Genesys Training Manual

Why Do Systems Engineering

• Cope with Complexity • Avoid Omissions • Avoid Invalid Assumptions • Manage Change • Design most efficient, economic, and robust solution • Greater design control

Hypothetical Project

Method 2 — Total Costs

Method 3 — Top-Down

Breakdown

Method 1 —

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

15

Why Do Systems Engineering

• Cope with complexity • Avoid omissions • Avoid invalid assumptions • Manage change • Design most efficient, economic, and robust solution • Greater design control

Life-cycle cost commitment. SOURCE: INCOSE Systems Engineering Handbook Version 3, June 2006.

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

16

MBSE with GENESYS

8