1 Application of a Model Based Systems Engineering Method to Manage Project Risk Fred Rojek Booz...

Application of a Model Based Systems Engineering Method to Manage Project Risk

Fred Rojek Booz Allen Hamilton

Advanced Risk Management Seminar Applications to Systems Engineering

November 8–9

Thesis

Application of a Model Based Systems Engineering method can contribute to the implementation of an effective risk management program because…

Agenda

Systems Engineering Objective

Systems Engineering Challenge

Essential Elements of a Model Based Systems Engineering Method

MBSE Application Example

Conclusion

Systems Engineering’s Objective

Translate user operational needs into an efficient and cost-effective system solution

Capture the solution in a complete and coherent* system documentation** needed to design, integrate, test, operate and logistically support a system that fully meets user operational needs

– Specification

– Design

– Test

– Operation

– Support

– Other Supporting Work Products: Trade Studies, Analyses, Technical Reports, Meeting Minutes…

* Coherent: Composed of mutually dependent parts; making a logical whole; consistent; as a coherent plan, argument, or discourse. Webster Dictionary** Also known as work products

Systems Engineering’s Challenge

Capture the solution in a complete and coherent system documentation needed to design, integrate, test, operate and logistically support a system…

User Operational

Needs &Constraints

Concept of Operations Concept of Operations

SystemPerformance

HardwareRequirementsSpecification

SoftwareRequirementsSpecification

Test PlanTest PlanTest

PlanTest Plan

LogisticSupport

System/SegmentDesign

Description

Interface Control

Documents

Interface Control

Documents

StandardOperating Practices

& Procedures

SystemsEngineeringProcesses

DevelopmentSpecificationDevelopmentSpecificationDevelopment

SpecificationDevelopmentSpecificationDevelopment

SpecificationDevelopmentSpecification

Systems Engineering’s Challenge

System requirements, design data, and information relevant to a wide variety of engineering, technical and domain disciplines

– Totality of requirements in the thousands (possibly tens of thousands); Often changing, sometimes well into design

– Dozens (possibly hundreds) of scientists, specialists, engineers, designers, testers, manufacturers…, from multiple & diverse technical disciplines

– Customers, operators, maintainers, suppliers… with great domain expertise, little engineering expertise (and vice versa)

– Should tie together into a unified whole

– Should always be traceable to User Operational Needs

Hundreds to thousands of components employing a wide variety of technologies manufactured throughout the country, possibly the world (ex. International Space Station)

Never ending issues and risks associated at varying development levels that span a wide range of technical and domain expertise

Application of a MBSE Method to Partially Address the Challenge

SystemsEngineeringProcesses

User Operational

Needs &Constraints

Model BasedSystems Engineering

Method

SystemPerformance

PlanTest Plan

LogisticSupport

Description

Interface Control

Documents

Interface Control

Documents

& Procedures

Essential Elements of a MBSE Method

1. Use of models as the central and unifying element to the development of a system*

2. Application across SE processes

3. Application down and up development levels

4. Application throughout system lifecycle

5. Use of computerized SE tools to support the method

* “…model-based [systems] engineering is about elevating models in the engineering process to a central and governing role in the specification, design, integration, validation, and operation of a system.” Estefan, J.A., Survey of Model Based Systems Engineering Methodologies, INCOSE MBSE Focus Group (http://syseng.omg.org/MBSE_Methodology_Survey_RevA.pdf)

1. Models as Central and Unifying Element

Well defined, unambiguous language/notation, understood by all stakeholders, to describe and analyze the system

Multiple system views to fully communicate system requirements and design

– Requirements, Behavioral, Structure, Performance, Data, Managerial…

– Integrated/Traceable; Complimentary; Consistent…non contradictory

Underlying structure (or schema) to define model elements, attributes and relationships – Information Model

Executability

Models are the primary means of communication with clients, builders, and users; models are the language of the architect. The Art of Systems Architecting, Maier, M., Rechtin, E., CRC Press, 2002

OA.1.1.1.1

Produce FDS

OA.1.1.1.2

Request Training(via Request

Field Services)

OA.1.1.1.3

Review FDS

OA.1.1.10.1

Receive andDisposition Waste

AcceptanceRequirements (u...

OA.1.1.10.2

Develop andDisseminate SiteCampaign Plan

(using the Opera...

