Hi, everyone. This is Professor Yoon Yong Jin from KAIST. Today, we're going to study about the fourth week of the Stanford Design Thinking and Asean Startup. This time, we are going to more study about the first stage of the Design Thinking, which is about prototyping. So we start from the empathize, and define, ideation, and prototype, and then test. So now, we are in this early stage of the prototype. Up to the last week, we start to study about empathize, to figure out what are the real pain point, and then how to define the problems, and how to ideate by using the many method like SWOT Analysis or Pros and Cons Analysis, or the decision matrix or the hybrid method of the synthesis and strategies to define an ideation, and once you have a idea, and now you're in the stage of the prototyping, how to make this product or the service with this ideation. Today, I'm going to explain about more hardware startup by using the 3D printing for prototyping. Let me start with the Stanford Design Thinking again, and then explain what is the limitation of the Stanford Design Thinking, and how to overcome this limitation of the Stanford Design Thinking. Again, let me recall the Design Thinking process starting from empathize, define, and ideation, prototype, and test, and then from there, empathize, to figure out the users' real point, we need to start from zero to figure out a lot of problem from the users, and then by the process of define, we sorting out what is the real problem of the users' pain point by using the SWOT Analysis and Pros and Cons and decision matrix, and other method. Then after the define of the users' real problem, we can bring out a lot of idea from brainstorming and some method by using trees or whatever, and then we can generate a lot of idea, like diverge again, and then we need to cut down this idea concept by considering our resources and a lot of limitations, and then we need to decide what kind of idea we will prototype. We can have a lot of prototyping, and in the end, we can make one product. Last one is test, it's combining with this total concept of build-measure-learn, the process, and then iteration. This Design Thinking process is very good process and very ideal process. However, in the reality, there is some limitation. So let me explain about some limitation. So definitely, Design Thinking has a lot of advantages and a lot of good things because compared to the other problem-solving method, Design Thinking more focus on the empathy to figure out the user's real pain point, and then once you figure out, we'll define the problem. After that, we do the product ideation, and using the product design, and then prototyping, like that. However, to finish the order for this Design Thinking process, most of the process is stopped in the prototype session. Many Design Thinking like some class or some workshop, they are only doing from the empathize, define and up to the ideation. Once you have ideation, we need to bring this idea to the real product by using the prototyping. However, making the prototype, and after that, this prototype to the market test, it's very difficult to the conduct because of a lot of resources are not provided. So to accomplish these five steps of Stanford Design Thinking: empathy, define, ideation, and prototype and test, we can use the 3D printing to prototype the ideation of your product. So in this session, I'm going to introduce about how to use the 3D printing technology to realize this Stanford Design Thinking process, also using the FaaS, Factory as a Service, to prototype your test and prototype your product. Then also, I'm going to introduce about how to test the product to the market, which is a very popular platform, and these days, you can use it. So let me talk about prototype after the ideation first with the FaaS system. So FaaS is a smart factory concept which is about the Factory as a Service. Factory before that, the factory is more focus on the making product. However, these days by emerging of the smart factory, we can use the factory as a service can make a small volume of the your prototype. So normally you upload the design or product design to the cloud like service, then those 3-D apparatus and cart, the file goes up to the FaaS. In the off-line by using the 3-D printing and a lot of other assembly, you can make your product prototype in the very small cost. So this is factory as a service. So these days, these personal idea and personal structure, personal prototype, where the SME features a small medium enterprise as a product can be prototyped with this factory as a service platform. Then later you can upgrade your product with some R&D and/or some product in the market. So once we have this prototype, you can test your product to the market with digital marketing toolkit, which is about the famous like some social media platform. You can use Kickstarter or Indigo, YouTube or Instagram. Wadiz, those are crowdfunding service. Also these days, Windows people with WTP is also one of the emerging test bed for the creator or for the inventor like you. So once you have some product, you can test your product to the market in EGA. It's not EGA actually. If you want access to those crowdfunding like Wadiz or the Kickstarter, it's very difficult to access it. So later, maybe I can introduce, If I have a chance, I want to introduce how to access these channel to introduce your product to the market. But however, you can easily use the YouTube or Instagram. But if you don't have much follower and much of those customer contact, then it's also not easy to get users feedback. So these days platform can accelerate the process of design thinking in the later stage of design thinking, like prototype and test. Prototype, you can use a fast accelerator service with 3-D printing. After having a product, you can test your product in YouTube and Instagram, Kickstarter, those digital marketing tools. So you can choose a lot of platforms to idealize your product. So let me introduce the 3-D printing process. So first is modeling. So you model your product by using computer aided design CAD modeling from solid model to the STL file. You'll unload this STL file to this CAM platform, which is computer aided manufacturing. So by using the processing and preprocessing of the mortar, CAD mortar, and fixing the orientation and support and slicing and best planning how to do the additive manufacturing. Those data transfer to the process which is in an apparatus, in a part. So you can do the layer by layer like a building. We call this 3-D printing, another name is additive manufacturing. Because we can make a product by layer by layer, like some manufacturing like this. Then once you've finished this process, additive manufacturing task, go back to the modeling and you can change the design of your product. So those rapid prototyping and 3-D printing technology is called a lot of names. Before we called it as rapid prototyping because more focus on prototyping. But now we change the name to the additive manufacturing. The big difference between rapid prototyping to the additive manufacturing is that you can figure out, you can sense from the terminology, before the 3-D printing technology was more focused on the prototyping. So we use this 3-D printing technology for making something prototyping, not for the real product. However, once we change terminology to the manufacturing, which means that we not only use this technology for their prototyping but also we use this for the real manufacturing. So we try to make this technology to make real product, not only for the prototyping. We also called this technology as a solid freeform fabrication or layered manufacturing. But in the academy area, we mostly use the additive manufacturing for the 3-D printing technology. From now, we are going to more study about 3-D printing technology. What is the origin of the 3-D printing technology and what kind of different method to achieve this additive manufacturing technologies in the next session. Thank you very much for your attention. We'll move on to the next step for the 3-D printing technology. Thank you.