This Model-Based Systems Engineering (MBSE) course and the Digital Thread courses featured earlier in this specialization bring together the concepts from across digital manufacturing and design, forming a vision in which the geometry of a product is just one way of describing it. MBSE is where the model resulting from the evolution of system requirements, design, analysis, verification and validation activities is the focus of design and manufacturing. Students will gain an understanding of systems engineering, the model-based approach to design and manufacturing, the Digital Twin, and a roadmap toward a model-based enterprise. Students will be able to explain the value and expectations of systems engineering and model-based systems engineering, and the underlying motivations and opportunities represented by a model-based enterprise. They will develop the knowledge necessary to perform a baseline assessment of an organization’s potential to leverage MBSE. Main concepts of this course will be delivered through lectures, readings, discussions and various videos. This is the eighth course in the Digital Manufacturing & Design Technology specialization that explores the many facets of manufacturing’s “Fourth Revolution,” aka Industry 4.0, and features a culminating project involving creation of a roadmap to achieve a self-established DMD-related professional goal. To learn more about the Digital Manufacturing and Design Technology specialization, please watch the overview video by copying and pasting the following link into your web browser: https://youtu.be/wETK1O9c-CA
Model-Based Enterprise Self Assessment
Loading...
Do curso por University at Buffalo
MBSE: Model-Based Systems Engineering
56 classificações
University at Buffalo
56 classificações
Curso 8 de 9 em Specialization Digital Manufacturing & Design Technology
Na lição
Model-Based Enterprise
The purpose of this module is to develop an understanding of the MBE Self Assessment tools. At the end of the module, learners will be able to go through a tool to analyze MBE maturity.
Conheça os instrutores
Ken EnglishDeputy Director
Sustainable Manufacturing and Advanced Robotic Technologies Community of Excellence
Welcome to the first lesson of the fourth module in
the model-based enterprise course of digital manufacturing and design.
This module focuses on performing model-based enterprise self-assessment.
As we go through this module,
you'll develop an understanding of the different levels of capability for
a model-based enterprise and you'll be able to
evaluate individual categories of model-based enterprise maturity.
These skills will help you to discuss and set
a vision for the future of model-based enterprise in your work.
Various self-assessment tools have been
created for companies or even individuals to decide what level of MBE they have achieved.
An assessment tool helps someone objectively determine where they are on
the scale as well as help them set a vision for what level they would like to be at.
The primary tool we're going to be talking about in this module is one that
comes from the National Institute of Standards and Technology or NIST.
The NIST assessment tool divides model-based enterprise readiness into six levels.
Each level has specific expectations and gives you an idea of
the changes that need to be made in order to go from one level to the next.
The NIST scale starts at level zero which is basically
traditional design practices where a company or
entrepreneur uses drawings and manual processes to convey information.
And goes to level six where the model is the master.
At level six, there is full connectivity throughout the enterprise.
Another way to look at these different levels,
is that level zero is drawing-centric
resulting in a completely disconnected manufacturing enterprise.
As we step up in levels,
we move into model-centric where additional information is embedded into the process.
And for example, in level one drawings
are derived from a model but they're still disconnected.
At level two, we're starting to look at
situations where the drawing and model are managed together.
At level three we begin to pivot to
a point where the model is the focus and drawings are supplemental.
At level three, we have a model-based definition perspective
or MBD as we have referred to it in earlier modules of this course.
Level three approaches have models containing
some product and manufacturing information or PMI with
some drawings to provide supplemental information not contained within the model.
For level three, we are still dealing with a disconnected enterprise.
But are starting to integrate some activities with a single source of information.
Level four increases the degree to
which the model drives the process and drawings are no longer used.
So the model contains a complete product definition in PMI.
Levels five and six are the highest levels of
the scale where the model-based definition transitions to an integrated enterprise.
On level five, we begin to have
an integrated manufacturing perspective as well as an integrated internal enterprise.
So working within your company or your organization,
you're using the model to support your decision making
even to the point where you're working with it in some nontraditional activities.
Level six is the most aspirational level.
This is where manufacturing is tightly integrated
based on the model including the extended enterprise.
The extended enterprise refers to the entire supply chain using the model to
communicate with the model driving all associated activities.
This is true digital manufacturing and design.
One of the classic questions about MBSE particularly when
an organization is looking to adapt it is, what's the ROI?
What's the return on investment.
It's a fair question but it's a very difficult question to answer
because the ROI on systems engineering itself is hard to answer.
