NASA AAM Mission MBSE Approach20 Oct 2020

1

AAM Mission Critical Commitment

Community Integration Create robust implementation strategies that provide significant public benefits and catalyze public acceptance, local regulation, infrastructure development, insurance and legal frameworks, etc.

Vehicle Development and Operations Develop concepts and technologies to define requirements and standards addressing key challenges such as safety, affordability, passenger acceptability, noise, automation, etc.

Airspace Design and Operations Develop UTM-inspired concepts and technologies to define requirements and standards addressing key challenges such as safety, access, scalability, efficiency, predictability, etc.

Achieving “systems and architecture requirements” will require enabling activities such as 1) the AAM National Campaign Series 2) a robust Ecosystem Partnership model and 3) NASA ARMD Portfolio Execution.

Critical Commitment:

Based on validated operational concepts, simulations, analyses, and results from National Campaign demonstrations, the AAM Mission will deliver aircraft, airspace, and infrastructure system and architecture requirements to enable sustainable and scalable medium density advanced air mobility operations

2

• Traditional SE focuses on production of many various documents:– Between documents it has become increasingly difficult to

assess completeness of information

– Difficult (if not impossible) to perform traceability

– Painful to perform impact analysis

• MBSE produces artifacts as elements in a model repository:– Traceability becomes native by relating elements to one

another.

– Because traceability increases, so does the ease of performing impact analyses.

– Because requirements, design, verification, and validation are done in the model, it provides a more complete and correct system design.

• Digital Engineering:– Traceability/Synchronization of data amongst all tools in an

enterprise

– E.g. Microsoft Project DOORS MagicDraw MATLAB

Traditional SE vs MBSE vs Digital Engineering

5

Why is NASA using MBSE?

6

Model Based Systems Engineering (MBSE) is the “utilization of dynamic models to complete standard systems engineering tasks in order to visually represent system functionality and hierarchy”

NASA’s Goal: To enable the AAM Mission Critical Commitment by capturing, organizing, tracing, analyzing and validating representative UAM system architectures and requirements

Objectives:• Develop a centralized information database accessible by the AAM Ecosystem• Improve ability to manage a very large and highly complex set of system concepts, architectures & reqmts• Build a comprehensive representative UAM System Architecture structure• Capture the necessary data and requirements that define the UAM System Architecture• Validate the UAM System Architecture using research and test data• Identify gaps in existing standards, regulations, and policies• Improve communications and interoperability across the AAM Ecosystem• Enable reusability of system elements that can be leveraged by other NASA Projects and external Stakeholders• Enable scalable solutions to the problem

Basic AAM Model Structure

7

AAM

Vehicle Airspace InfrastructureDecompose Concept of Operations into

System of Systems for MBSE Implementation

NASA research, development, test, and validation

Eco

syst

em

Co

ntr

ibu

tio

ns

System and Architecture Requirements Development

8

Simulation and Flight Test Data & Evidence

Candidate UAM System Concepts & Architectures

Common Dictionary / Taxonomy

ConOps and Use Cases

SystemRequirements

System Architectures

Guidance Material

Applicable Standards & Regulations

Critical Commitment Deliverables

Common Dictionary / Taxonomy

Vision & Guiding Principles

Rel

eva

nt

Da

ta

Exch

an

ges

Collaborating with other federal/state/local governments and industry organizations across the AAM Ecosystem to develop a comprehensive set of AAM UML-4 system and architecture requirements.

Key Participants CY 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030

AAM Reference Framework Contributions

9

Iterative development and maturation of the AAM Reference Framework enabled by AAM Research Activities and the National Campaign; leading to AAM Regulatory, Technical and Community Advancements.

AAM Reference FrameworkEnabled by MBSE

AAM Ecosystem AdvancementsRules & Regulations

Policies & Procedures Industry Standards

Guidance Material

Requirements

Laws & Ordinances

Gap Analysis

System Concepts

Enabling Technologies

NASA,

Academia,

Industry

FAA, NASA, DOD,

Federal/State/Local

Govt, Industry,

Ecosystem WG,

Academia,

Standards Orgs

NASA AAM

Mission

Integration

Office

NASA ARMD AAM Research

NASA AAM, FAA,

Industry (Vehicle

& Airspace)NC-DT

NC-1 NC-2 NC-3 NC-4

Prototype

Reference

Framework

CC

Reference

Framework

Reference

Framework

Reference

Framework

Partner Interaction

Interim Releases Gap Analyses

ConOpsContent

Architecture Requirements

Test Data

Candidate Standards and Regulations

To Partners

From Partners

• Inputs from Partners– Concepts and Guiding Materials

– Candidate Standards and Regulations

– System and Architecture Requirements

– Test Data

• Output to Partners – Interim Releases of the Model

– AAM Barrier and Gap Analyses

– UAM State-of-the-Art Assessments

• Meetings and other Interactions– AAM Ecosystem Working Groups

– “Open Source” Access to Model

– Model Requirements Reviews

– Model Design Reviews

SoAAssessment

Next Steps

• Release of Urban Air Mobility UML-4 ConOps for further inputs– Mid-November

– Follow-on ConOps table-top walk throughs

– Release of UML-4 ConOps version 2 (Spring/Summer 2021)

• AAM Ecosystem Working Group meetings– Concept of Operations reviews

– Model Requirements and Design Review (Spring/Summer 2021)

– Outcomes of discussions within other AAM Ecosystem Working Groups

• Announcement of Collaborative Opportunities (Winter 2021)– Subject Matter Experts to review and augment Concept and System content in our model

• Initial release of the Model (2021)