Dictionary/3000 Reference Manual (32244-90001)

Chapter 3 49
Using the DICTDBM Commands
Using Commands to Define HP Inform/3000 Security
Note that the database file must be directly associated with the IMAGE class or Inform
will not give you access to any of the database sets or elements. Each data set and element
in the database must also be directly associated with the same IMAGE class as the
database file or Inform will not give you access to that data. NOTE: Inform Security
requires element (item) level access to be defined in the dictionary before the element
(item) can be displayed on the Inform Menu. Inform opens a database in open mode 5
which requires security to be defined at the data item level. (See the IMAGE/3000
Reference Manual for more information.)
Depending on how security is to be implemented, a database, data set, or element can
belong to more than one IMAGE class. An IMAGE class can belong to more than one
Inform class.
Inform Groups and Inform Class Relationships - Figure 3-7 shows the relationships
between an Inform group and an Inform class.
Figure 3-7. Relationships between an Inform group and Inform Class
*Relating an MPE or KSAM file to an IMAGE class is only necessary if the file has a
lockword.
Inform groups and subgroups are directly associated to the Inform class. However, in order
to access any elements in the Inform groups, the elements must be associated to an
IMAGE class and the IMAGE class must be related to the same Inform class as the Inform
group. Otherwise, Inform will not allow access to these elements. The database files in
which these elements are contained must also be associated to an IMAGE class. It is
necessary to associate an MPE or KSAM file to an IMAGE class if the file has a lockword.
When Inform opens an MPE or KSAM file and that file has been added to an IMAGE class
which has a password, Inform uses that password as a lockword when opening the file.
That means that if you want Inform to open an MPE or KSAM file that has a lockword and
you don't want to be prompted for the password, you must add the file to an IMAGE class
whose password matches the file's lockword. In doing this, it is recommended that a
different class be assigned to each file or database, and that CLASS-TYPE (MPEF, MPER,
KSAM, or BASE) be used to distinguish them for documentation purposes.
SUB-GROUP
DATABASE
element
element
element
element
INFORM GROUP
*MPE or KSAM FILE
IMAGE CLASS
INFORM CLASS