Exhibitors must register with the committee to ensure that no double bookings occur. 5.1.1 The electronic form below was designed to be used for online registration. Enter your main product for display Enter your contact number ☐ Male ☐ Female What table do you require? ☐ Clear all fields to re-enter data Enter your e-mail address Submit 5.1.2 The form below was designed to capture the data of a stand object named objStand. Stall code (e.g. A01) Exhibitor name Plug point required Number of tables Number of assistants Using the above form, draw a UML (unified modelling language) diagram for the objStand object class. The diagram must contain the following: - All the attributes for this object according to the specifications of a UML diagram - An accessor method for the 'Stall code' attribute - A mutator method for the 'Plug point required' attribute

NSC Information Technology GUI components: Exhibitors must register with th

Exhibitors must register with the committee to ensure that no double bookings occur - NSC Information Technology - Question 5 - 2016 - Paper 2

Question 5

Exhibitors must register with the committee to ensure that no double bookings occur. 5.1.1 The electronic form below was designed to be used for online registration... show full transcript

Worked Solution & Example Answer:Exhibitors must register with the committee to ensure that no double bookings occur - NSC Information Technology - Question 5 - 2016 - Paper 2

Step 1

Critically comment on the layout of the components of the form, by indicating TWO ways in which the layout can be improved.

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Answer

To improve the layout of the electronic registration form, consider the following:

Group Related Information: Components that are related to personal information and exhibition details should be placed together. This allows users to navigate the form more efficiently without confusion.
Optimize Button Placement: The submit button should be located at the bottom right side of the form, ensuring it is the last thing users encounter after filling out the form. Additionally, arranging the text boxes and buttons in a top-to-bottom and left-to-right manner would enhance readability.

Step 2

Critically evaluate the components on the form that are used to obtain data from the user. Identify TWO poorly chosen components and suggest a more suitable component in EACH case. Motivate EACH suggestion.

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Answer

Checkboxes for Gender: Using checkboxes for gender selection limits the user to one selection option, which can lead to confusion. Suggestion: Utilize radio buttons instead to allow users to select only one option easily.
Input for Number of Tables: Inputting the number of tables can lead to incorrect entries. Suggestion: A combo box or a spinner could be used to restrict users to valid values (e.g., 1-10) while making it clear that these are the only acceptable options.

Step 3

Draw a UML (unified modelling language) diagram for the objStand object class.

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Answer

Class objStand {
  - StallCode: string 
  - ExhibitorName: string 
  - PlugPoint: boolean 
  - NumTables: integer 
  - NumAssistants: integer 

  + getStallCode(): string 
  + setPlugPoint(pp: boolean)
}

Step 4

Write pseudocode to generate the random number and calculate the answer for the sequence generated. DO NOT DISPLAY the sequence of terms.

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Answer

randNum ← generate random number in the range 1 to 10  
denominator ← randNum  
Answer ← 0  
For index from 1 to randNum do  
    Fraction ← index / denominator  
    If index is odd then  
        Answer ← Answer + Fraction  
    Else  
        Answer ← Answer - Fraction  
End for

Step 5

Copy and complete the trace table below to determine what the output of this program segment will be.

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Answer

A   | Is A>3? | B     | Astring | Is B>A? | Display  
1   | No      |       |         |         |          
2   | No      |       |         |         |          
3   | No      |       |         |         |          
4   | Yes     | 1     | *       | Yes     | *        
5   | Yes     | 2     | **      | Yes     | **       
6   | Yes     | 3     | ***     | Yes     | ***

Exhibitors must register with the committee to ensure that no double bookings occur - NSC Information Technology - Question 5 - 2016 - Paper 2

Worked Solution & Example Answer:Exhibitors must register with the committee to ensure that no double bookings occur - NSC Information Technology - Question 5 - 2016 - Paper 2

Critically comment on the layout of the components of the form, by indicating TWO ways in which the layout can be improved.

Critically evaluate the components on the form that are used to obtain data from the user. Identify TWO poorly chosen components and suggest a more suitable component in EACH case. Motivate EACH suggestion.

Draw a UML (unified modelling language) diagram for the objStand object class.

Write pseudocode to generate the random number and calculate the answer for the sequence generated. DO NOT DISPLAY the sequence of terms.

Copy and complete the trace table below to determine what the output of this program segment will be.

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