 Hello everyone, this is Shila Ratna Banshwade from Walton Institute of Technology, Today we are going to see the topic design situations and design requirements. Moving further, learning outcomes, students will be able to describe the design situation and design requirements. Moving further, now whenever we are in a process of designing a particular product, we need to find out what are the design situations and design requirements for the particular products. Now what is design situation and design requirements, we will look into details. But these are the steps that are to be followed or to be completed before the actual design of the particular product. Or when you go for actual designing of that particular product. Now description of the real world problem is nothing but defining a design situation. Exactly what is the area or what is the environment in which that particular product is going to be designed or is going to be function is nothing but defining the design situation. The goal of design is to improve the way things are. Whenever we go for designing, we go for improvement, we go for development of a improved product. So there is the major focus on improvement. By some or the other way improvement is required in the design process or through the design process. And designing must be based on real life conditions. There has to be certain base for your design. There has to be certain real life situation or problem associated with your design. Then we can say that particular product, particular design will definitely success or will definitely have success in the intended market. Or the sale for that particular product will definitely reach as per desired. If you have a real life condition base for your design, the design gets more concrete. The more the concrete conditions, the real life conditions, the more concrete will be your design. Moving further, now why there is need of design situation. There are certain characteristics for which we go for designing a particular product. And these characteristics should be addressed by the designed product. These characteristics also includes the customer needs, the manufacturing needs, the stakeholder needs and the company needs. So all these things should be addressed by that particular product. So understanding of the situation into which the product will be used also is required for designing a design situation or modeling a design situation. Now I suggest you to pause the video at this moment. Look at the image on the screen. You can see a stapler kindly note down what are the design situations that are need to be considered. When we are going to design a small stapler like instrument. Now when we go for designing and stapler in what conditions that particular product will be used finding out these conditions is nothing but finding out the design situation. Now as far as stapler is concerned, the first question that your design should answer is how many pages do you want to staple at a time? The first and the foremost question. What cost is the customer ready to pay for your product that is your stapler? With what is or how many times a day the particular user is going to use your stapler? What other benefits are you providing with your stapler? With your design of stapler. So when you answer to these questions, we say that we have the design situation and answer to all these questions will definitely lead to development of a successful product. Now how situations are being modeled. Now to model situations, we need to gather information to create a particular model. As we know before going on for the design or actual product design, there are certain research work being carried out some survey being carried out and in that survey or in that research helps to model a design situation. Success of model depend on the information that is being gathered before going for the design of that particular product. Now information here means the customer needs the market demand, the market segmentation, market penetration, how much you want to penetrate, what amount the company can invest in that particular product. All these information is required before you go on for actual designing of a particular product. Now there are certain stages to gather information or there are certain stages that are being followed to gather the relevant information before going on to the design of particular product. The first step that is required is preliminary research. As we all know when we are going to develop a particular product, there is a team being formed which works on the development of the product. Now these teams at the preliminary research stage go on the individual basis and individually find out different information related to that particular product. All individually work on the same problem. Then preliminary review is achieved. Now when you gather the information or when the individuals of the team gather the information on their own basis, they put forth the findings or put forth the research work in front of the team. A review of everybody's research is carried out in the preliminary review stage. After the preliminary review, a developing goal or a definite goal is framed or a problem statement is framed. All the individual team members put forth their research work. All review each and everybody's research work and then from that research work, a summary is being drawn and your developing goals are stated. Product developing goals are stated. With this developing goals, research together is combined and they work together to form or to develop a particular product. So these are the stages that are required for gathering information which is required for modeling a situation or a design situation. Then moving on further, what are design requirements? Now design situations are the conditions where your product is going to be working or where your product works. Now design requirements are the features, all the attributes that your product should have, the features that your product should have. It should help to convert ideas into design features. The requirements are such that they help to convert the customer needs into design requirements, into design features. It is the step after finding out the customer needs. First of all, you go for the survey or research where you find out the customer needs and from the customer needs, you jot down or point out the design requirements, the features that needs to be included in the product particular product. The elements that are included in product requirements include first performance, the primary operating characteristics of the product, how the product will perform, to what extent. Of the customer satisfaction, the product will perform. Then the features, characteristics of the product. What additional features are you going to provide to your particular product apart from the basic function that is intended? Additional features, additional facilities, then reliability. Reliability is the mean time between failures. How reliable the product is? How often does the product fails? Or when will the product fail? These criteria are required to be defined in design requirements. Moving further, durability. The product life estimate. How long the product will stay without any maintenance or damage? Then serviceability. The ease of repair, part replacement or maintenance. If there is some breakdown in that particular product, it should be easily repairable. The part should be easily replaceable and should be available in the market. Then packaging. Packaging of the particular product, packaging requirement, labeling and handling. Then perceived quality. Subjective reputation of the product. What quality of the product you have given to the particular product? The product quality should be very good. Then the cost. Manufacturing as well as servicing. Now I suggest you to pause the video at this moment and you write down the design requirements for an electric toothbrush. Let us discuss what are the design requirements for an electric toothbrush. You can see on the screen some of the features of an electric toothbrush. As far as performance, feature or reliability and durability is concerned. What should be the dimension? What capability it should go? How much it should long last? Everything. Then serviceability, packaging and cost. So these are some of the design requirements for an electric toothbrush. These are just an example. These are the references. Thank you.