3. Core thesis 3 Personal data stores and PDX provide a strong, user-centric foundation for both person-to-person relationships (federated social web) & person-to-business relationships (vendor relationship management)

7. Phil Windley* on PDX 7 “ One thing we discovered with KRL (Kynetx Rule Language) early on was that interesting rulesets were often going to tie to multiple sets of permissioned data and that having a user go through multiple ‘allow-deny’ ceremonies when they start up was a bad user experience. PDX solves that problem.” * Founder and CTO of Kynetx (kynetx.com) and archictect of Kynetx Rules Language (KRL)

10. XDI DATA IN PDS 10 =!1111.aaaa.bbbb.cccc <-- =alice --> $is =(http://alice.exampleopenid.com/) =(mailto:alice@mydata.org) $is$a +person +street &quot;100 Main St&quot; +city &quot;Seattle&quot; +zip &quot;98101&quot; +country &quot;USA&quot;

11. XDI MESSAGE TO PDS 11 =!2222.xxxx.yyyy.zzzz <-- =bob --> $get / =!1111.aaaa.bbbb.cccc <-- =alice --> +street +city

12. XDI LINK CONTRACTS (1) 12 =!1111.aaaa.bbbb.cccc$has$1 <-- =alice --> $is$a $has $has$a $a $get / =!1111.aaaa.bbbb.cccc <-- =alice -->

13. XDI LINK CONTRACTS (2) 13 =!1111.aaaa.bbbb.cccc$has$1$a <-- =alice --> $is$a $a $is$has =!2222.xxxx.yyyy.zzzz <-- =bob -->

16. 15

17. 16

18. 17