HP MPE/iX 6.x Operating System manual 154

Table 6-9. User Type Definitions

User Type	Mnemonic Code	Description
Any user	ANY	Any user de￿ned in the system, including all
		categories de￿ned belo w.
Account librarian	AL	User with account librarian capability, who can
user		manage certain ￿les within the accoun t that may
		or may not all belong to one group.
Group librarian	GL	User with group librarian capability , who can
user		manage certain ￿les within his home group
Creating user	CR	User who created this ￿le
Group user	GU	Any user allowed to access this group as his logon
		or home group, including all GL users applicable to
		this group.
Account member	AC	Any user with authorized access under this
		account, including access through AL, GU, GL, and
		AC.

For detailed information on this topic, refer to Accessing Files Pr ogrammer's Guide (32650-90017).

The user access modes to a ￿le are determined b y four separate lev els of security settings. All four levels are checked and must be passed to gran t a user access to a ￿le. The only t wo levels over which a standard user has con trol are the ￿le and loc kword levels. However, it is important for a standard user to understand all lev els of the securit y system, since the combination of all the settings determines the user's access to the ￿le. Figure 6-16 sho ws the security levels checked when a user attempts to gain access to a ￿le.

Figure 6-16. Security Level for File Access

6-40 File System