The databank directory structure is created with “world read/write,” permissions but specific items within the structure can be protected differently. You can assign one of the following protection levels (common to most operating systems) to configuration items in the databank:
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None - The item cannot be checked out.
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Read-Only - The item can be checked out without a lock and used or modified, but cannot be checked in.
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Read-Write - The item can be checked out with a lock (guarantees that other users cannot change it while you are working on it) and checked in.
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You can assign a protection level to the following groups:
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Owner - The project member who first created the configuration item in the databank.
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Group - Project members who belong to the same group as the owner (according to the definitions set by the operating system).
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All versions of a configuration item belong to the same owner and have the same protection level.