Engineering Design Process Overview
Summary
TLDRThe engineering design process is an iterative method to solve complex problems and meet client needs. It involves two main stages: design analysis and solution construction. In the analysis stage, teams clarify their assignment, understand the problem, and define design criteria. The solution stage includes developing solution options, evaluating them using decision-making tools, prototyping, and testing to ensure the solution meets the design criteria. This process is critical for creating successful engineering solutions.
Takeaways
- 🔄 **Iterative Process**: Engineering design is an iterative process where teams may need to repeat functions after gaining new knowledge.
- 🔍 **Two Main Stages**: The process is divided into understanding the problem and constructing a solution.
- 📝 **Clarify Assignment**: The first step is to clarify the team's assignment to avoid solving the wrong problem.
- 🧐 **Understand Problem and Context**: Teams must fully understand the problem, including past failures and new requirements.
- 📊 **Define Design Criteria**: Design goals are formally defined with quantitative values during the analysis stage.
- 🤔 **Research and User Interaction**: Engaging with users and conducting research is critical for understanding the problem.
- 💭 **Develop Solution Options**: Brainstorming is used to generate as many solution options as possible.
- ⚖️ **Evaluate Solutions**: Teams use structured decision-making tools to reduce options to a selected design.
- 🛠️ **Prototype Solution**: Teams build CAD models or physical prototypes, starting with low-cost materials.
- 📈 **Test Solution**: The solution is tested to ensure it meets the design criteria and project goals.
- 🔁 **Iterative Nature**: The process includes back arrows indicating steps that may need to be revisited.
Q & A
What is the engineering design process?
-The engineering design process is an iterative, problem-solving process that creates a solution to meet client needs, which can be a device, product, process, or system.
Why is the engineering design process considered iterative?
-The engineering design process is considered iterative because teams may need to go back and perform the same function more than once once they've learned new knowledge.
How can the engineering design process be divided into stages?
-The engineering design process can be broken up into two overall stages: the design analysis stage, where the team understands the design problem, and the solution stage, where the team constructs a solution.
What is the first step in the design analysis stage?
-The first step in the design analysis stage is to clarify the team assignment, which involves understanding the assignment by having conversations with the client or boss.
Why is it critical to thoroughly explore the design analysis stage?
-Thoroughly exploring the design analysis stage is critical as it sets the team up for success by ensuring a clear understanding of the problem and context before moving on to solution development.
What are the tasks involved in understanding the problem and context?
-Tasks involved in understanding the problem and context include research, talking with people, and visiting destinations to learn more about the problem.
What is the purpose of defining design criteria?
-The purpose of defining design criteria is to formally define the design goals, which are typically expressed as objectives paired with quantitative values.
Can you provide an example of design criteria for a portable music player?
-An example of design criteria for a portable music player could be that the device must weigh less than 5 kilograms.
What is the first step in the solution stage?
-The first step in the solution stage is to develop solution options, where the team brainstorms to identify as many possible solution options as they can.
How do teams evaluate solutions during the solution stage?
-Teams evaluate solutions using structured engineering decision-making tools, such as screening and scoring matrices, to reduce a large number of solution options down to a selected design solution.
What is the role of prototyping in the engineering design process?
-Prototyping in the engineering design process involves specifying the solution and building a CAD model or a physical prototype to visualize and test the solution before refining it with higher cost and fidelity materials.
Why is the process of prototyping and testing iterative?
-The process of prototyping and testing is iterative because it often generates more solution ideas and requires refinement of the design to meet the project's goals and objectives.
Outlines
🔄 Iterative Nature of Engineering Design
The paragraph introduces the engineering design process as an iterative and problem-solving endeavor aimed at fulfilling client needs through devices, products, processes, or systems. It emphasizes the iterative nature of the process, where teams may repeat steps as new knowledge emerges. The process is divided into two main stages: the design analysis stage, where the problem is understood, and the solution stage, where a solution is constructed. The paragraph also discusses the importance of thoroughly exploring the problem and context, defining design criteria, and how these steps lay the foundation for successful design. Examples of designing a portable music player and a water bottle are used to illustrate the process.
🛠️ Solution Stage of Engineering Design
This paragraph delves into the solution stage of the engineering design process, detailing the steps teams take after thoroughly understanding the problem. It begins with developing solution options through brainstorming, aiming to generate as many ideas as possible. The next step is evaluating these solutions using structured decision-making tools to reduce options to a select few. The paragraph then discusses prototyping, suggesting the use of CAD models for visualization and physical prototypes for device construction, starting with low-cost materials and progressing to higher fidelity as the solution is refined. The final step is testing the solution to ensure it meets the design criteria. The paragraph concludes by reiterating the iterative nature of the process, with back arrows in diagrams indicating potential revisits to previous steps, and highlights the importance of integrity in the evaluation process to identify the best solution.
Mindmap
Keywords
💡Iterative
💡Engineering Design Process
💡Design Analysis Stage
💡Clarify the Team Assignment
💡Understanding the Problem and Context
💡Defining Design Criteria
💡Solution Stage
💡Develop Solution Options
💡Evaluate Solutions
💡Prototype
💡Test the Solution
Highlights
Engineering design is an iterative problem-solving process.
The process can result in devices, products, processes, or systems.
Design process models share common elements despite variations in terminology.
Iterative nature means teams may repeat functions after gaining new knowledge.
The process is divided into two main stages: understanding the problem and constructing a solution.
