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658837
ICT Revision
Descrição
Basic Revision Notes on: RFID Tags Bar Codes Data Protection Act
Mapa Mental por
MTompkins
, atualizado more than 1 year ago
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Criado por
MTompkins
aproximadamente 10 anos atrás
23
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0
Resumo de Recurso
ICT Revision
Data Protection Act
8 Principles: Data should....
Be Fairly and lawfully processed
Be Processed for limited purposes
Be adequate, relevant and not excessive
Be accurate and up to date
Be kept for a limited time
Be Processed in your line of rights
Be securely held
Not to be transferred to other countries outside the E.U. that do not have adequate data protection
Basic Info
Doesn't protect personal data but does protect the rights of the owners of the personal data
If the data hasn't been complied with the 8 principles, the owner of the data has the right to complain and claim compensation
Bar-Codes
Advantages
Cheap to Use for products
Automatically updates the stores database when the product@s barcode is scanned
Disadvantages
The code can break and become faulty, causing the computer to read the code wrong or not at all
The barcodes may become corrupt and have to be entered in manually, wasting time
The barcode doesn't hold a lot of information about the product
The barcode has to be manually scanned to update the database/system
How it Works
12 numbers in the barcode
1st number-Product Type
2nd-6th number-Manufacturer code
7th-11th number- Product Code
12th number- Check Digit
Has a quiet zone to determine the speed of the scan
Each section of 7 bars/gaps represents a number
The scanner reads the code, converts it into a number and retrieves the information linked to that number
RFID Tags
Advantages
Can be read from up to 100ft
Carries more information than a bar code
Transfers data faster than a barcode
Automatically updates the system/database without the need of manually scanning it
Disadvantages
More expensive to use than a barcode
How it Works
3 main parts
Antenna
Transponder
Receiver
The scanner reads the signals emitted from the RFID Tag
Data is transmitted along these signals
Radio Frequency Identification Tags
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