The general principle laid down in previous English case law suggested that for an article to be considered a WOAC, it had to be a work of "craftsmanship" with aesthetic appeal, with "more" than just eye appeal, taking into account relevant considerations including the artistic intention of the creator and recognition by experts.
In the leading case of George Hensher Ltd v Restawile Upholstery (Lancs) Limited, it was suggested that hand-painted tiles, stained glass windows and wrought iron gates may qualify as WOAC, whereas mass-produced suites of furniture and simple machine-made garments may not since "artistic" quality is required for a work to qualify for copyright protection.
The issue was considered in Lucasfilm Limited and other v Andrew Ainsworth. The Supreme Court referred to the New Zealand High Court's decision in Bonz Group (Pty) Ltd v Cooke in which it was held that:
"for a work to be regarded as one of artistic craftsmanship, it must be possible fairly to say that the author was both a craftsman and an artist. A craftsman is a person who makes something in a skilful way and takes justified pride in their workmanship. An artist is a person with creative ability who produces something which has aesthetic appeal".
In Lucasfilm, it was held that making Stormtrooper helmets required the activity of a craftsman to realise the vision of the creators of the Star Wars films in which they featured. Therefore, they were works of craftsmanship but not artistic craftsmanship.
Their purpose was not to appeal to the aesthetic but rather to give a particular impression in a film. Lucasfilm established that for a work to be one of artistic craftsmanship:
a) Its creation requires skilful workmanship, and
b) it must be artistic, such that there was creative ability that resulted in "aesthetic appeal".
In the case of Response Clothing Limited v The Edinburgh Woollen Mill Limited, it was held:
a) it is possible for an author to make a work of artistic craftsmanship using a machine;
b) aesthetic appeal can be of a nature which causes the work to appeal to potential customers; and
c) work is not excluded from being a WOAC solely because multiple copies of it are subsequently made and marketed.