1. What is Sky.NET?
A large-scale simulation framework geared towards complex entity-entity interaction scenarios.
Highly flexible, extensible system
Simulations are decomposed into entities (with properties), behaviors (actions), and rules.
Dynamic typing system allows generalized descriptions of entities, actions and rules.
Everything is run-time modifiable.

2. Entity-Entity Interactions
Abstract Types
Entity-Entity Interactions
Everything is an Entity
Entities Perform Actions
Weapon:
Attack:
Robot:
Defend:
Tony
Bob
Entity Instances
Throw Weapon
Entity Instance Behaviors (Actions)
Run Away
Bomb
Entity Instance Property
Type System Generalizes Entities, Actions and Rules

3. Rules Govern Interactions
Weapon:
Attack:
Robot:
Defend:
Tony
Bob
Rule
governing
attacks
Throw Weapon
Run Away
Rule
governing
movement
Bomb
Rules allow the simulation system to mediate interactions, enforcing desired semantics. In this case, Tony should have an opportunity to react to the incoming attack and defend himself. Thus, the simulation halts the attack, notifies Tony, Tony reacts by running away, and then the simulation continues the interaction. Tony now successfully runs away.
Type system allows generalized behaviors
and rules to be defined
 greater flexibility and extensibility

4. Extremely flexible and scalable!
Sky.NET Operation
Sky.NET Architecture
Server cluster stores data and performs operations.
Gateway/proxy to outside world.
Multiple remote clients.
Client sends action request to server.
Server invokes action on entities as per rules using class hierarchy.
Server responds with any result.
Messages and subscribed data may be sent asynchronously.
Server Cluster
Entities
Actions
Rules
Class Hierarchy
Gateway
Subscribed Data Feeds
Action Requests
Action Results
Messages
Multiple Remote Clients
Internal entity-entity interactions identical to client-entity interactions!
Extremely flexible and scalable!

5. Sky.NET is Built for Change
Flexible
Handles a wide variety of different interactions
Dynamically reconfigurable: All aspects can be modified and loaded at run-time.
Extensible
Highly scalable: allows essentially unlimited additions.
Designed for parallel back-end processing

6. Applications of Sky.NET
Epidemiology Simulations: e.g. Disease Outbreak
and Spread
Conflict Scenarios: e.g. Anti-Terrorist Simulations
Complex Market Dynamics: e.g. Telecommunications Game
Virtual Environments:
e.g. Social Interaction
Modeling
Resource Management: e.g. Oil Flow Routing
Disaster Planning: e.g. Hurricane Evacuation Training