The ROI on systems engineering is,
what is the cost of an error that you never encountered?
If you do systems engineering well,
it really means that you will not encounter issues.
And so, therefore, proved to me that it has any value.
With that as context?
It's hard to point to a specific system and
a specific application of model-based systems engineering and say there's the value.
But I'll pull back and talk about
a product line because most of us live in product line organizations.
One of the organizations that we deal with
this a classic aerospace and defense firm and they've done a number of drones, UAVs.
They did fixed wing. They did rotary.
They did subsea.
They did sensing platforms.
And they did delivery platforms.
And they were an early adaptor of model-based systems engineering techniques.
They applied model-based systems engineering to each of these individual systems.
They found value but it was hard to quantify.
Over time, what they realized looking at these high fidelity representations is
there's a common way that we build drones in
this organization regardless of what the exact purpose and the exact technology is.
So they abstracted out what's called a reference architecture that common way,
those common requirements that they respond to,
the common physical architecture, the common functions.
And once they had that reference architecture in a high fidelity representation,
they gained four primary benefits.
First off, they had a common language within their organization.
They eliminated what's known as the plague of vague.
They eliminated miscommunication because when they used a word it had
a defined meaning and that immediately brought
quality implications to their future systems.
Second, they radically accelerated the time to market
of a new problem because when they got
a new request they didn't start from a blank sheet of paper.
They had a reference architecture which they could build upon and customize.
Third, they found more commonality in their product line or in their family of systems.
They used common technologies and only deviated when there was a reason.
And the fourth is probably the most important.
They had a built-in learning system.
When they completed a new system,
they compared it back against the reference architecture to
say what should we build back into the reference architecture?
And what is really one-off for this system that we just built?
So while it's hard to reflect on any one of those and say
the ROI for delivering system X is fill in the blank,
they can look at the product line or the family of systems and realize
those four key benefits and therefore gain
tremendous value simply by representing their knowledge better.
And that's what MBSE is all about.
There are a few MBE capability tools out there that you can use for assessment.
One that I want to talk about first,
is the NIST capability tool.
The initial version is basically a large text chart that can be downloaded as a PDF.
I printed off a copy here and have a larger version behind me.
This version gives you different categories each with
pretty good descriptions of the requirements for each level of MBE capability.
Using the tool, you can understand the purpose of requirements for each level.
And then basically, you can go through, look at it,
and if you satisfy the requirements for a level, good.
If not, you might use that to evaluate some gaps between where
you are and where you want to be.
A group called Action Engineering has taken a different approach to MBE assessment.
Rather than using six levels,
Action Engineering uses three levels.
Basically, traditional, current, and state of the art.
Doing so gives people a much simpler way of assessing where they are
especially relative to their competitors and relative to the state of current technology.
The scale is not useful in setting a roadmap that is forward-looking for multiple years.
But it's easy as a quick check to see how far ahead or behind you are from your goal.
In the resources section,
we've included a link to a document that gives you an idea of
how Action Engineering performs model-based engineering assessment.
At the end of the module you'll be asked to
perform your own model-based enterprise assessment.
To do so, the remainder of this module is going to focus on
specific areas of manufacturing and design where MBE can play a role.
Some of this is admittedly vision-casting and forward-looking.
For some of the categories,
commercial offerings have not yet caught up to all of the concepts presented here.
However, it's a very dynamic situation
with implementation capabilities maturing very quickly.
The assessment tool that will frame
the discussion of model-based enterprise for the remainder of the module,
is the second generation of the NIST MBE capability assessment.
Also available in the resources section,
this is an Excel spreadsheet with many capabilities.
To get started, I would still use it just looking at the text
and using the requirements of each level to determine MBE readiness.
For those who are more quantitative and want to score,
the Excel spreadsheet allows you to do that and can
generate a radar plot to show how strong you are in different areas.
From a strategic planning perspective,
this can help you to understand where you might want to invest to bring yourself or
your organization up one or more levels on the MBE scale.
The updated version of the NIST tool,
the Excel version, is available via github.
So NIST can keep the latest version always easily available.
Explore nosso catálogo
Registre-se gratuitamente e obtenha recomendações, atualizações e ofertas personalizadas.
O Coursera proporciona acesso universal à melhor educação do mundo fazendo parcerias com as melhores universidades e organizações para oferecer cursos on-line.
© 2018 Coursera Inc. Todos os direitos reservados.
