HLA Use Case Evaluations

1
Research, Development and EngineeringUsers Forum
HLA Use Case Evaluations
I/ITSEC Special Event Review Interim Meeting
19-21 Jan 1999
Jesse L. Blair Air Force Research Laboratory
2
HLA Use Case EvaluationsInterim Meeting
PresentationAgenda

• Quick Review of HLA Use Case Process
• Presentation of Use Case Results Matrix Approach
• Presentation of Experimental Results
• Based on Presentation Templates
• Based on Use Case Input Profile Documents
• Open Discussion on Spring SIW Presentation to
  RDE User Forum

3
I/ITSEC Special Event

• Purpose Presentation of the most recent HLA Use
  Case Evaluation Results with the goal to impact
  the HLA and its related applications through
  collective Research, Development, and Engineering
  (RDE) user feedback

4
Special Event Goals

• Presentation of RDE requirements and results
• Provide RDE focus for HLA research and
  development
• Provide collaborative framework for highlighting
  findings

I/ITSEC 1998
5
HLA Use Case Areas of Interest

• Run Time Infrastructure (RTI) performance and
  issues
• Federation Object Model (FOM) development process
  and use
• Catalog and availability of current HLA assets
• Impacts on infrastructure components
• Visualization methodology and issues
• Exercise and Time Management
• Stealth Tools
• Network Controller and Routing Space
• Data Logger
• Generalized case results and requirements for
  RDE simulation domains

6
User Case Template and Characterization
Experimental Objective Simulation Description
/Domain Design Approach and Network
Architecture Critical HLA Functional/Performance
Criteria Major Milestones HLA Lessons-Learned
Unit or Mid-level Simulations

• Characteristics
• FOM Used
• RTI Version
• Time Management
• Network Topology

• Windows N, Unix etc
• Ada, C, JAVA, etc

7
Use Case TemplateforPanel Presentations

• Experimental Objective
• Simulation Type (Constructive, Virtual, or Live)
• Simulation Description
• Simulation Domain (Research, Development,
  Engineering, Analysis, and other)
• Design Approach (Legacy, Legacy with Gateway or
  HLA )
• Network Simulation Architecture Overview

8
Presentation Template (Continued)

• Characteristics of Simulation
• Federation Object Model Used
• Run Time Infrastructure Version Used
• Network Topology and Routing Space
• Time Management (if applicable)
• What HLA Tools Were Used?
• Was Simulation HLA Compliance Certified? Yes or
  No
• Was Objects Delivered to a Library? Yes or No
• Was Fed-up Process Used? Yes or No
• Critical HLA Functional/Performance Criteria
• Major Milestones
• HLA Lessons Learned
• Summary/ Conclusions

9
RDE HLA Use Case Matrix Approach
10
RDE USE CASES

• Real Time (RT) - Emphasis is on real-time or near
  real-time execution. Data latency is generally a
  core concern. Best effort is the most common
  transport mode.
• Complex Models (CM) - Characterized by
  engineering federations with complex model
  hierarchies, attribute sets and subscribe/reflect
  mappings.
• Proliferated Objects - Federations with large
  numbers of entities such as tanks, mines,
  soldiers, etc.
• Hardware-in-the-loop (HW) - Require interface
  with actual hardware devices, from entity to
  component level. Generally requires time
  synchronization to external standard and reliable
  transport.

11
Example Profile
12
Example Profile Contd
13
Example Profile Contd
14
Example Profile Contd
15
Noted Issues

• Real-time performance
• Latency
• Registration latency and throughput
• Initial update latency and throughput
• Time Management
• Development of Reference FOMs
• Ownership Management
• Development of Object Classes
• RTI per object memory load
• Functional support for request based filtering
• Lack of RTI support for large number of objects
• Interoperability with growing number of RTIs
  being produced

16
Upcoming Plans

• Interim RDE Forum Meeting January 19-21
• Analyze performance data and develop matrix to
  characterize RDE needs
• 1999 Spring SIW RDE Forum March 16
• Outbrief to forum on I/ITSEC Special Session
• Report on needs development, shape forum
  activities
• Interim RDE Forum Meeting June 1999
• Refine RDE needs characterization
• 1999 Fall SIW RDE Forum September 1999
• Present and vote on RDE needs
• Present to SISO and other HLA communities

17
HLA USE CASE EVALUATIONSSpecial Event Panel

• Panel Members
  Use Case Experiment/Title
• Russ Richardson, SAIC HLA RTI 1.3
  Performance Results using the DMSO Benchmark
  Tests
• Mr. Ernest Payne, Raytheon Real-time
  Performance of RTI Version 1.3
• Sponsor Air Force Research Laboratory
• Mr. Keith Briggs, iMT Corp HLA Support
  for Proliferated Mine Objects
  Sponsor U.S. Army Night
  Vision Laboratory
• Mr. Bret Givens, Veridian Corp
  Migration of Legacy Applications
  
• Sponsor Air Force Research Laboratory
• Mr. David Roberts, Georgia Tech Building an
  HLA Radar Federation from
• Legacy Simulations
• Mr. Mike Kamrowski, Raytheon Live
  HLA Experiments Supporting a Missile
  System Testbed
• Mr. Patrice Meloche, CAE Electronics Joint
  FAA/Army/NASA Federation