6. Define IT and explain why IT is important to a business.

10 Draw the Gane and Sarson symbols used for processes, data flows, data stores and entities.

11. Explain the purpose of data flow diagram.

12 Consider the following scenario:

The level of credit you are allowed depends on whether you are a trade customer or private customer. If you are a trade customer then the specific level of credit allowed is determined by your loyalty as follows: if you have been a customer for 5 years or more then you are allowed credit up to 10,000 otherwise your credit limit is 5,000.

For private customers, you are eligible for credit if you are earning over 25,000 per year. If you are eligible and your existing unsecured debt is less than 10,000 then your credit limit is 5,000 otherwise it is 1,000.

You are required to construct:

1. Structured English
2. Decision Table

Decision Tree