Task 1 Investigation in to two types of programs€¦ · Final Version 21/05/2015 Connor Stevenson. Type of programs • The programs I am going to be analysing are both event driven

Task 1 Investigation in to two

types of programs

By Connor Stevenson

Final Version

21/05/2015 Connor Stevenson

Type of programs

• The programs I am going to be analysing are

both event driven programs, this is a program

that’s outcome can change depending on

what the user inputs. There will be many

examples of this shown by the errors that can

occur in these programs and what values you

are able to enter.


Program 1

• Program one is a printing program, this

program is very basic. It asks you to input your

name and a number, after completing these

steps it will tell you that you are ready to

print. Clicking print will bring up a preview,

here you will notice that the number you

entered has been entered into a multiplication

table and will show you the values of the

number you entered multiplied by 1 to 20.


Purpose

• The purpose of this first program is to show

the user multiplication tables. This could be a

useful program for children of a young age for

educational purposes.


Advantages

• This program could be put to good use if the

user is in a rush or of a young age.

• Another advantage of this program is that it

displays a print preview rather than just going

ahead and printing the multiplication table.

• This program is also presented very well and is

easy to use. I could highly recommend this

program to somebody of a young age.


Disadvantages

• This program is very limited and you can only

enter a number between 1 and 20.

• Also when closing this program it does not

have an X in the top right corner. You just have

to manually close it.

• This program can not be minimised either,

which if you could it would instantly make the

program seem a lot more complex.


Constructs and Techniques

• This program mostly just consists of basic

strings and notes, this is because the program

is not very complex and is just intended for

basic quick use. This could be seen as a

problem because it is limited, but it does the

job that it is made for.


Code for program 1

• All the different types of code in this program mean a different thing.

• Blue- Visual Studio

• Black- Code you choose

• Green- Comments

• Aqua- Major Asset


Here is an example of an

event, this tells you that

you must enter a number

between 1 and 20, if you

don’t it will show you an

error message.

Flowchart


Error message

• This is the error message that is displayed on program 1 if you do not enter a number between 1 and 20. If I was to enter a letter or a number over 20 or below 1 then the program would not run and would display this error message.


How to improve.

• This program could be improved by making it

more complex and increasing the value that

you are able to enter because at the moment

it is very limited. Also the font on the print

preview could be a lot clearer as at the

moment it is very small and hard to read.


Review

• After using this program I was left fairly

satisfied because it did what it was supposed

to do. But I thought it was a bit lack-lustre due

to it being so basic, it left me wanting more.

But it performed very well with no faults.


Program 2

• Program 2 is an invoicing program. This program allows you to enter a date for when a customers debt is paid. It also shows you if they are entitled to a discount, if the customer is entitled to a discount it shows you the percentage discount followed by the amount owed followed by the amount after the discount is taken away.


Purpose

• The purpose of this program is to create

invoices for discounts that can be acquired

when paying for products from “Jane’s

Sawmill” early. If you pay early you are

entitled to a discount.


Splash Screen

• This program has a Splash Screen, this

automatically shows that the program is quite

complex upon first glance. Compared to

Program 1, Program 2 is a huge leap in a

forward direction and shows a lot of

complexity. The Splash Screen is used to

display a picture and a program model

number. This makes the program seem

interesting and very legitimate.


Help function

• This program has a help function which the first program did not. This makes it a lot easier for first time users because they don’t then have to trial and error they can read the help and it will give them instructions on how to use the program.


Advantages

• An advantage of using this program is the

discount option. This is very good to have as it

shows you that if the customers pays their

debt in a day or two, then they are entitled to

a discount.

• Another advantage is that even though the

program is quite complex it is also easy to use

and is very well presented.


Disadvantages

• I could not really find any disadvantages other

than the loading time. Even though the

program loads quite fast it could load a lot

faster due to it only being a small program.]

• Also the program can not be minimised or X’d

off which is a slight annoyance.


Constructs and Techniques

• This program consists of a lot of strings of

codes and notes, for somebody to write this

code they would have to have a quite a good

knowledge of coding. This would them help

them to understand the complex calculations

that are going to be used.


Code for program 2• This is the code

that makes program 2 “Jane’s sawmill” run.

• Blue- Visual Studio

• Black- Code you choose

• Green-Comments

• Aqua- Major Asset


Here is an example of an event, it

tells you to pick a date for when

invoice is due. This is done by using a

little drop down calendar then

picking what date the invoice is due.

Error message.

• This is the error message that is displayed for program 2. It tells us that you cannot enter a value below £1 or above £10,000. If we was to try and enter a number above or below the values shown then the program would not run and would display this error message.


How to improve.

• This program could be improved by making

certain values like the value after deductions

clearer because it is very important and needs

to be seen by the admin that would be using

this program. The font need to be clearer or in

a brighter colour because if you can not see

the deductions then you may over charge a

customer. This could lead to a drop in

business.


Review

• I think this program is very good as it suits a

purpose that is often needed in day to day

working life. It is also a very good program

because it has a help page which is good for

first time users and stops errors. All round I

think this is a very good well made program

and can be used in common scenarios.


Documents

Task 1 Investigation in to two types of programs€¦ · Final Version 21/05/2015 Connor Stevenson. Type of programs • The programs I am going to be analysing are both event driven