1. Esri WebGIS Platform
How we implemented ArcGIS, and you can too.

2. Agenda
• Customer Need
• Deployment Option
• Towards Authority to Operate (ATO)
• Challenges
• Solutions
• Feedback
• Q&A
Feb 2017 Harsh Prakash, PMP, GISP 2 / 10

3. Customer Need
Centers for Medicare & Medicaid Services (CMS) – “In order to improve
the effectiveness of detecting and potentially preventing fraud, waste,
and abuse, CMS implemented the ArcGIS Platform as an additional BI
Tool.”
Anomalies & Outliers on the Map:
Referrals Made > 50% Change over Time Similar Providers
Isochrone Around Provider Travel Time of Service Stops
Providers by Specialty Code Closest Provider
Summarize Beneficiaries
Feb 2017 Harsh Prakash, PMP, GISP 3 / 10

4. Big Data
(OLAP)
Deployment Option
Hybrid & Disconnected
• ArcGIS Portal, ArcGIS Servers (federated, cluster), ArcGIS Server
(unfederated, stand-alone), ArcGIS DataStore, StreetMap Premium
• ArcGIS Online
Feb 2017 Harsh Prakash, PMP, GISP 4 / 10

5. Towards ATO
Project
• Planning & Design
• Workshops – Hardware & Requirements
• eXpedited Life Cycle (XLC) Process – Technical Review Board (TRB)
• Architecture Review (AR)
• Preliminary Design Review (PDR)
• Detail Design Review (DDR)
• Security Control Assessment (SCA)
• User Acceptance Test (UAT)
• Operational Readiness Review (ORR)
Feb 2017 Harsh Prakash, PMP, GISP 5 / 10

6. Challenges
Environmental
• Not Public-facing – No PII/PHI could leave to arcgis.com
• 3-Zone Architecture – For ArcGIS token, needed to negotiate SSL
handshakes and establish trust to route authentication between daisy-
chained servers
• Multi-VPN & Multi-NICs – Different networks for different groups
Project-specific
• HTTPS – Needed to decrypt
• No Web Adapter – Needed to proxy without
• Red Hat Enterprise Linux (RHEL) Version – Support
• ODBC Driver – Teradata
Feb 2017 Harsh Prakash, PMP, GISP 6 / 10

7. API Query “Find all Providers X miles from Y for these Beneficiaries”
Foreground Data
From Integrated Data
Repository (IDR)
Background Map
From ArcGIS –
Internal & External
Web Application
Map Sandwich
Managerial
• Transparent Communication
• Timely Escalation
Technical
• Infrastructure as a Service (IaaS) – Rapid piloting & prototyping in Amazon Web Services (AWS) as
AWS Partner – Takeaway Alert!
• Internal Basemaps – e.g. Aerial imagery from National Agriculture Imagery Program (NAIP), USDA
• Citrix – For ArcGIS Desktop
• Pass-through System Design
• Reverse Proxy
Solutions
Feb 2017 Harsh Prakash, PMP, GISP 7 / 10
Fiddler

8. Solutions – Data
Technical
• StreetMap Premium – On-premise Geocoding – ¼ Billion!
Production (approx.)
• 121 million Beneficiary addresses
• 1.7 million Provider addresses
• 19 million Claim addresses
Validation (approx.)
• 121 million Beneficiary addresses
• 1.7 million Provider addresses
• 1.6 million Claim addresses
Development (approx.)
• 21 million Beneficiary addresses
• 1.6 million Provider addresses
• 1 million Claim addresses
Feb 2017 Harsh Prakash, PMP, GISP 8 / 10

9. Lessons
• Advantages of ArcGIS
• COTS – Users & Roles, LDAP Integration, Security Model,
SDLC, etc.
• Raw Speed of Development – E.g Production-ready on-
premise on-the-fly drag-and-drop geocoding with a small team
in a few months
• Tight Peopleware Coordination – Esp. where
Horizontally Sliced Projects
Feb 2017 Harsh Prakash, PMP, GISP 9 / 10
COTS
Custom
Development
Backend
Frontend
Infrastructure
Teams

10. Q&A
@gisblog
Feb 2017 Harsh Prakash, PMP, GISP 10 / 10