Beginners Guide to Model-Based Systems Engineering

12/18/2018

How Do You Know When You Are Done?

Process Elements

Completion Criteria

1. Originating

1. Agreement on Acceptance Criteria

Requirements

2. Behavior Definition 3. Architecture Definition

2. Each function can be allocated to at most one component 3. Segment/component specs are complete per requirements documents 4. V&V requirements have been traced to test system components

4. Qualification

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One Conceptual Progression of SE Representations

0. Define Need & System Concept

Physical Diagram

Interface Diagram

1. Capture & Analyze Orig. Requirements 2. Define System Boundary

RqmtsDiagram/ Table

Functional Diagram

Requirement Diagram

InterfaceBlockDiagram

Cross-cuttingView

3. Capture Originating

Architecture Constraints

Use Case

4. Derive System Threads

SequenceDiagram/ EFFBD

5. Derive Integrated System Behavior

EFFBD / ActivityDiagram

6. Derive Component Hierarchy

BlockDefinitionDiagram

7. Allocate Behavior to Components

N2 Diagram

8. Define Internal Interfaces

InternalBlockDiagram

9. Select Design

TraceabilityHierarchy

10. Perform Effectiveness & Feasibility Analyses

ConstraintBDD / ParametricDiagram

11. Define Resources, Error Detection, & Recovery Behavior

EFFBD / ActivityDiagram

12. Develop Validation Requirements/Validation Plans

VCRM,EFFBD / ActivityDiagram

13. Generate Documentation and Specifications

SRS, IRS, SSS, workingdocuments,and more

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