

Kothari hasnt expressed the wanting to use Linux. There is also no

Theuserwilleitherentermorw

either for Mac or Windows, which will

then change the URL of the file

accordingly.


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support for applications on the computer, and also messaging. It is

single-user environment, so only one user uses at it a single time.

Errors (EM Error Message)

EM1 - Login Screen (ERROR E4)

This is the error generated when the username or password is incorrect

in the database, or in this case it is not found!:

EM2 - Logout Message (ERROR E16)

This is the option that is given to the user when the user wants to log out,

this is a verification check:

EM3 - Opening multiple forms at once (ERROR E19)

This is an error generated when multiple forms are trying to be opened,

so you are only able to open one form, and when you close it you can

open another one:


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EM4 - Add Members - Validation length check, and verification check

(ERROR E12)

When two passcodes are different then it will generate an error message

to ask the user to re-enter the passcodes again.

This is the form of what it would look like when you are adding the code:

I have now entered data into the passcodes, and I have entered the 4Digit Codes differently:

It will now generate this error message to show that the two passcodes

dont match, the user has to re -enter the data.


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EM5 - Add Tasks Limiting the amounts of tasks (ERROR E13)

There is a limit on the amount of tasks that you can add to the database,

it is 11 in this program, and there will be an error generated when one

tries to add more than 11 tasks.

This is what the error would look like:

EM6 - Add Tasks/Edit Tasks

500 word limit on the description (ERROR E5,

E6 )

There is a limit on the size of the description that you can add to the

database, it is 500 words in this program, and this particular error will be

generated if the description is larger than 500 words.

This is what the error would look like:


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EM7 - Member file not found error (ERROR E2)

There will be no error generated but it will create a new member in the

database, this is the form that will pop up in order to do this:

EM8 - Changing Operating system (ERROR E14)

When the user tries to change the operating system there is a check that

the program asks to confirm if the choice they have made is correct.

EM9 Checking space left (ERROR E3)

When the program loads and if there is not sufficient amount of memorythis message will popup telling them to fix the space.


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EM10, EM11 Add new member (ERROR E20, E15)

EM10 - When the adds a new member, the username h as to be lower

than or equal to 10 letters, or this error wil l be displayed to the user:

EM11 - When the adds a new member, the password has to be a integer

or this error will be displayed:

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