 HARF is about the second seed which is the context. and this is the seed which is very critical in the total journey of design. To make any product away from the context, it becomes completely useless. You will see how one particular aspect can kill an innovation but not let a product come into the market. Like weessä about each season, ఇలారంమ్క్, ర్ిర్ల్త్ మేటేయలిailedo były ఑బింర్ర్రక్ఔ beauty క్య్యలిaid � ne are talking about learning and listening in class L on both of levels the problem space and the environment. So the problem is not independent of the problem space. A number of times we empathize with the user but we forget the problem space. So this particular case study which we are going to discuss today is going to focus on the problem space. A number of times very critical requirements for example you know CRP of Javan's who don't have water to drink when they are on long missions as a critical requirement. In those requirements the context becomes paramount. Sometimes we are concerned about the problem but we are not very particular about the circumstances in which the problem arises right. What are the circumstances for example let us take say the poly stick which we studied earlier. The circumstance is when they are on those long duty hours they need to have some rest sometimes so that is the circumstance. If I just think about a seat for a policeman without the circumstances in which that whole situation will be then it won't work. So the environment and the circumstance are very critical. A number of our policies and designs fail because of these very important you know considerations of not looking at the social aspects and the cultural aspects of the users for which we are working. Similarly another very important aspect is the socio-economic structure. People have a particular buying pattern. People have a particular financial limitations in their life. So you can't build a product or a service or a system which is not matching the financial possibilities of that particular community. So today for example I'll tell you we've been working in arsenic filtration in rural Varanasi and we gave them water filters which will filter arsenic because arsenic is poisonous. You all know that in this areas where there is groundwater depletion the arsenic from the soil is getting into the water. People don't even know and they are drinking this water out of 102 people die because of arsenic poisoning for them it is very severe. But then large companies came up and said we will provide and then even government gave some support and they provided these filters which had special candles. These special candles were expensive and they didn't know where to get it from and finally those filters are not being used though it is life threatening see. So we've been working on another you know design for that for those communities which can't you know afford these maintenance in the long run. So this socio-economic aspect becomes very very critical in every project.