Type of users needed to view reports in portal

Question

HI gurus,
I am planning to grant acces to bw reports to some portal users.
The portal users only would visualize iviews based on reports and or querys and will nbot interact with the bw backend system.
I am trying to avoid to create a user in the bw system for each portal user who need to consult the reports because of the sap license cost, but I do not have any idea how to map several portal users to one bw user?
Any idea or help will be welcome.
thanx in advance.

Answer 1

Only by creating roles are you able to assign different pieces of content
to different groups of users.
First Create a  User Group and put your Content in that group, the create a role and assign this group to that perticular Role.
A role is a container for applications and
information that can be assigned to a
particular group of users.
1 The content of a role enables users to perform
the tasks in their respective job description.
2 The content of a role is based on the company
structure and on the information needs of the
portal users in the company.
3 The portal navigation structure is defined by
the sum of the roles assigned to the user.
4 Technically, a role is a hierarchy of folders
containing other portal content objects.
5 Roles can be assigned to users or groups of
users, i.e. the portal role connects users (or
groups of users) to the portal content.
What are Worksets?
1 A role usually consists of one or more
worksets that bundle applications and
information.
2 A workset is a collection of applications
and information that belong together from
a semantic point of view because they are
part of the same activity area (e.g.
controlling or budgeting) of a user.
3 Whereas a role is based on global
company structures, a workset is based on
user-specific tasks or activities (for
example, u201CMy Budgetu201D or u201CMy Staffu201D are
worksets in the u201CManageru201D role).
3 Worksets are building blocks for roles:
One workset can be used within several
roles, and one role can consist of several
worksets.
5 Technically, a workset is a hierarchy of
folders that contains other portal content
objects.
6 Worksets cannot be assigned to users
(only roles can be assigned to users).
Relationship Between Roles and Worksets: Example
Role          :                               Sales Manager
Workset     :                               Budget 
Activities   :                            Monitoring
                                             Planning
                                            Approving
                                             Forecasting
Role          :                                Sales Manager
Workset     :                               Team Leader 
Activities    :                                  Activity assignment
                                                      Hiring
                                               Communication
so... Role will contain the Worksets and Work sets Contain the Activities...
Order is like this...
In Portal Content(Portal ContentDirectory)
-Roles
-Pages
-Worksets
-iViews
hope its clear how to create roles concept in EP.
Thank you ,
Kalyan.