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In this document I will begin to explain why I have included the following features in my Exam Spreadsheet. The context is a system which you can order a window for your house or business.

Extracts from this essay...

Introduction

In this document I will begin to explain why I have included the following features in my Exam Spreadsheet. The context is a system which you can order a window for your house or business. Spinners - I have used spinners in the sheet 'Find area' in cell D5, as it reduces what the user has to input. This reduces the likelihood of input errors. Its large and intuitive style made it easy for the user to alter data easily, meaning users don't get confused about what to input in. Also, as the spinner is linked with cell B5, the most ignorant users will not input letters into this field. Multiplication - I used the multiplication function in the sheet 'Find area' in cell E6. It will produce a more accurate calculation than a human would perform, and will automatically recalculate the area if the dimensions change. This saves time for the user as they don't have to repeatedly recalculate the dimensions. It makes it much easier to analyse different prices when you alter dimensions with spinners, whilst if you have to perform calculations

Middle

Its purpose was to inform the user of what date it was. Therefore, they could realise if it was a public holiday and their order wouldn't process until the following working day. For example, if they ordered a window on a bank holiday, delivery would take 3 days to arrive instead of 2.This has also been outlined in our separate copy of the terms and conditions. If the user does not understand this, they may complain about late arrival. Also, the second use of including this function is to know when your order shall arrive. For example, if the user orders on the 18th and they need their window to arrive the next day, they will know the order 'Express delivery'. VLOOKUP - I used the VLOOKUP function in my sheet 'Order sheet' in cell D10. Its purpose was to collect prices of the individual window styles from the sheet 'Tutorial'. The advantage of this is that you can select styles of window frames, and it will automatically update the price.

Conclusion

The purpose of this was to round the finished price. This was a method of validation as the user can quickly check the price without having to pay too much attention to detail. MAX - On the sheet 'Order Placed' in cell D16, I used the MAX function so that the user can quickly assess what was the maximum price for a product they purchased. For example, if a member sees that they spent over £2000 pounds on a product they can return to previous page and alter it. It ensures that the data is reasonable and sensible. MIN - On the sheet 'Order Placed' in cell D17, I used the MIN function so that the user can quickly assess what was the minimum price for a product they purchased. For example they can see what the minimum price is that they purchased. For example, if the cell D17, if it says the minimum price was £1, they'd realise that they accidentally selected the cheapest delivery method as this was the cheapest option on the whole system. Therefore they can return to the previous page and alter the delivery type. ?? ?? ?? ?? A/S ICT Unit 1

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