1 Semantic Service Oriented Architecture The SSOA Program A Semantically Powered Architecture to Enable Inter-Agency Capabilities Sharing February 9-10, 2006 LCDR Sam Chance Mike Seebold

2 SSOA Problem Domain Analysts Lack Awareness of Available Capabilities (Services)  Sheer Volumes of Services Compounds the Problem Word of Mouth Awareness Typical  Available [XML] Web Services Solution Powerful, but… Lacks Ability to Easily Discover Services Location Dependent; “Stale” references possible Weak, or no, Semantics  When Found, Services Typically not Readily Interoperable, Brittle Machine Interpretable Standards Immature, not Implemented  Resulting Processes are Human-Centric, Ad-hoc and Intermittently Repeated Analysts Spend Too Much Time on IT Related Tasks  Policy Compliance Unmanageable Creative Approaches to Get Job Done May Inadvertently Violate Policy  Results in Fragmented, Sub-Optimal Analysis Long Standing Problem – Analysts aren’t Able to Focus on Analysis

3 SSOA Provides Significant Value SSOA Will Augment XML Web Services by Supporting a SOA that is:  Based on an Extended Jini™ Based Infrastructure from Valaran that Enables Spontaneous Networking & Services Interchange – Location Independent Provides Automated, State-based Recovery from Failures – Self-Healing Supports Dynamic Scaling and Service Provisioning – Enterprise Solution  Designed and Implemented Based on Current and Emerging Standards Enabling Seamless Interoperability Across Services – Preventing Custom Interfaces Separating Interface from Implementation – Abstraction From IT  Exploiting Emerging Semantic Computing Technologies Allows Intelligent Agents to Dynamically Substitute Services – Adaptive Learns Analyst Preferences & Captures Best Practice By Unobtrusive Observation – Predictive Pushes Relevant Services to End Users when New Services Come Online – Awareness Supports Dynamic, Adaptive Workflow Composition & Execution – Automation  Demonstrating Ability to Share Resources Across Disparate Organizations Enhances Current SOA Projects by Acting as Risk Reduction Task – Strategic

4 Status to Date – Great Deal of Interest SSOA-1 Development  CTC is Prime Contractor  Acquire & Integrate COTS Components: Valaran Corporation, Agent Logic & Ontology Works  12 Month Project In Process Initial Demo Ahead of Schedule (6 Months), Final Deliverable at 12 months SSOA-2 Development  CTC is Prime Contractor and Integrator  Extending Existing SSOA Platform: Valaran Corporation, Agent Logic, Ontology Works, SandPiper Software, Siderean, University of North Carolina  12 Month Project In Process Beginning Process for Two New SSOA Projects  Additional Agencies More Advanced Cognitive Agent Functions Security & Deployment Issues

5 SSOA Major System Components Semantic Service Bus (SSB)  Provides Infrastructure for Distributed Services Operations  Ensures Reliability and Availability of all Services  Defines and Enforces Standard Interfaces and Layer of Abstraction Semantic Service Registry (SSR)  Provides Machine Interpretable Service Descriptions (Semantics)  Enables Event Processing Agents to Discover New and Relevant Services Semantic Process Registry (SPR)  Provides Repository for Workflows  Supports Best Practice Sharing for SSOA Users Semantic Metadata Registry (SMDR)  Provides Ontology Repository For all Knowledge Objects (e.g. Service Descriptions, Meta-Data Elements, Key-Word List, etc)  Facilitates Ontology Sharing, Merging and Alignment Event Detection and Response (EDR) Service  Event Monitoring and Alerting Functions  Business Process Description and Event Processing Agent Execution  “Nervous System” of SSOA

6  Intelligent Event Processing Agents SSOA System View  Semantic & Agent Components  Services  Business Services Dynamically Exchanged  (Sharing/Awareness) SPR SSR EDR SMDR

7 SSOA Technical Foundations Service Oriented Architecture (SOA) Semantics Based Computing Standards Based Design (SBD)  ISO Metadata Registries Standard  ISO Meta-Model Framework Standard  ISO Common Logic Standard  OMG Ontology Definition Meta-Model Standard  W3C Semantic Web Services Framework Publish, Find, then Bind Register Services Discover Services Invoke Services

8 EDR: Event Detection and Response Provides Event Detection for Operators Monitors Sources/Sensors for State Changes Communicates Alerts to Humans and/or other Agents Executes Automated Business Processes Exposed as Service on SSB Reduce Network Traffic From Agent Logic

9 SSB & SSR Components From Valaran, Inc. SSR

10 SMDR Based on XMDR Project Multi-Agency, Collaborative Project Extend Semantics Management Capabilities of ISO/IEC Cross-Domain, Various Structures Test & Demo Extended Capabilities of Reference Implementation (RI) Produce Design for Operational Registries Adapt & Adopt Emerging (Semantic) Technologies Propose Revisions to Parts 2 & 3 (Ver. 3) Help Resolve Registration & Interrelation Issues for Complex Metadata Standards

11 Event Detection & Response Process Execution XMDR XMPR

12 Proxy Proxy MK C MK C MK C MK C Notional SSOA Operations

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15 ARCHANGEL

16 Technical Discussions Questions?

17 Backup Charts

18 SSOA 1 Use Case: Combat Search & Rescue Relevant Use Case to Many Key Decision Makers  Is Only One of Many Potential Use Cases to Showcase SSOA Demonstrating SSOA’s Service Discovery Abilities  Enabling Multi-Site Collaboration Between Multiple Actors in Process  Providing Real-Time Access to all Relevant Services in an Effort to Significantly Reduce Overall Processing Time From Receipt of Request to Launch Order Leveraging Event Detection and Response Service Focused on:  Multi-Source Information & Service Aggregation  Intelligent User Notification and Alerting  3rd Party Workflow Execution SSOA 2 Use Case  Currently Planned to Focus on Entity Extraction Use Case