OA.1.1.10.3

Develop andDisseminate

Annual ShipmentPlan

FinalDelivery ...

FieldServices ...

FDS,Reviewed...

FDS,Finalized/...

SiteCampaign ...

AnnualShipment ...

Schedule

OA.1.1.1.1

Produce FDS

OA.1.1.1.2

Field Services)

OA.1.1.1.3

Review FDS

OA.1.1.10.1

OA.1.1.10.2

(using the Opera...

OA.1.1.10.3

Annual ShipmentPlan

FinalDelivery ...

FieldServices ...

FDS,Reviewed...

FDS,Finalized/...

SiteCampaign ...

AnnualShipment ...

Schedule

documents documents documents documents documents documents documents documents documents

verified by verified by verified by verified by verified by

TransportationRequirements Doc

Document

TransportationSystem (TSRD4)

Component

TSRDCO.4.1

CommunicationEquipment Com...

Requirement

VerificationRequ...

TSRDCO.4.2

CommunicationsEquipment Inde...

Requirement

VerificationRequ...

TSRDCO.4.4

CommunicationsEquipment Reliabi...

Requirement

VerificationRequ...

TSRDF.4.10

Space for ConsistAssembly

Requirement

VerificationRequ...

TSRDF.4.11

TransportationPackage Decon...

Requirement

TSRDF.4.13

Rolling StockDecontamination

Requirement

VerificationRequ...

TSRDF.4.17

Train Assemblyand Disassembly...

Requirement

TSRDF.4.18

Brake SystemSafety Standards

Requirement

documents documents

refined by refined by refined by refined by refined by refined by

WMSRequirements D...

Document

CRD.7.3.2

Command &Control

Requirement

TSRD.4.94

Rail ConsistTracking

Requirement

TSRD.4.135

Truck ConsistTrasking

Requirement

TSRDT.4.1

Rail ConsistCommunications

Requirement

CRD.7.3.3

TransportationRates

Requirement

TSRD.4.7

Special WasteContainer Capabi...

Requirement

TSRDF.4.8

Storage ofContainer Inven...

Requirement

TSRDF.4.9

Storage of RollingStock Inventory

Requirement

Multiple System Views to Communicate Requirements & Design*

Physical Hierarchy(System Structure)

Physical Block Diagram (System Interconnection)

Requirements Hierarchy(System Traceability)

*Views produced by CORE

Verification Requirements

built from built from built from built from built from built from

built from built from built from built from built from built from built from built from built from

TransportationSystem

Component

Sys.1.1

MaintenanceFacility

Component

Sys.1.3

Operation Center

Component

Sys.1.3.1

C2 Equip

Component

Sys.1.3.2

Comm Equip

Component

Sys.1.3.3

Ops Center

Component

Sys.1.4

Containers

Component

Sys.1.4.1

Outer Shell

Component

Sys.1.4.2

Storage Container

Component

Sys.1.4.3

TransportationSkid

Component

Sys.1.5

Rail Equipment

Component

Sys.1.5.1

Container Car

Component

Sys.1.5.2

Crew Car

Component

Sys.1.5.3

Buffer Car

Component

Sys.1.6

Truck Equipment

Component

Sys.1.12

Other SupportSystems

Component

NRC - CRWMS/Transportation/C3

State Authority - CRWMS/Transportation/C3

Commercial Rail Business Ops -- CRWMS/Transportation/C3

FBI - CRWMS/Transportation/C3

Coast Guard - CRWMS/Transportation/C3

Rail Consist - C2, Comm (Primary) NWS - CRWMS/Transportation/C3

Local Authority - CRWMS/Transportation/C3

Truck Consist - C2,Tracking Data (Primary)

Commercial Rail Ops Center -CRWMS/Transportation/C3

Rail Consist - C2, Tracking Data (Primary)

PIO - CRWMS/Transportation/C3

CRWMS/WA - CRWMS/Transportation/C3

Commercial Truck Business Ops -- CRWMS/Transportation/C3

Seciurity Contractor - CRWMS/Transportation/C3

Origin Site - CRWMS/Transportation/C3

CRWMS/MGR - CRWMS/Transportation...

