Model-based systems engineering is everywhere - everyone talks about it, everyone wants to use it, but what is actually behind it? This question will be outlined by means of a playful approach and a real problem: "I pack my suitcase and take with me...". Based on this problem, we will successively use the game to pack the suitcase with the help of SE and finally MBSE and present it by means of a small demonstration. Let's go together on the hopefully soon journey and pack our suitcase.

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I pack my suitcase and take with me…

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6. Model-Based Systems Engineering –
“How to pack my suitcase right?”
Susan Faust
PreSales Solution Consultant Polarion (ALM)
susan.faust@siemens.com
+49 (0) 174 2038 991
Dr. Chantal Sinnwell
Solution Architect (MBSE & MBPE)
chantal.sinnwell@siemens.com
+49 (0) 172 6927 550

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Let’s imagine we see our suitcase also as a system…
Travel System as a Black Box influenced by different external factors
Travel System

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Travel System as a White Box with different sub systems
Let’s focus on the travel type
Travel System
Hand luggage Suitcase

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The selected travel type has different system requirements for the luggage
Travel System
Hand luggage Suitcase
System Requirements: Height 55 cm
System Requirements: Length 40 cm
System Requirements: Width 23 cm
System Requirements: Height 70 cm
System Requirements: Length 50 cm
System Requirements: Width 30 cm
System Requirements: Weight 8 kg System Requirements: Weight 16 kg

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Based on our travel system we have specific needs – stakeholder requirements
Suitcase
Dividers Hidden
laundry bag
Colour:
Green
Stakeholder Requirements

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What’s in it for me?
Identifying possible risks, nonconformances, …
Travel System
Regulations Weight Dimensions

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What’s in it for me?
Adapt your stakeholder requirements based on feasible system artefacts & variability
Travel System

13. How to approach step by step this MBSE journey?
Four Phases of System Development based on the RFLP Approach
1) Operational Analysis
2) System Analysis
3) Logical Architecture
4) Physical Architecture
Requirements
Functions
Physics
Logic
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14. How to approach step by step?
Phase 1: What is the black box system about?
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15. Phase 1: Operational Analysis
Black-Box-Perspective to specify system context

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Phase 1: Operational Analysis
Structuring and preparing the Requirements

17. How to approach step by step?
Phase 1: What is the black box system about?
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18. How to approach step by step this MBSE journey?
Phase 2: From Black Box to White Box
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19. Phase 2: System Analysis
White-Box-perspective with exact knowledge of system boundary to specify context functions

20. Phase 2: System Analysis
White-Box-perspective with exact knowledge of system boundary and mapped requirements

21. Phase 2: System Analysis
White-Box-perspective with exact knowledge of system boundary and mapped requirements

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Phase 2: System Analysis
White-Box-perspective of system to specify system functions: general system behavior
Same steps in
travel preparation
for every travel
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Phase 2: System Analysis
White-Box-perspective of system to specify system functions: context-related system behavior
One function
for each of
our travel
activites and
for everyday
stuff

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Phase 2: System Analysis
White-Box-perspective of system to specify system functions: detailed system behavior
Purposes of
to be
packed stuff,
divided by
travel
activity
Purposes of
to be
packed stuff,
divided by
travel
activity
Purposes of
to be
packed stuff,
divided by
travel
activity

25. How to approach step by step this MBSE journey?
Phase 2: From Black Box to White Box
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26. How to approach step by step this MBSE journey?
Phase 3: Map System Purpose with System Items
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27. Phase 3: Logical Architecture
Function-based structure decomposition to map general functions to logical solution components

28. Phase 3: Logical Architecture
Function-based structure decomposition to map detailed functions to logical solution components
!

29. Phase 3: Logical Architecture
Function-based structure decomposition without obvious violation of luggage restrictions

30. How to approach step by step this MBSE journey?
Phase 3: Map System Purpose with System Items
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31. How to approach step by step this MBSE journey?
Phase 4: What is the physic of your suitcase?
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32. Phase 4: Physical Architecture
Physics-based structure decomposition to specify general physical components and function fulfillment

33. Phase 4: Physical Architecture
Physics-based structure decomposition to specify detailed physical components and function fulfillment

34. Phase 4: Physical Architecture
Physics-based structure decomposition without violation of weight restrictions

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Four Phases of System Development
1) Operational Analysis
2) System Analysis
3) Logical Architecture
4) Physical Architecture

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Outlook: What’s in it for me?
Adapt your system approaches for different holidays
Travel System for summer holidays

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Outlook: What’s in it for me?
Adapt your system approaches for different holidays
Travel System for winter holidays

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Outlook
Reuse your specific system approaches for upcoming holidays

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Nutzung und Wiederverwendung von Normen
Disclaimer: All models have been created by Siemens

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Susan Faust
PreSales Solution Consultant Polarion
susan.faust@siemens.com
+49 (0) 174 2038 991
Dr. Chantal Sinnwell
Solution Architect (MBSE & MBPE)
chantal.sinnwell@siemens.com
+49 (0) 172 6927 550