database - Normalisation 1NF

Question

I thought I understood normalization and now realising I'm not sure if I do. Basically, the internet is showing different ways of doing it!?

For 1NF, some articles say to remove repeating groups, and while doing so, bring a copy of the original entity's primary key to the new entity and create a composite primary key. However, other articles tell me to remove repeating groups, and while doing so, leave a foreign key in the first table and have a (non-composite) primary key in the new table (this FK and PK are the same).

I have included screenshots as examples.

I am unsure of which way is correct as they'd both give different results? I always thought it was the first way.. Can anyone explain please?

First: way

Second way:

Second way again:

Answer 1

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