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The webinar will begin shortly
WEBINAR
LML to SysML and Back
A Look into the Lifecycle Modeling Language and System Modeling Language
InteractwithUs
LML to SysML and Back
LinkedIn Group:
Innoslate Users
@innoslate
PresenterProfile
LML to SysML and Back
Steven H. Dam, Ph.D., ESEP
President and Founder
steven.dam@specinnovations.com
Expert Systems Engineering
Professionals Certificate
Participated in the development of
LML
OurAgenda
1
LML to SysML and Back
2
3
4
5
6
The Basics of LML
The Basics of SysML
The Benefits of SysML
Demonstration: Implementation of LML and SysML
Questions and Answers
The Benefits of LML
WEBINAR
“It is common practice for systems engineers to
use a wide range of modeling languages, tools,
and techniques on large systems projects”
SysML specification
WEBINAR
The Basics of LML
LML to SysML and Back
1. To be easy to understand
2. To be easy to extend
3. To support both functional and object oriented approaches within the
same design
4. To be a language that can be understood by most system stakeholders,
not just Systems Engineers
5. To support systems from cradle to grave
6. To support both evolutionary and revolutionary changes to system plans
and designs over the lifetime of a system [1]
6 Goals of LML
LML to SysML and Back
• ERA form the meta-meta model for the language elements
• An entity is something that can exist by itself and is uniquely identifiable.
LML has defined 12 parent entities (Action, Artifact, Asset, Characteristic,
Connection, Cost, Decision, Input/Output, Location, Risk, Statement and
Time) [Noun]
• A relationship connects entities to each other.
• e.g. decomposed by/decomposes, traced to/traced from
• An attribute is an inherent characteristic or quality of an entity or
relationship
• An attribute can be of an entity [Adjective] or relationship [Adverb]
Entity, Relationship, Attribute (ERA)
LML to SysML and Back
In this example, the “trigger” attribute on the receives/received by relationship
determines if the Action must wait to execute until it receives the Input/Output
element
Attributes on Relationships
trigger
LML to SysML and Back
• Entity names were chosen to
provide a clear, easy to
understand general “bin” for
information
• Example: Action vs. Function or
Activity
• Child entities have unique
attributes and/or relationships
• Example: Measure vs. Characteristic
• Child entities inherit attributes and
relationships from parents
LML Entities
LML to SysML and Back
• Many discussions about
keeping “Orbital” as part of
the language
• Has important different
attributes and relationships
• Key to a major part of the SE
community (space)
• Requirements contain quality
attributes
LML Entities
LML to SysML and Back
• Key relationships for
traceability
• These represent a
subset of all the
relationship
• See specification for
complete set of
relationships
• Note all parent/child
relationships the same
for each entity class
Traceability
LML to SysML and Back
• Note how LML
covers all the
different pieces of
information in
these domains
• Entity classes for
other domains can
be added as
extensions
LML Ontology Mapping to Domains
LML to SysML and Back
• 3 Mandatory Diagrams
• Action for functional modeling
• Asset for physical modeling
• Spider for traceability
• Suggested diagrams for all
classes based on common
visualizations of the
information (e.g. Risk Matrix
for Risks)
Diagrams
LML to SysML and Back
• All extensions must be
submitted to the LML
Steering Committee for
adjudication before they
will be recognized as
official extensions to
LML
• Version 1.1 added
entities, attributes and
relationships for SysML
support
Extensions
LML to SysML and Back
• Actual instantiation of the LML
specification will be up to tool
vendors
• Innoslate instantiates LML
completely
• Type attributes are labels
• Includes diagrams for every class
• Could fairly easily be used by any
tools that enable schema
extension
• However, adding diagrams might be
difficult for users to add – tool
vendors would have to add them
Instantiation
WEBINAR
The Basics of SysML
LML to SysML and Back
• SysML is a “profile” of UML
(i.e. it extends UML)
• Consists of a set of diagrams
• No ontology explicitly (at
this time)
• Compliance with SysML
requires that the subset of
UML required for SysML is
implemented, and that the
SysML extensions to this
subset are implemented
Language Architecture
LML to SysML and Back
• SysML is specified using a
combination of UML modeling
techniques and precise natural
language to balance rigor and
understandability
• “Use of more formal constraints and
semantics may be applied in future
versions to further increase the
precision of the language”
• Consists of nine (9) diagrams
Language Formalism
LML to SysML and Back
4 Pillars of SysML
1. Structure
definition use
interaction
state
machine
activity/
function
2. Behavior
3. Requirements 4. Parametrics
From: Object Management Group.
WEBINAR
The Benefits of SysML
LML to SysML and Back
• Linkage to UML for software-centric systems
• Specific diagrams defined across a number of SE areas
• Requirements Diagram
• Parametric Diagram
• SysML has encouraged model-based SE
Benefits of SysML
WEBINAR
The Benefits of LML
LML to SysML and Back
• Broad
• Ontology-based (enables translation from LML to SysML and back)
• All the capabilities of SysML (with v1.1 extensions)
• Simple structure
• Useful for stakeholders across the entire lifecycle
Benefits of LML
LML to SysML and Back
Questions and Answers:
Enter Your Question in the GoToWebinar Control Panel
LML to SysML and Back
WEBINAR
Next Webinar
Time to Build Diagrams
March
Call, Email, Tweet, Chat, or Post we’ll answer your questions
10440 Balls Ford Road
Manassas,VA 20109
Specinnovations.com/blog
Innoslate.com/blog
info@Innoslate.com
support@innoslate.com
571-485-7800
LinkedIn: Innoslate User Group
Twitter: @innoslate
innoslate.com
specinnovations.com
Connect with Us!
LML to SysML and Back

