DCC Digital Curation Manual Instalment on File Formats
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The goal of digital curation is to ensure the appropriate usability of managed digital assets over time. Format is a fundamental characteristic of a digital asset that governs its ability to be used effectively. Without strong format typing a digital asset is merely an undifferentiated string of bits. The information content encoded into an asset’s bits can only be interpreted properly and rendered in human-sensible form if that asset’s format is known. While it is possible for bits to be preserved indefinitely without consideration of format, it is only through the careful management of format that the meaning of those bits remains accessible over time. This instalment investigates aspects of format description, validation, and characterisation that may assist with long-term curation and usability of data.