April 2000
SD206 : SYSTEMS DESIGN

QUESTION 3

Total Marks: 15 Marks

• Question 1
• Question 2
• Question 4
• Question 5
• Cover Page

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SUGGESTED SOLUTIONS
for Question 3

(a)Describe,using examples,two coding methods.[6 marks ]

(b)List three general guidelines for coding.[3 marks ]

(c)Calculate the following:
(i)The Check Digit of 32874 using Modulus 10 with a 2-1-2 weighting [2marks ]
(ii)The Check Digit of 32874 using Modulus 10 with a 3-1-3 weighting. [2 marks ]
(iii)The Check Digit of 32874 using the Modulus 11 “geometric”
technique[2marks ]