In the last Friday, I had presentation about midterm project that a member of group is 5people. We have presentation about trash and waste of time to do the most. We also got to interview people that what they think that is the most waste time for us and we ark a questions on web board is www.phanthip.com and we found that almost people think we waste the most time with playing mobile phones and then we bring a information from interview to presentation. but information of we it very little and we are not have informayion observe. I think may be we do not divide the work seriously and is not discussed in much the players and questioning our wide no definite direction. As a result, teachers do not understand and we do not yet have enough information to argue with the professor. After we finished our presentation was to sit and talk together in a group that How we fix a project. Which we think and discuss is more time and we found a reasonable answer that. We should be put the question to narrow. “The waste time in the supermarket.” Which is that we waste time in line to payment when we go shopping there, then we have to do a survey of the supermarkets in the individual take time to payment and how much and mostly a waste of time is someone paying cash or credit card. We also found that the delay in paying the credit card and the customer does not check for the trade to be made when scanning bar codes and then have to make a return or take the trade away from the machine. This causes a waste of time. Problems in the observe is traffic jam it’s made to delay and take time for the next place. From we interview and observe we thought that we want to makes the device will help reduce the time to spend money and convenience is wheelchair can think money can scan the trade and we know the price Shopping Cart, It is contained a bag to put the customer can return to it and to pay, which will make it faster, do not waste time scanning and waiting on long queues.