Commercial Truck Ops Center -CRWMS/Transportation/C3

Truck Consist - C2, Comm (Primary)

Transportation Barge - CRWMS/Transportation/C3, Tracking Data

DOE EOC -- CRWMS/Transportation/C3

Cask MaintenanceFacility

Command & Control

TransportationOperations Center

Nevada RailInfrastructure

Transportation Casks(Other than TADTransportation

Overpack, AgingOverpack)

Cask Rail Car

Buffer Rail Car

TAD System

Nuclear RegulatoryCommission (NRC)

External

Local Authority

External

State Authority

External

Federal Authority

External

Tribal Authority

External

Department ofHomeland Security

External

Federal Bureau ofInvestigation (FBI)

External

Public InformationOffice (PIO)

External

National WeatherService (NWS)

External

Origin Site (OS)

External

Ex.12.b

Commercial RailBusiness Operations

External

Ex.14.b

Commercial TruckBusiness Operations

External

Transportation Barge

Coast Guard

External

Security Contractor

External

DOE EmergencyOperations Center

External

Waste Acceptance

Monitored GeologicRepository

Ex.12.a

Commercial RailOperations Center

External

Ex.14.a

Commercial TruckOperations Center

External

Rail Consist

External

Truck Consist

External Operations & Logical/Functional(System Behavior)

OA.1.1.1.1

Produce FDS

OA.1.1.1.2

Field Services)

OA.1.1.1.3

Review FDS

OA.1.1.10.1

OA.1.1.10.2

(using the Opera...

OA.1.1.10.3

Annual ShipmentPlan

FinalDelivery ...

FieldServices ...

FDS,Reviewed...

FDS,Finalized/...

SiteCampaign ...

AnnualShipment ...

Schedule

OA.1.1.1.1

Produce FDS

OA.1.1.1.2

Field Services)

OA.1.1.1.3

Review FDS

OA.1.1.10.1

OA.1.1.10.2

(using the Opera...

OA.1.1.10.3

Annual ShipmentPlan

FinalDelivery ...

FieldServices ...

FDS,Reviewed...

FDS,Finalized/...

SiteCampaign ...

AnnualShipment ...

Schedule

documents documents documents documents documents documents documents documents documents

verified by verified by verified by verified by verified by

TransportationRequirements Doc

Document

TransportationSystem (TSRD4)

Component

TSRDCO.4.1

Requirement

VerificationRequ...

TSRDCO.4.2

Requirement

VerificationRequ...

TSRDCO.4.4

Requirement

VerificationRequ...

TSRDF.4.10

Requirement

VerificationRequ...

TSRDF.4.11

TransportationPackage Decon...

Requirement

TSRDF.4.13

Requirement

VerificationRequ...

TSRDF.4.17

Train Assemblyand Disassembly...

Requirement

TSRDF.4.18

Brake SystemSafety Standards

Requirement

documents documents

refined by refined by refined by refined by refined by refined by

Document

CRD.7.3.2

Command &Control

Requirement

TSRD.4.94

Requirement

TSRD.4.135

Requirement

TSRDT.4.1

Requirement

CRD.7.3.3

TransportationRates

Requirement

TSRD.4.7

Requirement

TSRDF.4.8

Requirement

TSRDF.4.9

Requirement

Integrated!

built from built from built from built from built from built from built from built from built from

Component

Sys.1.1

MaintenanceFacility

Component

Sys.1.3

Operation Center

Component

Sys.1.3.1

C2 Equip

Component

Sys.1.3.2

Comm Equip

Component

Sys.1.3.3

Ops Center

Component

Sys.1.4

Containers

Component

Sys.1.4.1

Outer Shell

Component

Sys.1.4.2

Storage Container

Component

Sys.1.4.3

TransportationSkid

Component

Sys.1.5

Rail Equipment

Component

Sys.1.5.1

Container Car

Component

Sys.1.5.2

Crew Car

Component

Sys.1.5.3

Buffer Car

Component

Sys.1.6

Truck Equipment

Component

Sys.1.12

Component

Command & Control

Cask Rail Car

Buffer Rail Car

TAD System

External

Local Authority

External

State Authority

External

Federal Authority

External

Tribal Authority

External

Origin Site (OS)

External

Ex.12.b

External

Ex.14.b

External

Coast Guard

External

Security Contractor

External

Waste Acceptance

Ex.12.a

External

Ex.14.a

External

Rail Consist

External

Truck Consist

External

allocated to

functional I/O implemented by

trace to

verified by

Additional Views used as required to communicate other relevant system characteristics

