 Now we have different tools available and let's look at those which are used in product development. There is one product and process development. There is one which is called flow diagram or flow chart. Process flow diagram is basically a diagram in which movement of material, product, people, information is shown in this diagram. If we look at an example of it, then it is a customer. A customer comes to the sales representative and gives his requirement. And from there the sales representative will provide the information to the purchasing person that this is the customer's requirement, according to which the material is purchased. And then the customer is the pre-press department, we are talking about printing press. And this is the example of that. So the pre-press department will also provide information that this is the customer's requirement and according to this work is done. Once the purchase department gets information, it will provide information to the vendor that this material is required or you have to provide. The vendor will provide the material, it will receive it and then it will be put in the warehouse. After this, this material from the warehouse, because the pre-press department has received the customer's requirement, they will talk about the receiving of the material and the material will be supplied from the warehouse to the pre-press department as well as the printing department. The pre-press department will complete their work and send it to the printing department. The printing department will send it to the collating department. The collating department will send it to the gluing, banding, stapling, labeling department. This material will go to the semi-finished product and from there it will go to the polywrap department and from the polywrap, it will go into shipping. And this customer will be shipped and then from the shipping department, all this information will go to the accounting department and to the invoice accounting department. This was the order and we have done this. The information with the documents will go to them and from the accounting department, all this information will go to the customer for invoices and payment. So this is an example of the flow diagram. What are the things involved in this flow chart? If we look at this with a specific example, in the motorcycle production, we can see that first of all it has a tube bending frame and then it has a frame-building work. The frame has been machined, there is machining, hot paint is applied on the frame, then the engine and transmission are attached to it and different parts are coming, they are combined with it and they sent it to the oil tank work cell or different work cells. From there, this testing has been done, let's say 28 different tests have been performed on it and then after the roller testing, it was completed and shipped to the customer.