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An Introduction to SysML . Finn Overgaard Hansen and Peter Gorm Larsen. Agenda. What is SysML? Relationship between UML and SysML Examples of Extensions Industrial Control Concluding Remarks. What is SysML?.

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An introduction to sysml

An Introduction to SysML

Finn Overgaard Hansen and

Peter Gorm Larsen

An Introduction to SysML


Agenda

Agenda

  • What is SysML?

  • Relationship between UML and SysML

  • Examples of Extensions

  • Industrial Control

  • Concluding Remarks

An Introduction to SysML


What is sysml

What is SysML?

  • A graphical modeling language in response to the UML for Systems Engineering RFP developed by the OMG, INCOSE, and AP233

    • a UML Profile that represents a subset of UML 2 with extensions

  • Supports the specification, analysis, design, verification and validation of systems that include hardware, software, data, personnel, procedures, and facilities

  • Supports model and data interchange via XMI and the evolving AP233 standard (in-process)

SysML is a Critical Enabler for Model Driven SE

An Introduction to SysML


Sysml background

SysML Background

  • UML for System Engineering RFP issued – 28 March 2003

  • SysML Partners Kickoff meeting – 6 May 2003

    • Chaired by S. Friedenthal and C. Kobryn

  • v0.9 Submission to OMG – 10 Jan 2005

    • Addendum stereotypes chapter – 30 May 2005

  • SST and SP split – 30 August 2005

  • SST/SP revised submissions to OMG – 14 November 2005

  • INCOSE and OMG Evaluations – December 2005 thru January 2006

  • SysML Merge Team (SMT) submission v0.99 (ad/2006-02-01) – 13 February 2006

  • SMT formally announced - 15 February 2006

  • OMG Systems Modeling Language (OMG SysML) Specification-Final Adopted Specification ptc/06-05-04 – 6 July 2006 – Final public version planned in April 2007.

An Introduction to SysML


Sysml partners

SysML Partners

  • Industry

    • American Systems, EADS Astrium, BAE SYSTEMS, Boeing, Deere & Company, Eurostep, Israel Aircraft Industries, Lockheed Martin, Motorola, Northrop Grumman, oose.de, Raytheon, THALES

  • Government

    • DoD/OSD, NASA/JPL, NIST

  • Vendors

    • Artisan, Ceira, Gentleware, IBM/Rational, I-Logix, PivotPoint Technology, Popkin, Project Technology, 3SL, Telelogic, Vitech

  • Liaisons

    • AP-233, CCSDS, EAST, INCOSE, Rosetta

An Introduction to SysML


An introduction to sysml

SysML Context

Systems - Operations

Services - Enterprise

Layers

DoDAF

DoD

Architectural

Framework

across

multiple

levels

(Zachman

And MoDAF

are similar)

UPDM

Unified

Modeling

Language

(UML)

Profile

for

DoDAF

and

ModAF

FEA-DEA-BEA

Federal and Defense

Enterprise

Architectures

Enterprise

Architects

SOA

Architecture

based

on

services

SCBA

FEA extension to

Services and

Components

Program

Architects

SysML

UML Extension

for Systems

Engineering

SDF

Service Interface

Descriptions

System

Architects

And

Engineers

MDA

UML Models

For software

Architecture,

Components and

interfaces

Software

Architects

SCA

Component Interface

Description

Developers

Testbeds such as Federated Development and Certification Environment (FDCE)

including Live Systems, Modules, Components ,Services and Simulations

An Introduction to SysML


Sysml specification outline

SysML Specification Outline

  • Part IV – Crosscutting Constructs

    • Allocations

    • Requirements

    • Profiles & Model Libraries

  • Part V Appendices

    • Diagrams

    • Sample Problem

    • Non-Normative Extensions

    • Model Interchange *

    • Requirements Traceability

    • Terms and Definitions *

    • BNF Diagram Syntax Definitions

  • Preface

  • Part I - Introduction

  • Part II – Structural Constructs

    • Model Elements

    • Blocks

    • Ports and Flows

    • Constraint Blocks

  • Part III – Behavioral Constructs

    • Activities

    • Interactions

    • State Machines

    • Use Cases

An Introduction to SysML


Harmony a system engineering development process

Harmony – a System Engineering Development Process

An Introduction to SysML


Agenda1

Agenda

  • What is SysML?

  • Relationship between UML and SysML

  • Examples of Extensions

  • Industrial Control

  • Concluding Remarks

An Introduction to SysML


Relationship between sysml and uml

Relationship Between SysML and UML

UML4SysML

SysML Profile

An Introduction to SysML


Sysml diagram taxonomy

SysML Diagram Taxonomy

An Introduction to SysML


Major extensions to uml 2

Major Extensions to UML 2

  • New Diagram Types

    • Requirement Diagram (visual modeling of requirements)

    • Parametric Diagram (showing relations between parameters)

  • Structure Diagram

    • Block Definition Diagram (based on UML class diagram with blocks instead of classes)

    • Internal Block Diagram (based on UML composite structure diagram with restrictions and extensions)

  • Activity Diagram

    • extensions for continuous flow modeling

    • extensions to support disabling control and control operators.

