 Hi, I'm Prateek and I'm going to be speaking at Meta Refresh 2013 on design by philosophy with this talk I hope to show way of taking design decisions which involves more than just context and purpose. What I mean by that is unlike in the domain of truth where one plus one is two, in design things are not that straightforward. For example, should the base font size of every website be 16 pixels? Most likely not. The actual value is dependent on things like you know where the website is being used on a mobile device, on a tablet, on a desktop. What is it being used for? And finally, who is it being used by? What I want to show with this talk is that there can be another more constant factor that affects and hopefully motivates our design decisions and that is a certain philosophy that we hold or philosophy more accurately. For example, let's say we're designing a website for paying bills. And the app is in this stage where the person comes, enters their billing number and bill amount and pays. Now we take this philosophy which says that users should not have to repeat interactions. So we realize that people come and pay the same bill over and over again. So if we are to prevent this reputation of interaction, maybe we give them an option to save a certain customer number or bill amount and when they come back again they can just use that and pay the bill and not have to enter the voting again. Now say you bring another philosophy and this says that the fewer interactions there are, the more likely the user is to go through the process and the more smooth the experience will be. Now this will show us that a user having to explicitly save a number and an amount for reuse is an extra interaction that we can get rid of. Why don't we save all the numbers that he enters automatically instead and when he comes back we give him an option to enter a new number or just use one of the numbers that he had previously used. So just by these two philosophies we've improved the experience of entering a bill significantly. So my talk is going to be about how we should, how we can arrive at these philosophies and use examples and beliefs such as this to improve the experience in our apps and make better design decisions going forward. Hope to see you there.