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Evaluate Data Collection Methods:

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Evaluate Data Collection Methods: Reading Invoice: This way of collecting data would be use full because it will contain all the information about product. The only bad thing with using an invoice to collect the data is that it will take a long to go thought all the product s because each product has a separate invoice. Reading Log Books: This way of collecting data would be useful in some causes but not in all. The Log Book only contains the product code, so therefore it will be only be useful when we need a product code. Interviewing Staff members: This way of collecting data would be accurate and useful but the only bad thing with this is that you can't interview the whole staff and it is time consuming. Information Needed Reading Invoices Reading Log Book Interviewing Staff Members Chosen method to set up system Chosen method when using the system Product Description The invoice will contain all the information about the item and is appropriate, but it will be time consuming because you will have to go thought all the products invoices Only the product code is stored in logbook and will therefore not be needed. ...read more.


But still, this method is practical and simple and can be used for our system. This method doesn't require the user to be trained a lot and is efficient for small quantities of data. It could be used in my system to enter the product name, and it details. This method will be used mainly for all entering all my data. Optical Character Recognition: This equipment scans the page containing text and studies each character and compares them with what has been stored. Although some of these can read the text quickly there is an extremely high rate of errors being caused? This will not be used because the equipment is expensive and isn't reliable. Optical Mark Reader: This scans marks and converts them into characters. My system consists of letters and numbers and not marks therefore there aren't going to be any marks to convert. This method will not be useful for my system. To minimise any mistakes or errors in the information put onto the system to calculate profit or loss, there are many methods in which the computer can use to do this. ...read more.


Sometime the monthly detail of the product might be printed out because the manager might want to check if the data is correct. When the output will be printed it will be sorted in two columns yearly reports and monthly reports. Backup & Security Methods: There would be possible threats to my system things like hackers, fire, accidents and breakdowns. I would have network password where the workers know the password, each person has a different password and as they log on it tell the system that person has logged at that time. This would reduce the chance of someone hacking my system, plus the password will change daily so it will make it even harder for someone to hack the system. I would use Nortel Virus software to protect the system from any viruses. I would also make back up after everyday on a CD and will be put inside a fire proof cabinet, to secure the data from fire and accidents and breakdowns. The backup should not take more than 20 minutes at the end of the day. It would be stored on a CD R not CD R/W because the data on that can be erased easily by mistake. While CD R can't be erased by mistake and the CD's are cheap. ...read more.

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