Two-Degrees To SensorWeb
Pat Cappelaere, Vightel Corporation
Stu Frye, SGT
Dan Mandl, NASA GSFC
CTS 2009, Baltimore -- May 18-22,2009

Title Clue
The trivia game Six Degrees of Kevin
Bacon is based on the concept of the
small world phenomenon and rests on
the assumption that any actor can be
linked through his or her film roles to
actor Kevin Bacon
Every Actor has a
Bacon Number!

Every Scientist has an
Erdös Number
Scientists and mathematicians have
been calculating their Erdös number for
years. Paul Erdös was the Kevin Bacon
of mathematicians, having published
more than 1400 papers with numerous
collaborators. Anyone who was a co-
author with Erdös has an Erdös number
of one. Their collaborators, in turn, have
an Erdös number of two, and so on.
The network of mathematicians is a
small-world network.

6.6
\"Worldwide Buzz: Planetary-Scale Views on an Instant-
Messaging Network,\"
Eric Horvitz of Microsoft Research and Jure Leskovec of Carnegie Mellon
University analyzed 30 billion conversations among 240 million people
using Microsoft Instant Messenger in June 2006

✓ California Fires
✓ Myanmar Cyclone
✓ Zambezi Flood...
SensorWeb
Support Humanitarian Assistance and Disaster Relief Efforts
Provide End-Users Customized Data They Can Use To Make
Decisions In the Field
A NASA ESTO Technology Project With OGC Standards
5

Droughts
Hurricanes
Fires
Floods

Technology
OGC Standards
- SPS, SOS, WPS, WFS, WMS, WCS...
Automated Workflows
- WfCS, Wf-XML...
Data Dissemination
- GeoRSS Product Feeds, GeoTorrents
Data Visualization
- Google Earth, WorldWind...
Notifications
- Twitter, SMS, GeoActivity Streams...
Scalable Architecture
- Resource Oriented Architecture (Not SOAP/WSDL)

Collaboration
Who Are Your Users?
Which Are The Legitimate Application
Consumers and Service Providers?
Are We or Can We Be Sharing The Data With
You?
Can We Do Secure Transactions?

Small World Communities
Reality
GEOSS = Many Communities
Hard To Manage
Centralization Will Not Work

SERVIR/CATHALAC
Red Cross
NGIT
USGS IKHANA
MODIS
NASA
DOD
SPOT
GMU SensorWeb
Collaboration
JPL
Challenge
AFRICOM
GEOSS
RCMRD
Hubs
NOAA Users
CA Firefighters Services
Sensors

First Responder
Dispatch Office
NOAA NGIT
3
(FRDO)
GFS Model Weather WPS (Plume)
Problems
SPS WPS
Consumer SOS
First Responder: Andy
NASA

Other Requirement
The RESTFul Way

Leveraging OpenID
Federated Identity Management
First Responder
Dispatch Office NASA
(FRDO)
OP OP
SPS WPS
First Responder: Andy
SOS

Creating Temporary Trust
First Responder NASA
Dispatch Office
(FRDO)
OP
OP
Security: Frank
FRDO Security: Sheila
WhiteList
User Profiles
- Roles
SPS WPS
SOS
First Responder: Andy

Single Sign-on
User Profile Contains Permissions!
First Responder NASA
Dispatch Office
(FRDO)
OP
OP
WhiteList
3: Redirect
Security: Frank
4: Auth
2: Check Whitelist
5: Auth/SREG/AX
SPS WPS
First Responder: Andy
1: Signon SOS

OpenID For Applications
First Responder NASA
Dispatch Office
(FRDO)
OP
OP
WhiteList
1: Register
3: Check Whitelist
2: Upload Public Key
SPS WPS
Consumer SOS
Private Key

Hybrid OpenID + OAuth
First Responder NASA
Dispatch Office
(FRDO)
OP
OP
WhiteList
4: User Grant?
5: User Grant?
3: Check Whitelist
6: Granted/Denied SPS WPS
Async Notification
7: Data
Consumer SOS
2: OAuth Transaction
1: Request
First Responder: Andy

Grant Revocation
First Responder NASA
Dispatch Office
(FRDO)
OP
OP
Remove Entry
From White List
Revoke Grants
SPS WPS
Consumer SOS
First Responder: Andy

Tricks Disclosure
Custom OpenID Provider
WhiteList
Extended Profile & AX
OpenID for Applications
No Change to OpenID Protocol
Leverage Existing OpenID Extensions: SREG & AX
Simpler OAuth Protocol (one-legged) & RSA

SWE Collaboration Challenge
2 Two Degrees
1 2
What is your SWE Bacon Number?

THANK YOU
Pat G. Cappelaere
Contact Information:
=cappelaere
http://blog.geobliki.com
Cell:410-340-4868
pat@cappelaere.com