More Related Content

LML to SysML and Back - Systems Engineering Languages

  • 1. Developed by The webinar will begin shortly WEBINAR LML to SysML and Back A Look into the Lifecycle Modeling Language and System Modeling Language
  • 2. InteractwithUs LML to SysML and Back LinkedIn Group: Innoslate Users @innoslate
  • 3. PresenterProfile LML to SysML and Back Steven H. Dam, Ph.D., ESEP President and Founder steven.dam@specinnovations.com Expert Systems Engineering Professionals Certificate Participated in the development of LML
  • 4. OurAgenda 1 LML to SysML and Back 2 3 4 5 6 The Basics of LML The Basics of SysML The Benefits of SysML Demonstration: Implementation of LML and SysML Questions and Answers The Benefits of LML
  • 5. WEBINAR “It is common practice for systems engineers to use a wide range of modeling languages, tools, and techniques on large systems projects” SysML specification
  • 7. LML to SysML and Back 1. To be easy to understand 2. To be easy to extend 3. To support both functional and object oriented approaches within the same design 4. To be a language that can be understood by most system stakeholders, not just Systems Engineers 5. To support systems from cradle to grave 6. To support both evolutionary and revolutionary changes to system plans and designs over the lifetime of a system [1] 6 Goals of LML
  • 8. LML to SysML and Back • ERA form the meta-meta model for the language elements • An entity is something that can exist by itself and is uniquely identifiable. LML has defined 12 parent entities (Action, Artifact, Asset, Characteristic, Connection, Cost, Decision, Input/Output, Location, Risk, Statement and Time) [Noun] • A relationship connects entities to each other. • e.g. decomposed by/decomposes, traced to/traced from • An attribute is an inherent characteristic or quality of an entity or relationship • An attribute can be of an entity [Adjective] or relationship [Adverb] Entity, Relationship, Attribute (ERA)
  • 9. LML to SysML and Back In this example, the “trigger” attribute on the receives/received by relationship determines if the Action must wait to execute until it receives the Input/Output element Attributes on Relationships trigger
  • 10. LML to SysML and Back • Entity names were chosen to provide a clear, easy to understand general “bin” for information • Example: Action vs. Function or Activity • Child entities have unique attributes and/or relationships • Example: Measure vs. Characteristic • Child entities inherit attributes and relationships from parents LML Entities
  • 11. LML to SysML and Back • Many discussions about keeping “Orbital” as part of the language • Has important different attributes and relationships • Key to a major part of the SE community (space) • Requirements contain quality attributes LML Entities
  • 12. LML to SysML and Back • Key relationships for traceability • These represent a subset of all the relationship • See specification for complete set of relationships • Note all parent/child relationships the same for each entity class Traceability
  • 13. LML to SysML and Back • Note how LML covers all the different pieces of information in these domains • Entity classes for other domains can be added as extensions LML Ontology Mapping to Domains
  • 14. LML to SysML and Back • 3 Mandatory Diagrams • Action for functional modeling • Asset for physical modeling • Spider for traceability • Suggested diagrams for all classes based on common visualizations of the information (e.g. Risk Matrix for Risks) Diagrams
  • 15. LML to SysML and Back • All extensions must be submitted to the LML Steering Committee for adjudication before they will be recognized as official extensions to LML • Version 1.1 added entities, attributes and relationships for SysML support Extensions
  • 16. LML to SysML and Back • Actual instantiation of the LML specification will be up to tool vendors • Innoslate instantiates LML completely • Type attributes are labels • Includes diagrams for every class • Could fairly easily be used by any tools that enable schema extension • However, adding diagrams might be difficult for users to add – tool vendors would have to add them Instantiation
  • 18. LML to SysML and Back • SysML is a “profile” of UML (i.e. it extends UML) • Consists of a set of diagrams • No ontology explicitly (at this time) • Compliance with SysML requires that the subset of UML required for SysML is implemented, and that the SysML extensions to this subset are implemented Language Architecture
  • 19. LML to SysML and Back • SysML is specified using a combination of UML modeling techniques and precise natural language to balance rigor and understandability • “Use of more formal constraints and semantics may be applied in future versions to further increase the precision of the language” • Consists of nine (9) diagrams Language Formalism
  • 20. LML to SysML and Back 4 Pillars of SysML 1. Structure definition use interaction state machine activity/ function 2. Behavior 3. Requirements 4. Parametrics From: Object Management Group.
  • 22. LML to SysML and Back • Linkage to UML for software-centric systems • Specific diagrams defined across a number of SE areas • Requirements Diagram • Parametric Diagram • SysML has encouraged model-based SE Benefits of SysML
  • 24. LML to SysML and Back • Broad • Ontology-based (enables translation from LML to SysML and back) • All the capabilities of SysML (with v1.1 extensions) • Simple structure • Useful for stakeholders across the entire lifecycle Benefits of LML
  • 25. LML to SysML and Back
  • 26. Questions and Answers: Enter Your Question in the GoToWebinar Control Panel LML to SysML and Back
  • 27. WEBINAR Next Webinar Time to Build Diagrams March
  • 28. Call, Email, Tweet, Chat, or Post we’ll answer your questions 10440 Balls Ford Road Manassas,VA 20109 Specinnovations.com/blog Innoslate.com/blog info@Innoslate.com support@innoslate.com 571-485-7800 LinkedIn: Innoslate User Group Twitter: @innoslate innoslate.com specinnovations.com Connect with Us! LML to SysML and Back

Editor's Notes

  1. 20 minutes 1-3, 30 minutes 4, and 10 minutes 5