1. Trappist Magic Quadrants
Assumptions :
From SP perspective (i.e. being an SP)
LDAP = a data repository for an SP or an app
Assume established SP Attribute Release Policies

2. data simplicity
SCIM
LDAP
data richness
SAML
SPML

3. code simplicity
SCIM
LDAP
code existence
SPML
SAML

4. push protocol support
LDAP
SPML
SAML+Change Notify
pull protocol support
SCIM
(SP acting as REST endpoint)

5. just-in-time
SPML
SAML+CN
LDAP
just-in-case
SCIM

6. pull
bootstrap SP
existing SP
changelog
snapshot
one thing
everything
subscription
batch
push

7. Kuali Ready
LDAP*
SCIM
SAML*
Payroll
SAML
LDAP
SPML
LDAP* = Virtual Federated LDAP
SAML* = SAML + Change Notify

8. cloud
federated

9. IDMS interface
SP interface