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+# Project/tenant support in the platform #
+
+## Proposer ##
+- Gerardo Garcia (Telefonica)
+- Alfonso Tierno (Telefonica)
+- Francisco Javier Ramon (Telefonica)
+
+## Type ##
+**Feature**
+
+## Target MDG/TF ##
+SO
+
+## Description ##
+The NFV Orchestrator should be allowed to access all the datacenters and 
+services in a carrier network. However, from the perspective of the real 
+operation, it is often desirable to allow the partitioning of the telco cloud 
+space in different projects/tenants, following an equivalent approach to the 
+one at VIM layer.
+
+Thus, it would be desirable that an OSM project/tenant provided a separate 
+space with:
+- A given set of accessible VNFs
+- A given set of accessible NSs
+- A set of running NS
+- Optionally, a number of authorized datacenters (if more than one).
+
+VNF descriptors and NS descriptors might be declared public (available for all 
+tenants) or available for a list of tenants. An NS instance will only run in 
+one tenant.
+
+Users should belong at least to one tenant. By default, admin users should be 
+authorized in all tenants.
+
+## Demo or definition of done ##
+- Create a 2 tenants (A and B) and add some users to them (user_a1, user_a2, 
+and user_b1). Assign different datacenters to them.
+- Check that user_a1 can onboard a VNF and a NS in the tenant A successfully. 
+Check that it is not visible or accessible by user_b1.
+- Check same operation as above but by user_b1 in tenant B.
+- Check that user_a1 can deploy successfully its NS in the tenant A. Check that 
+the NS is not visible or accessible by user_b1.
+- Check that user_a2 can access to the same VNFDs, NSDs, and the running NS 
+available it tenant A.
+- Onboard an additional VNFD and a new NSD that uses the VNF and make them 
+public (e.g. from an admin user).
+- Check that the public NSD and VNFD are accessible from both tenants and that 
+the NS can be successfully instantiated from any of them.
+- Check that each tenant is deploying their NS instances in their corresponding 
+datacenter.
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