MBSE with GENESYS 073122

Why Do Systems Engineering: The Financial Case

• Cope with complexity • Avoid omissions • Avoid invalid assumptions • Make informed, defensible decisions • Manage change • Design most efficient, economic, and robust solution • Achieve greater design control

Method 1 —

Method 2 —

Method 3 —

Hypothetical Project

Total Costs

Top-Down

Breakdown

Project Phase

Bottom-Up Cost

Requirements

1 x

1 x

1 x

Design

8 x

3 - 4 x

4 x

Build

16 x

13 - 16 x

7 x

Test

21 x

61 - 78 x

28 x

Operations 29 x 157 - 186 x 1615 x Source: Error cost escalation through the project life cycle - NASA Johnson Space Center

It is not hard to know when system engineering fails, because when something important goes wrong it usually makes the news fast. INCOSE

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Enabling Project Success: The Motivation for SE

✓ Understanding the problem

✓ Integrating the team

✓ Defining the seams

✓ Addressing the gaps

✓ Guarding the why

Image Credit: Defense Acquisition University

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MBSE with GENESYS