Information Model Example*

* Partial View of CORE Schema

causes

Organization

assigned to

ProgramActivity

resolved by

Document

documented by

causescauses

basisof

performedby

Component

built from

Interface

joinedto

Function

decomposedby

Requirement

refined by

causes

results in results in

VerificationRequirement

verified by

causes

VerificationEvent

fulfilled by

Information Model Example*

* Partial View of CORE Schema

generates

Organization

assigned to

ProgramActivity

resolved by

Document

documented by

generatesgenerates

basisof

performedby

Component

built from

Interface

joinedto

Function

decomposedby

Requirement

refined by

generates

VerificationRequirement

verified by

generates

VerificationEvent

fulfilled by

results in results in

* Trade-off Studies, Risk Management, Interface Management, Configuration Management…

2. Application Across SE Processes

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

RequirementsAnalysis

FunctionalAnalysis

Design/Synthesis

Assessment

Systems Engineering Process ModelSystemPerformanceSpecification

orDevelopmentSpecification

SystemPerformanceSpecification

System Analysis & Control*

To Next Development

ContractorStatement of

Safety AnalysisHuman FactorsRAM AnalysisLogistic AnalysisEMI Analysis…

3. Application Down & Up Development Phases

position & D

esign Inte

SystemPerformance

SystemDesign

ProductDesign

SubsystemDesign

ComponentDesign

HW Fab &Assembly; SW Code

Part & CSU Verification

ComponentIntegration &Verification

SubsystemIntegration &Verification

ProductIntegration &Verification

SystemIntegration &Verification

ProductDevelopmentSpecifications

ProductDevelopmentSpecificationsProduct

DevelopmentSpecifications

SubsystemDevelopmentSpecifications

Verification Results

VerificationRequirements

VerificationResults

Verification

Results

ConceptOperational

Validation Requirements

Validation Results

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Systems Engineering Process Model

SRDSRDConcept of Operations Concept of Operations

4. Application Throughout Acquisition Lifecycle

ConceptRefinement

Prod 3Prod 2Prod 1

AdvancedDevelopment

Engineering Design

Integration &Evaluation

ProductionOperation & Support

Increasing Model Complexity

Prod 3Prod 2Prod 1

Subsys 3.1Subsys 1.2Subsys 1.1 Subsys 3.2

Prod 3Prod 2Prod 1

Subsys 3.1Subsys 1.2Subsys 1.1 Subsys 3.2

Comp 3.1.1Comp 1.1.2Comp 1.1.1 Comp 3.1.2

……

Prod 3Prod 2Prod 1

Subsys 3.1Subsys 1.2 Subsys 3.2

Comp 3.1.1Comp 1.1.2 Comp 3.1.2.a

Comp 3.1.3

Subsys 1.1

Comp 1.1.1

System Development History Maintained

Accumulated System Data & Information

(History)

ConceptRefinement

AdvancedDevelopment

Engineering Design

Integration &Evaluation

ProductionOperation & Support

Prod 3Prod 2Prod 1

Subsys 3.1Subsys 1.2 Subsys 3.2

Comp 3.1.1Comp 1.1.2 Comp 3.1.2.a

Comp 3.1.3

Subsys 1.1

Comp 1.1.1

5. Use of Computerized SE Tools to Support the MBSE Method

Modeling

– Support the modeling language and schema; produce the needed system views

– Maintain horizontal and vertical traceability

Data Management

– Single, central repository to manage all related system data and information

Document Generation

– Automated generation of formal documentation & work products (drawn from central model repository)

System/Segment Specification (SSS); Interface Requirements Specification (IRS); Test & Evaluation Plan (TEP); Software Requirements Specification (SRS)...

Integral to the SE Environment to support the MBSE method

See Survey of Model Based Systems Engineering Methodologies (http://syseng.omg.org/MBSE_Methodology_Survey_RevA.pdf) for a discussion of commercial tools available that could be used to support MBSE method application

MBSE Application Example

Waste Management System (WMS)

System Mission* - Accept, transport, & dispose of hazardous material in a manner that protects health, safety and the environment; and merits public confidence

System Concept

Interface between Waste Production Sites

& Disposal System

Receive and dispose of hazardous material

Transport hazardous material from Waste Generation Sites to Disposal System

WasteAcceptance

System

DisposalSystem

*Documented in WMS Requirements Document

WMS Concept of Operations

Maintenance Facility

DisposalSystem

WasteGeneration

OperationsCenter

Unloaded waste containers

Loaded waste containers

Unloaded waste containers*

Equipment flow

Information flow

*Transportation modes include rail, truck, barge; possibly a combination of all three depending upon OS location

