You need to check how 'Record Rule' works. In OpenERP, records are filtered based on record rules.

See Go to Settings / Security / Record Rules.

For example, you can create a rule to limit a group in such a way that users of that group will see business opportunities in which he or she is flagged as the salesman. The rule can be salesman = connected_user. With that rule, only records respecting the rule will be displayed.

where can i get some information on how to create such rules? syntax guide? api? variable, operators and constant names?

for example? you say:

salesman=connected_user

where did you get that knowledge that "connected_user" is variable refers to a current user, ...

where can i get some information on how to create such rules? syntax guide? api? variable, operators and constant names?

for example? you say:

salesman=connected_user

where did you get that knowledge that "connected_user" is variable refers to a current user, ...