Great Parts Services (GPS), is a company that provides car parts.

Question

A customer makes a call that goes to the registration team to place an order for a specific car part. The customer details are then checked and logged. The order is then processed for validation, if the car part is available, the order is then validated. If the car part is not available, the order is rendered invalid until the part has been received.
a) Draw a high-level data flow diagram to represent the ‘validating order’ process for the current GPS system.

b) List and describe FOUR things that data flow diagrams are used to show.

c) Identify and define FOUR fact finding techniques used in systems development.

d) List and define THREE different types of feasibility study.

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