Transportation SystemConcept Model Maintenance

Facility

DisposalFacility Ops

WasteGenerationSite Ops

OperationsCenter

ExistingInfrastructure

utilizes

maintains

coordinates/controls

xports loadedcontainers to

stores

generates

coordinates/controls

Transportation System Components

DisposalFacility

xports unloaded containers to

WasteGeneration

Waste Container

Rail or TruckEquipment

Transport Equip

carries

contains

WMS Transportation System Development Phase

position & D

esign Inte

SystemPerformance

SystemDesign

ProductDesign

SubsystemDesign

ComponentDesign

HW Fab &Assembly;SW Code

Part & CSUVerification

ComponentIntegration &Verification

SubsystemIntegration &Verification

ProductIntegration &Verification

SystemIntegration &Verification

SubsystemDevelopmentSpecifications

SoftwareRequirementsSpecificationSoftware

RequirementsSpecification

VerificationResults

ConceptOperational

Validation Requirements

Validation ResultsSRDSRD

System Model Views

* All views produced by the CORE SE Tool

System Requirements (sample)

The system shall be capable of:

– Accepting and receiving 400 tons of waste in 1st year of operations

– Accepting and receiving 3800 tons in 2nd year of operations

– …

Shall be capable of accommodating a range of waste storage and transportation technologies

Shall comply with the applicable provisions of:

– Legislation

– Code of Federal Regulations (CFR)

– EPA Standards

– DoT Regulations

– Association of American Railroads (AAR) Regs

– …

documents documents

refined by refined by refined by refined by refined by refined by refined by refined by refined by

Document

CRD.7.3.3

TransportationRates

Requirement

TSRD.4.7

Requirement

TSRDF.4.8

Requirement

TSRDF.4.9

Requirement

TSRDN.4.32

EOL Storage ofRolling Stock

Requirement

TSRDS.4.2

SNF and HLWTransportation ...

Requirement

CRD.7.3.2

Command &Control

Requirement

TSRD.4.94

Requirement

TSRD.4.135

Requirement

TSRDT.4.1

Requirement

TSRDT.4.4

Truck ConsistCommunications

Requirement

Requirements Model Development

“The WMS shall be capable of receiving waste, mostly by rail, at the system operating conditions and receipt rates specified in…”

The Transportation System shall have the capability to store (TBD)% of the waste container inventory.

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Systems Engineering Process

“The WMS shall comply with the waste material transportation practices documented in the …”

The Transportation System shall have the capability to store (TBD)% of the rolling stock inventory.

The Transportation System shall be capable of voice communications with rail consists at all times throughout shipment operations.

System Behavior ModelDevelopment

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

OA.1Perform

Operations

Perform WasteAcceptanceOperations

Perform DisposalFacility

Operations

Perform WasteGeneration Site

Activity

C.2Perform

Commercial RailOperations

Center Activity

C.3Perform

Commercial TruckOperations

Center Activity

Perform RailConsist Activity

Perform TruckConsist Activity

Perform CoastGuard Activity

Perform StateAuthority Activity

Transportation System Functional Context Diagram

OA.1Perform

Operations

Activity

C.2Perform

Commercial RailOperations

Center Activity

C.3Perform

Commercial TruckOperations

Center Activity

Transportation System Functional Context Diagram

System Behavior ModelDevelopment – Decomposition

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Retire System

Continue Operation

Continue Annual Waste Shipment

OA.1.1

DevelopTransportation

System

OA.1.2

ProduceTransportation

System

OA.1.3

DeployTransportation

System

OA.1.4Operate &Maintain

OA.1.5

SupportTransportation

System

OA.1.7

RetireTransportation

System

Perform Transportation System Operations

OA.1.4.3

Assemble &Dispatch Consist

OA.1.4.4

Transport EmptyContainers to Site

OA.1.4.5

Handle & LoadContainers at Site

OA.1.4.6Transport Loaded

Containers toDisposal Facility

OA.1.4.7

Retrieve UnloadedContainers from

Facility [6.0]

OA.1.4.8

Return RollingStock & Aux

Equipment [7.0]

OA.1.4.9ReassembleContainers &Equipment &

Prepare for Next...

