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(a) Briefly describe three tools
for requirement specification. |
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Three
tools for requirements specification: |
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Decision Trees: are
used when complex branching occurs in a structured decision process. |
[1] |
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Decision Tables: are
tables or rows and columns separated into four quadrants. The upper-left quadrant contains
the condition, the upper-right contains the condition alternatives. The lower half of the
table contains the actions to be taken and the rules for executing the actions. |
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Structured English: is
used to describe operations that simply involve straightforward sequences of tasks and the
iteration of smaller operations. |
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(b) Future Fashions is a retailing
company dealing in ladies' and children's wear. |
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Currently, Future Fashions places
an order with the wholesaler every month who will then deliver the items within a week.
Each month the demand is projected to be higher than the previous month by 5% except
during festive months. |
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The manager in charge of the
merchandize calculates the projected sales for each month taking into consideration either
a 5% growth in sales or a 10% to 20% growth depending on what time of the year it is. He
then places the order with the wholesaler for the goods. |
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If the goods have been on the
shelf for more than two months they are considered 'unsolds'. They are then offered for
reduction sales at these special outlets. During festive months, however, the reduction
sales are then conducted at all outlets of the store. |
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During the months when 'unsold'
are recorded for any of the items, the orders for these items are adjusted by reducing the
quantity ordered from the wholesaler. |
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1. Describe the above conditions and actions
in a simple decision table. |
[13] |
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[13
Marks] |
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2. Redo the above table after eliminating any
redundancies you might notice. |
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[4
Marks] |
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