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Subject: RSA 2008

We had a very invigorating and useful conversation yesterday regarding the

David Staggs was kind enough to put forth a scenario but other members felt
as if it was too aggressive and possibly unachievable. 

We have set a call for next Tuesday, 13 Nov at 10 AM EST. We need to get
this sorted out, so I firmly hope that ALL potential participants set this
as a priority call.

David just sent an additional overview to the list titled 'Use Case Models'
(which I have attached) - let me know if you need more information. 
***I have also included David's follow-up email related to this document and
our meeting at the end of this message for your review. 

Here is the call-in info:

Coordinator Name: deeschur
 Email: dee.schur@oasis-open.org

 Free Conference Call 
 Conference Dial-in Number: (605) 772-3100
 Host Access Code: 505991*
 Participant Access Code: 505991#

 International Dial-in Numbers 
 Austria: 0820 4000 1552
 Belgium: 070 35 9974
 France: 0826 100 256
 Germany: 01805 00 76 09
 Ireland: 0818 270 021
 Italy: 848 390 156
 Netherlands: 9004 353 535
 Spain: 902 886025
 Switzerland: 0848 560 179
 UK: 0870 35 204 74

Please let me know your status if you are unable to attend.


-----Original Message-----
From: Staggs, David (SAIC) [mailto:David.Staggs@va.gov] 
Sent: Friday, November 09, 2007 11:51 AM
To: Prateek Mishra; Anthony Nadalin
Cc: Dee Schur; xacml@lists.oasis-open.org;
xacml-demo-mktg@lists.oasis-open.org; xacml-demo-tech@lists.oasis-open.org
Subject: RE: [xacml] Re: [xacml-demo-tech] RE: [xacml] RSA 2008

Dear Colleagues,

Sorry for the long e-mail; here is a summary:
1. Proposal for a "focus" call next Tuesday, 11/13/07 for the RSA demo.
2. Explanation of HITSP's interest in an XACML "privacy" scenario.
3. Summary of were we are at.
4. Link to the document "Using XACML for Privacy Control."
5. Sources for use case ideas.

As stated in the 11/08 minutes, I suggest a focus call next Tue Nov 13
at 10 AM EST.

Anil requested a summary of the role the Healthcare Information
Technology Standards Panel (HITSP) plays (specifically concerning the
RSA demonstration):

HITSP has no direct role in the demonstration.  HITSP SPTC has
identified OASIS XACML as a necessary standard to meet DHHS ONC AHIC
healthcare use cases requirements for secure authorization for security
and privacy. The RSA demonstration is consistent with the HITSP Access
Control construct. 

HITSP's goal is develop a Security and Privacy Access Control profile in
support of the American Health Information Community (AHIC) access
control use case in a standards-based manner for the U.S. Department of
Health and Human Services. Selection of standards will drive government
agencies, like the Department of Veterans Affairs, in IT. HITSP is
administered by the American National Standards Institute (ANSI).  A gap
in standards has been uncovered by HITSP addressing the security and
privacy requirements for enforcing privacy and access control policies
between multiple healthcare information systems.  So the VHA, as a
participant in HITSP, is very interested in the proposed RSA
demonstration as a step forward in establishing consensus on how a
Security and Privacy Access Control profile.

Additional information at: www.ansi.org/hitsp/

It may be helpful to discuss the current status of the RSA opportunity.
Neither HITSP nor the VHA has a particular approach selected.  The VHA
wants to stimulate discussion in this area to support the future
(obvious) need to address privacy and access control in the VHA's
mission to supply healthcare to US veterans and dependants.  We suggest
the TC focus just on the XACML piece of the puzzle for the RSA
demonstration - which is only a part of the larger HITSP construct. 

I have discussed the opportunity to address privacy using XACML at
several TC meetings and with several TC members, including the co-chair
(Hal).  I think using the previous demonstration would be helpful if it
allows us to focus the effort on the goal of administering patient
privacy electives using XACML. That would mean switching the text from
stockbrokers to clinicians but may save us from reinventing the
infrastructure. The immediate task is to identify one or two use cases
and settle on the preferred XACML approach.

Finally, the description circulated at the last TC meeting was written
as a quick "placeholder" to meet Dee's deadline for maintaining our
opportunity to participate in the upcoming RSA conference.  The text is
very general and I believe whatever the TC comes up will agree with the
general wording. 

Here is a link to the document discussed briefly at the last XACML TC
call entitled "Using XACML for Privacy Control:"

The paper was found on the cover pages hosted by OASIS:

The paper may be a useful starting point, or it may not.

I feel this is a great time to construct a use case using XACML to
support privacy enforcement.  The question is "how can access to patient
information be secured per a patient's privacy elections" after it has
been received by another institution or department.  Since I believe the
immediate task is to identify one or two use cases, I will attach a
document discussing some scenarios for discussion.  

The document is the entire Use Case Model document that was produced as
part the work that was funded last year by Canada Health Infoway on
Consent Management (courtesy of Patrick Pyette).  The "Create Consent
Directive to Disclose PHI" and the two "Override Consent to Disclose"
Use Cases may be useful as a starting point.  They are all oriented to
the Canadian experience, but with a bit of work I think could be
reworked to be applicable to any scenario.  I realize some may have
strongly held opinions on these use cases, they are merely suggestions,
we can make up own use case based on the decision of the TC.

Sorry for cross-posts.


David Staggs, JD, CISSP (SAIC)
Veterans Health Administration
Chief Health Informatics Office
Emerging Health Technologies

Use Case Models.pdf

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