OA.1.4.1

PerformCommand &

Control

OA.1.4.2

Perform DailyPlanning &

Management

Operate & Maintain Transportation System

System Behavior ModelDevelopment – Functional I/O

Functional I/O Includes Data, Information, Material

PerformTransportation

SystemOperations

Operations

Activity

PerformCommercial Rail

Operations CenterActivity

PerformCommercial

Truck OperationsCenter Activity

Empty Containers

LoadedContainers

DeliveryRequirements

Comm Rail OpsCenter C2 Messa...

Comm Truck OpsCenter C2 Messa...

PreparedContainers

7 Day AdvanceNotification of Sh...

Rail ConsistLocation

Truck ConsistLocation

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Physical Model Development

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Transportation System Physical Context Diagram

built from built from built from built from built from built from built from built from

WasteManagement Sy...

System of Syst...

WasteGeneration Sites

External System

Truck Consist

External System

Rail Consist

External System

Comm Truck OpsCenter

External System

Comm Rail OpsCenter

External System

System

WasteAcceptance

External System

Disposal Facility

External System

Physical Model Development

Transportation System Physical Hierarchy

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

System

Sys.1.1

MaintenanceFacility

Subsystem

Sys.1.3

Operation Center

Subsystem

Sys.1.4

Containers

Subsystem

Sys.1.5

Rail Equipment

Subsystem

Sys.1.6

Truck Equipment

Subsystem

Sys.1.12

Subsystem

performs performs performs performs

Component

Sys.1.1

MaintenanceFacility

Component

Sys.1.3

Operation Center

Component

f.1.4.3.1

Communicatewith Rail Consist

Function

f.1.4.3.2

Communicatewith Truck Consist

Function

f.1.4.3.3

Track Rail Consist

Function

f.1.4.3.4

Track Truk Consist

Function

Sys.1.4

Containers

Component

Sys.1.5

Rail Equipment

Component

Sys.1.6

Truck Equipment

Component

Sys.1.12

Component

Functional Allocation

Functions from Behavior Model Allocated to the Operations Center Subsystem

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

SubsystemSubsystemSubsystemSubsystemSubsystemSubsystem

performs performs performs performs

based on based on based on based on

Component

Sys.1.1

MaintenanceFacility

Component

Sys.1.3

Operation Center

Component

f.1.4.3.1

Communicatewith Rail Consist

Function

TSRDT.4.1

Requirement

f.1.4.3.2

Communicatewith Truck Consist

Function

TSRDT.4.4

Truck ConsistCommunications

Requirement

f.1.4.3.3

Track Rail Consist

Function

TSRD.4.94

Requirement

f.1.4.3.4

Track Truk Consist

Function

TSRD.4.135

Truck ConsistTracking

Requirement

Sys.1.4

Containers

Component

Sys.1.5

Rail Equipment

Component

Sys.1.6

Truck Equipment

Component

Sys.1.12

ComponentSubsystemSubsystemSubsystemSubsystemSubsystemSubsystem

Requirements Traceability

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Requirements from Requirements Model Trace to Operations Center Functions

Structural Model Development – Interconnection Diagram

Functional I/O Items from Behavior Model Transferred by Interface Links

Command & Control

Cask Rail Car

Buffer Rail Car

TAD System

External

Local Authority

External

State Authority

External

Federal Authority

External

Tribal Authority

External

Origin Site (OS)

External

Ex.12.b

External

Ex.14.b

External

Coast Guard

External

Security Contractor

External

Waste Acceptance

Ex.12.a

External

Ex.14.a

External

Rail Consist

External

Truck Consist

External

Operations Center

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Systems Engineering Process Model

System Specification

*Document generated by Computerized SE tool (CORE), drawing data from Central Repository

SYSTEM SPECIFICATION

FOR THE

Transportation System

Prepared For:

Prepared By:

1 Scope 1

1.1 Identification.................................................................................................................................1 1.2 System Overview..........................................................................................................................1 1.3 Document Overview .....................................................................................................................1

2 Applicable Documents 2

2.1 Government Documents ...............................................................................................................2 2.2 Non-Government Documents .......................................................................................................2

3 System Requirements 3

3.1 Definition......................................................................................................................................3 3.2 Characteristics...............................................................................................................................5