Design analysis stage involves immersing in understanding the problem.
Clarifying the team assignment is crucial at the beginning of the design analysis stage.
Misunderstandings during assignment clarification can lead to solving the wrong problem.
Understanding the problem and context is essential for identifying design needs.
Research, conversations, and field visits are part of understanding the problem.
Defining design criteria formally sets design goals with quantitative values.
Design criteria should be quantitative to guide the solution stage.
The solution stage begins with developing solution options through brainstorming.
Evaluating solutions involves structured decision-making tools.
Prototyping involves specifying the solution and building a CAD model or physical prototype.
Testing the solution ensures it meets the design criteria and project goals.
The engineering design process is iterative, with potential to revisit steps.
Mastering the engineering design process is key to solving challenging problems in engineering.
Transcripts
engineering design is the iterative
problem solving process that creates a
solution to meet client
needs the solution can look like a
device a product a process or a
system many models exist that capture
the engineering design process in
graphical
form while some of the terminology or
some smaller features may vary there are
several common elements across all of
these different
models the first is that the engineering
design process is
iterative what I mean by this is that
teams may need to go back and perform
the same function more than once once
they've learned new
knowledge the second is that the
engineering design process can be broken
up into two overall stages in the first
step the team immerses thems and
understanding the design problem in the
second stage the team immerses thems in
constructing a
solution here are several pictures of
engineering design process
diagrams throughout the developed
modules we will be using this
representation of the engineering design
process teams and courses using
different models will find that most of
the same steps will be found in their
model
model the purpose of this video is to
give an overview of the engineering
design
process we're going to illustrate the
design process by considering two
separate problems the first the design
of a portable music player the second
the design of a water
bottle the left hand side of the chart
is the design analysis
stage in this stage teams immerse
themselves in understanding the problem
it is critical to thoroughly explore and
complete these
steps often times teams rush through
this as they don't find it particularly
interesting however doing this step well
will set your team up for
Success the first step in the design
analysis stage is to clarify the team
assignment it's important to start with
a clear understanding of your team's
assignment you often understand this
assignment by having conversations with
the client or with the
boss often misunderstandings can arise
during this step failure to fully
understand your assignment can result in
your team solving the wrong problem or
solving a problem
incompletely for example if you were
tasked with designing a new a portable
music player you might talk to the vice
president of development to understand
the target audience for the new music
player the second step in the design
analysis stage is understanding the
problem and the
context the goal here is to fully
understand why a designed solution is
needed what has failed with previous
Solutions and what new features are
needed for the
design the tasks in this step include
research talking with people and going
to destinations to learn more about the
problem it's also critically important
at this stage to talk with users of the
design
fine so let's suppose you're tasked with
understanding the problem and the
context for a portable music player what
type of research would you need to do
what type of people would you need to
talk to and what destinations might you
visit to understand the problem
better so pause the video now take two
minutes and jot down some answers to
these
questions
the third and final step in the design
analysis stage is defining the design
criteria this is the step when you
formally Define the design
goals these design goals are typically
expressed as design criteria with an
objective paired with a quantitative
value for example the device must weigh
less than 5
kilog so consider the water bottle or
the portable music player designed
design
challenge think about two appropriate
design criteria for one of these
problems pause the video now take two
minutes and write down two design
criteria for one of these challenges
remember to keep your design criteria
quantitative armed with the design
criteria your team can now move on to
the solution stage
the right hand side of this engineering
design process chart is the solution
stage this is the time when finally
teams begin to think of candidate
solutions by doing a good job in the
design analysis stage the team is
prepared with the appropriate knowledge
and ready to tackle this challenge the
first step in the solution stage is to
develop solution
options this is where the team begins to
brainstorm options the goal in this step
is to identify as many possible solution
options as the team can and using a
disciplined process will definitely
increase the number of ideas so off the
top of your head you might be able to
think of a number of new ideas for the
design of a portable music player or a
new water
bottle the second step in the solution
stage is to evaluate
Solutions when you evaluate Solutions
teams use structured engineering
decision making
tools where the goal is to reduce a
large number of solution options down to
a selected design
solution during this process teams use
engineering techniques that include
screening and scoring
matrices the process for selecting a
solution is iterative and at times
tedious however it's very important to
do this step with Integrity because
you're essentially identifying the best
designed
solution the third step in the solution
stage is to prototype the
solution in this step teams specify
their solution and build a cad model or
a physical
prototype CAD models are particularly
good for visualizing the solution or
being able to design intricate
Parts physical prototypes are suitable
when you're constructing a
device when you think about building a
phys physical prototype you want to
initially use lowcost materials then as
you develop and refine Your solution you
move on to higher cost and higher
Fidelity
materials the fourth and final step of
the solution stage is to test the
solution here you test the solution to
see if it meets Your Design criteria in
other words does your developed solution
meet the Project's goals and
objectives let's take another look at
the model for the engineering design
process when you look at this diagram
you'll see that there's several back
arrows these are places where teams may
need to revisit
steps for example the process of
evaluation often times generates more
solution
ideas also the process of prototyping
and testing is very
iterative don't be afraid to repeat a
step to improve your design outcome
in conclusion the engineering design
process is an iterative process of
creating a solution to meet desired
needs the engineering design process is
a disciplined method to solve open-ended
and challenging
problems the engineering design process
is used throughout the field of
engineering and mastering it will allow
you to work on exciting engineering
design
problems
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