 So I want to I've done this maybe a million times now what I want to do is I want to see what your expectations are and then take it from there because there are many ways to cover this topic and I would like to make it as much interactive as possible. So I'm going to do I'm going to kick start with a small activity that will help me understand what is the audience like and then we will tailor the the 60 minute work demonstration slash presentation in based on that. So this is on behavior driven development and we're going to be writing some code we're going to be doing a demonstration we're also going to be covering some concepts behind what is behavior driven development where it comes from for the purpose of this presentation I would not distinguish between acceptance test driven development and behavior driven development I know Dan North who coined the word behavior driven development might not be very happy with that but for this presentation I do not distinguish between the two that's more of a philosophical discussion right by don't believe in God kind of a discussion right which we're not going to go there right now. I want to form three groups all right this is not a big audience so we can easily do three groups I want to form three groups and in your groups I want you to tell me what are specific observable results that will tell you the activity that we're going to list after this that it's successfully completed. So what I want is at the end of ten minutes or five minutes actually what are specific observable results that will tell us that you've completed the activity successfully right so before I show the activities because then everyone wants to be in the one group which is really the nice group to be in I want to separate them out into three groups and I see that there are a bunch of people from the same company sitting next to each other so now is a good time to separate them into different groups so we'll start there and you're going to say one two three one two three one two three so all the ones will be in one group all the twos will be in other group all the threes will be in other group I want to go through this really quick because this is just a warm up exercise that will help me understand who's in the room all right so we'll start there okay well we'll company that row and come here it's not that difficult guys.