3.2.1 Performance Characteristics...............................................................................................5 3.2.2 System Capability Relationships........................................................................................5 3.2.3 External Interface Requirements ........................................................................................5 3.2.4 Physical Characteristics .....................................................................................................6 3.2.5 System Quality Factors ......................................................................................................6 3.2.5.1 Reliability........................................................................................................................7 3.2.5.2 Maintainability ................................................................................................................7 3.2.5.3 Availability .....................................................................................................................7 3.2.5.4 Additional Quality Factors ..............................................................................................7 3.2.6 Environmental Conditions .................................................................................................7 3.2.7 Transportability..................................................................................................................8 3.2.8 Flexibility and Expansion ..................................................................................................8 3.2.9 Portability ..........................................................................................................................8

3.3 Design and Construction ...............................................................................................................8 3.3.1 Materials ............................................................................................................................8 3.3.2 Electromagnetic Radiation .................................................................................................8 3.3.3 Nameplates and Product Marking ......................................................................................8 3.3.4 Workmanship.....................................................................................................................8 3.3.5 Interchangeability ..............................................................................................................8 3.3.6 Safety .................................................................................................................................8

3.3.6 Safety .................................................................................................................................8 3.3.7 Human Engineering .........................................................................................................10 3.3.8 Nuclear Control................................................................................................................10 3.3.9 System Security ...............................................................................................................10 3.3.10 Government Furnished Property Usage .........................................................................11 3.3.11 Computer Resource Reserve Capacity ...........................................................................11

3.4 Documentation............................................................................................................................11 3.5 Logistics......................................................................................................................................11 3.6 Personnel and Training ...............................................................................................................12

3.6.1 Personnel..........................................................................................................................13 3.6.2 Training............................................................................................................................13

3.7 Characteristics of Subordinate Elements .....................................................................................13 3.8 Precedence ..................................................................................................................................14 3.9 Qualification ...............................................................................................................................14 3.10 Standard Sample .......................................................................................................................14 3.11 Preproduction Sample, Periodic Production Sample, Pilot, or Pilot Lot ...................................14

4 Quality Assurance Provisions 15

4.1 Responsibility for Inspection ......................................................................................................15 4.2 Special Tests and Examinations ..................................................................................................15 4.3 Requirements Cross Reference ...................................................................................................15

5 Preparation for Delivery 16

6 Notes 17

6.1 Intended Use ...............................................................................................................................17 6.1.1 Missions ...........................................................................................................................17 6.1.2 Threat ...............................................................................................................................17

6.2 Acronyms and Abbreviations......................................................................................................17 6.3 Glossary ......................................................................................................................................17

10 Appendix A - Requirements Traceability Matrix 18

20 Appendix B - Behavior Diagrams 21

RequirementsModels

BehavioralModels

PhysicalModels

AssessmentResults

FunctionalAnalysis

Design/Synthesis

Assessment

Systems Engineering Process ModelSystem

PerformanceSpecification

System Performance Specification Documents Requirements*

Conclusion

Application of a Model Based Systems Engineering methodology can contribute to the implementation of an effective Risk Management program because:

– Models can effectively communicate system requirements and design detail to all disciplines, at all system levels; Simultaneously accessible to all team members (IPTs, special study groups, analysis teams, etc.) (identification)

Executable models allow analysis of system behavior (assessment and analysis)

– Risk documentation products - identified risks, assessment results, mitigation plans etc. – can become an integral part of the system models, maintained in central repository (management)

– Risk documentation products can be automatically generated from tools supporting SE environment drawing model data from central repository (management)

MBSE methodology allows Risk Management to become an integral part of the overall system development effort, throughout all development phases/levels, throughout the system lifecycle (management)

Questions

Backup

Other Model Based Initiatives (you may have heard of)

Model Driven Engineering (MDE)

Model Driven Architecture (MDA)1,2

Model Driven Development (MDD)1,2

Model Based Application Development1

Model Based Programming1

Object Oriented Systems Engineering Method (OOSEM) using SySML1

Rational Unified Process for Systems Engineering (RUP SE)3

1. Object Management Group (OMG) trademarks (http://www.omg.org/legal/tm_list.htm)

2. MDA & MDD are actually implementations of MDE

3. IBM Rational trademark

How do these differ from MBSE?or MBE or MDSD

1 Application of a Model Based Systems Engineering Method to Manage Project Risk Fred Rojek Booz...

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