1. MOWLES Team Update
Omar AbuRealh (SE), Systems Engineering, Reporting and Presenting
Robert Collier (OR), Customer Liaison and Team Lead
Joseph Pack (SE), Evaluation Developer Tool

2. Overview Client Meeting Tool Design MBSE Design Moving Forward
ACRONYMS
Note: Acronyms used in this presentation are general systems engineering acronyms and not specific to this particular task:
BDD - Block Definition Diagram
DSS - Decision Support System
GPU - Graphics Processing Unit
IBD - Internal Block Diagram
MBSE - Model-Based Systems Engineering
MOE - Measure of Effectiveness
MOP - Measure of Performance
USB - Universal Serial Bus

3. Client Meeting: Overview
Met with customer on Friday
Clarified “requirements”/desires
Clarified George Mason team’s project scope and expected contribution to long-term effort
Discussed scope of input parameters
Discussed expectations for final deliverables (MBSE ‘static’ models and decisions support system (DSS) tool to enable analysis)
We discussed the exact design and of the vehicle being designed as well as our current options for visual tools.
Additionally, the complete problem space and nature of the behavior of the visual tools was explained and possible solutions were proposed to resolve them.
Finally we discussed the Parameters with which we wish to measure

4. Client Meeting: Lessons Learned
Sensor discussion dominated technical conversation
Three basic sensors were identified
Photogrammetry: Works in Low Detail environments, ie cleanly made tunnels and buildings
Light Coding: Works better in high detail environments
Time of Flight: works better in high detail environments

5. Tool Design: The Use Cases
Three Use Cases for DSS operation were identified
User Runs Analysis: Run an analysis of the behavior of the system in the field
User Adds a Component: adds a component to the available component to be analyzed
Add a Platform
Add Software
Add Sensor
Add Component Parameters
User Changes Parameter Value: User changes a parameter for an attribute
Generated Activity Diagrams from each use case

6. Tool Design: Creating the Use Cases
Note that execution of the tool allows for adding different components (platform, sensor, software) via parameter values. Adding new parameters would involve the MBSE products.

7. Tool Design: Activity Diagram for ‘Run Analysis’
Initial activity diagrams are ‘living models’ and will change as more detailed functionality in the DSS is identified and more complex analytical processes are defined.

8. MBSE: Current Products Overview
Current Model Based Systems Engineering (MBSE) products include a package diagram and a block definition diagram (BDD)
The Package Diagram Describes the individual components within the system and the external actors to the system
The Block Definition Diagram describes the way that the components within the system interact with each other and with the outside system. Here the BDD shows the internal system of the DSS and the MOWLES itself and how the interact with regard to the operator
‘Next step’ products include the internal block diagram (IBD) and parametric diagram
Generated a ‘cheat sheet’ guide for the clients to aid in understanding language and form factor of MBSE deliverables

9. MBSE: Package Diagram

10. MBSE: Block Definition Diagram
The BDD identifies which parameters from which physical objects are likely to be considered within the DSS. To change what parameters are considered, users would need to modify the BDD, IBD, and parametric diagrams to determine how to modify the DSS.

11. Moving Forward
Continue meeting with the customer and explore avenues with which to make advancements in the problem and solution spaces
Develop initial measures of effectiveness (MOE) (DSS outputs)
Get review of initial measures of performance (MOP) and object parameters (DSS inputs)
Deliver MBSE ‘cheat sheet’ to orient clients with expected architecture deliverables
Tool Development:
Continue definition of final tool use/implementation
Develop approach for implementing calculations/logic presented in parametric models (from MBSE)
MBSE:
Develop initial IBD products to enable parametric diagram modeling
Solicit for review/feedback of MBSE data (not necessarily directly on the products) from the client
The most efficient approach seems to be proposing or ‘asserting’ each object’s MOPs and the total system’s MOEs, then pushing those MOPs/MOEs to the client for review.

12. Questions?