    • accommodate needs of Extended Functional Flow Block Diagrams (EFFBDs)

An Introduction to SysML


Agenda2

Agenda

  • What is SysML?

  • Relationship between UML and SysML

  • Examples of Extensions

  • Industrial Control

  • Concluding Remarks

An Introduction to SysML


Sysml diagram frames

SysML Diagram Frames

An Introduction to SysML


Blocks are basic structural elements

Blocks are Basic Structural Elements

An Introduction to SysML


Block definition diagram

Block Definition Diagram

An Introduction to SysML


Internal block diagram

Internal Block Diagram

An Introduction to SysML


Internal block diagram example

Internal Block Diagram Example

Control signals

An Introduction to SysML


Requirements diagram new

Requirements Diagram (NEW)

An Introduction to SysML


Parametric diagram new

Parametric Diagram (NEW)

  • Used to express constraints (equations) between value properties

    • Provides support for engineering analysis (e.g., performance, reliability)

  • Constraint block captures equations

    • Expression language can be formal (e.g., MathML, OCL) or informal

    • Computational engine is defined by applicable analysis tool and not by SysML

  • Parametric diagram represents the usage of the constraints in an analysis context

    • Binding of constraint usage to value properties of blocks (e.g., vehicle mass bound to F= m × a)

  • Parametrics Enable Integration of Engineering Analysis with Design Models

An Introduction to SysML


Example defining vehicle dynamics

Example: Defining Vehicle Dynamics

An Introduction to SysML


Example vehicle dynamics analysis parametric diagram

Example: Vehicle DynamicsAnalysis – Parametric Diagram

An Introduction to SysML


Parametric example usage

Parametric Example - Usage

Parametric Diagram

An Introduction to SysML


Activity diagram notation

Activity Diagram Notation

Flows can be discrete, streaming or control

An Introduction to SysML


Sysml effbd profile

SysML EFFBD Profile

An Introduction to SysML


Allocations

Allocations

  • Provides general relationship to map one model element to another

  • Includes specific subclasses of allocation with constraints on their usage

    • Behavioral

    • Structural

    • Flow

  • Explicit allocation of activities to swim lanes (e.g. activity partitions)

  • Graphical and/or tabular representations

An Introduction to SysML


Different allocation representations

Different Allocation Representations

Explicit Allocation of

Activity to Swim Lane

Allocate Relationship

Callout Notation

Compartment Notation

An Introduction to SysML


Example sysml allocation to sw and hw

Example - SysML Allocation to SW and HW

An Introduction to SysML


4 pillars of sysml abs example

interaction

state

machine

activity/

function

use

definition

4 Pillars of SysML ABS Example

1. Structure

2. Behavior

3. Requirements

4. Parametrics

An Introduction to SysML


Cross connecting model elements

allocate

value binding

satisfy

verify

Cross Connecting Model Elements

2. Behavior

1. Structure

3. Requirements

4. Parametrics

An Introduction to SysML


Agenda3

Agenda

  • What is SysML?

  • Relationship between UML and SysML

  • Examples of Extensions

  • Industrial Control

  • Concluding Remarks

An Introduction to SysML


System modeling

System Modeling

An Introduction to SysML


Combining model driven and model based design in industrial machine control

Combining Model-Driven and Model Based Design in Industrial Machine Control

MDD: Model Driven Development

in Rhapsody (Telelogic)

MBD: Model Based Design

in Simulink (Mathworks)

An Introduction to SysML


Mdd versus mbd feature comparison

MDD versus MBD Feature Comparison

An Introduction to SysML


Complementary tool solution

Complementary Tool Solution

  • The Rhapsody MDD environment covers standard UML 2.0 / SysML based software and systems design

  • Simulink is the de-facto standard for dynamic systems modeling

    • allowing block diagrams of complex dynamic (mathematical) algorithms to be captured and analyzed

  • Simulink connection to Rhapsody

An Introduction to SysML


Rhapsody simulink integration 1

Rhapsody – Simulink Integration (1)

An Introduction to SysML


Rhapsody simulink integration 2

Rhapsody – Simulink Integration (2)

Simulink

Model and

Code

Imported

into

Rhapsody

An Introduction to SysML


Agenda4

Agenda

  • What is SysML?

  • Relationship between UML and SysML

  • Examples of Extensions

  • Industrial Control

  • Concluding Remarks

An Introduction to SysML


Concluding remarks

Concluding Remarks

  • SysML contains many interesting extensions of UML

  • It will be good to get a more common language between different disciplines

  • Question is what kind of validation can be made with these different models

    • What about common semantics?

    • What about time connectivity between discrete event an continuous simulators?

An Introduction to SysML


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