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The concept of copyright originates with the Statute of Anne (1710) in Britain. It established the author of a work as the owner of the right to copy that work and the concept of a fixed term for that copyright. It was created as an act "for the encouragement of learning", as it had been noted at the time that publishers were reprinting the works of authors without their consent "to their very great detriment, and too often to the Ruin of them and their Families". As such, copyright was first created with the intention that authors might have some control over the printing of their work and to receive some financial recompense, so that this would encourage them to write more books and thus to aid the flow of ideas and learning. As the act itself says: "for the encouragement of learned men to compose and write useful books".The 1886 Berne Convention first established recognition of copyrights among sovereign nations, rather than merely bilaterally. Under the Berne Convention, copyrights for creative works do not have to be asserted or declared, as they are automatically in force at creation. In these countries, there is no requirement for an author to "register" or "apply for" a copyright, or to mark his or her works with a copyright symbol or other legend. As soon as a work is "fixed", that is, written or recorded on some physical medium, its author is automatically entitled to all copyrights in the work, and to any derivative works unless and until the author explicitly disclaims them, or until the copyright expires dedicated servers. The Berne Convention also resulted in foreign authors being treated equivalently to domestic authors, in any country signed onto the Convention. The UK signed the Berne Convention in 1887 but did not implement large parts of it until 100 years later with web designer the passage of the Copyright, Designs and Patents Act of 1988. The USA did not sign the Berne Convention until 1989.

The most important issue in this style of case analysis is that the cases should be collectively exhaustive: everything is covered. The condition that they should be exclusive, while convenient backup, is not to be assumed lightly; for example a patient’s liver problem might be caused by hepatitis file recovery and abuse of alcohol, with one factor not ruling out the other. This points up the distinction between exclusive or, and logical disjunction which is the default meaning of ’or’ (in logic, mathematics and science) and which is non-exclusive. Case analysis of the non-overlapping kind is a special case, only cheap hosting.The logical roots of the Holmes remark speak to the principle of excluded middle. That indicates the importance to case analysis of logical disjunction: stringing together propositions with the logical connective "or". Medical diagnosis can indeed follow the Holmes pattern, with a patient’s symptom possibly caused by a number of conditions: the patient suffers from A or B or ... or illness I; see differential diagnosis. Deductive logic is applied domain registration to reducing the number of cases; see case-based reasoning.