Depending on which version of OpenERP you are running, specify this if you want more specific answers. If you ask this question, you probably aren't using 7.0 yet, but it might be useful to know though.
Openerp 7.0
OpenERP 7.0 : , , : ( ), node , .
: create, write, unlink.
user1576199, , , , . , :
<tree create="false" delete="false">
....
</tree>
or
<kanban create="false" edit="false">
....
</kanban>
etc..
OpenERP 6.1
, OpenERP, . simahawk - 6.1, , , .