| 摘要 |
A request from a client to access a file is received at a content provider. A common file that is common to all requesting clients is identified in a first storage location. In a second storage location a personalised file that is unique to said client (based on e.g. client age, device type etc.) is identified. The common file and personalised file are analysed to find their differences. The shared data and the unique data are delivered to the client and the client is instructed to combine the shared data and the unique data together to form the personalized file. This method saves bandwidth at the storage location of the personalised file, since only the differences are transmitted from that location.
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