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OCR A2 Computing F453 Official Thread 22/06/2016 Exam Discussion watch

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    (Original post by Aydin7)
    I did the same

    customer-----<-order-----<-item
    single customer can place many orders and orders may have many items
    That's exactly what my diagram was, yay.
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    (Original post by jackpcraig)
    That's exactly what my diagram was, yay.
    we got it right m8
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    Surely if an item has many orders though it is assumed that that item can be ordered in many different orders so should be many to many or have a linking entity...
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    (Original post by Aydin7)
    I did the same

    customer-----<-order-----<-item
    single customer can place many orders and orders may have many items
    Got this too - although admittedly I feel OCR should have phrased the question better!
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    (Original post by John323)
    Surely if an item has many orders though it is assumed that that item can be ordered in many different orders so should be many to many or have a linking entity...
    You'd assume that, but it didn't state that it's many to many. If you're on ebay, each item can only be sold once, I guess the shop must have a similar format.
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    Also the the question explicitly said 3 tables, so I'd imagine that you couldn't have a many to many relationship.
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    (Original post by AKC...)
    Also the the question explicitly said 3 tables, so I'd imagine that you couldn't have a many to many relationship.
    It didnt say the table was in 3rd Normal form though
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    (Original post by John323)
    It didnt say the table was in 3rd Normal form though
    Because then it gives you the answer, it specified 3 tables and the way they're connected.
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    Ok so it specified the product can only be ordered once? Im guessing what they might do is give the 3 marks for the lines which they said to draw and leave the last 1 to assumption
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    (Original post by Aydin7)
    I did the same

    customer-----<-order-----<-item
    single customer can place many orders and orders may have many items
    I also did thatm does anyone actually know the correct answer?
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    (Original post by Alfie90)
    I also did thatm does anyone actually know the correct answer?
    I thought it should be many to many from the context but because it said at the end that an order can have many items I just put a one to many
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    So what marks does everyone think they may have got?
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    53/100 for A in F452
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    (Original post by MrSplash)
    53/100 for A in F452
    Yeah I am surprised at how low it is.
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    Compared to last year, F451 increased by 8 marks for an A and F452 decreased by 13 marks.
    All my other exams are mostly +/-1 on last year, what the **** are OCR doing? Expected the increase/decrease, but not by such a margin.
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    (Original post by jackpcraig)
    Yeah I am surprised at how low it is.
    I think that 8 marker has alot to do with it tbh.
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    F454 as consistent as ever though - bet it's because everyone uses the exemplar material! Just hope I haven't been moderated down for something stupid..
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    How much has the F453 paper changed by? Also does anyone have the F453 paper and MS? Thanks
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    Hi everyone

    Happy results day! How did Computing go for you?

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    A* in Computing, literally just on the border! My F454 was moderated down quite a bit though - not that I care!
 
 
 
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