ICT PDC: Topic 2: What does 3G stand for and when was it introduced?
Third generation, commercially introduced in 2003
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What did 3G lead to?
Led to the possibility of mobile internet access, video calls and video streaming.
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Why must PDC consider 3G transfer rates when developing a mobile app?
Anything too large a band with would not download quickly enough. May result in potential customers losing interest,
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Give an example to the previous question
A live map and a live estimated delivery time, map would have to be simple enough to be able to be compressed to a small enough size to work on 3G
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What does 4G stand for and when was it introduced?
Fourth generation, introduced in 2010
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Why are there different transfer rates for 4G and what will PDC have to do?
Data transfer rate depends on service provider, PDC will have to evaluate the different service providers
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Name two limitations of 4G
4G relies on the user signing up to a tariff, this may rehire additional cost to the user. It's only available in certain geographical locations meaning it isn't available worldwide as of 2016.
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How does NFC work and what does it stand for?
Near field communication works using electromagnetic induction and can be used to read simple NFC tags
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What is used by PDC staff which is NFC enabled
Most mobile phones
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Name 3 advantages of using NFC
It's versatile, could be programmed for many uses. Could develop an app for use in collection depots and workers could use own mobile phones to scan parcels. PDC could save money, specialist hardware would not have to be bought.
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Name 4 disadvantages of using NFC
NFC tags are far more expensive than just printing out a barcode. Might have compatibility issues with other systems. Relies on NFC enabled devices, not everyone may have them meaning PDC have to supply them NFC short range hard to scan large parcels
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What is EDI?
EDI is an automated method allowing for two companies to exchange business information
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What does EDI support?
Many different standards
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What is Edifact?
Professional body which develops EDI rules for the UN. Publishes a new set of messages each year in a list of standards called dictionary.
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What is EAN
EAN is an international standards body. Some countries adapt their own standards for use in their own country. For example, Tradacoms has been developed for use in the UK.
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What is ODETTE
Used in the automotive industry, developed their own subsets of Edifact standards
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What is VDA
Used in the German automotive industry. Rare use in the UK. Only used by automotive supply industry
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What is ANSI
American standard, standard of EDI messages known as Transactional Sets very rarely used in the UK
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What are company standards and how can PDC counter complications?
Company standards are where companies develop their own standards of EDI. Means that if PDC uses EDI they would have to change their format slightly to allow for messages to be sent depending on the customers preferred standard or if they have own.
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Name 6 advantages of EDI
Reduced transcription errors, faster processing speed of orders, reduced postal and staffing cost, less chance of errors, replacement/reduction of mail, fax and email communication.
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Name 2 disadvantages of EDI
Not all companies use the same EDI standard, especially globally. PDC will have to adopt different standards depending on customer, might have to use additional software to encode or decode EDI transmissions to match versions of some customers.
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Other cards in this set
Card 2
Front
What did 3G lead to?
Back
Led to the possibility of mobile internet access, video calls and video streaming.
Card 3
Front
Why must PDC consider 3G transfer rates when developing a mobile app?
Back
Card 4
Front
Give an example to the previous question
Back
Card 5
Front
What does 4G stand for and when was it introduced?
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