Interfaces in the Real World

    IT interfaces often grow from physical ones. For example, here are the hardware checkboxes:



    In general, the best example of the correct engineering interface is a faceted glass .

    Why? Very simple. On the one hand, it is friendly to Soviet robots: a round upper strip allows automatic washing to find it since the 40s. On the other hand, he forgives human errors: the ribs stop the glass from rolling off the table when it falls. Plus, he's just beautiful.

    Now I will show a few more interfaces that make life easier. The general point is to try to understand how the developer thought in order to make something more convenient.

    But I'll start with a bad example. One of the ugliest IT interfaces I've seen is disk packaging. After three uses, it will be all in prints, scratched or even left without an envelope.



    Now affordans . Affordans is an “inviting” or “alluring” property of an object that clearly indicates the nature of its action. An example from the real world is the orientation of tailor's scissors, where you simply cannot put your fingers wrong (there is a wide hole for 4 fingers on one side and a smaller one for a large one on the other). The pencil for writing a new post on the Habr’s panel on the left is also an example of weak affordance.

    So, usually IT interfaces used some kind of objects from the real world to build metaphors. Well, sort of ajar door on the exit button and so on. The task to be solved is the transfer of experience from a familiar field to an unfamiliar one.

    Here is an example of how beautifully old experience is transferred to training. Here, it is important for us to teach the user to open the bag in place (that is, orient it correctly):



    Well, at the same time, good advertising, right?

    There is a reverse process. Icons appstore quite well entered into reality.



    I never thought that I would see how the icons are sold, but no, here.

    Worth mentioning a bag of sugar. A legend goes about him that the inventor committed suicide due to the fact that no one understood how to use it. So, it is assumed that you do not tear off his head or tail, but carefully break in the middle. Which, incidentally, is much faster, more convenient and can even be done with one hand. Unfortunately, these bags are not always filled correctly - and instead of a hard tube, such a sluggish snot turns out. This is an example of how, in general, a good interface can be defeated by previous user experience.

    Another great example of prejudice is containers for hot food and salads. Plastic ones, transparent. Again, the engineers came up with the idea of ​​making ears so that you could easily grab them and lift the lid without poking it with your nails. The first implementation was not the best - one eye on the container and one on the lid. It was assumed that when closing the ears do not match. Clear business, all closed them one to one. Because it looks so neat. Here's the next level of evolution for these ears:



    Now a fucking bag that doesn't want to open. It’s just that it is compressed in a pack so that it becomes difficult to separate the layers. The engineer came up with the idea of ​​printing oblique packets when one layer is shorter than the other:



    This is a great solution. But when we started ordering our packages for retail five years ago, it turned out that another wonderful person with an IT education (chemist) also came up with a polymer that takes and does not stick. It just does not stick together. Now, when chemists tell me about the features of the architecture of the perceptron for calculating polymers, I no longer ask questions. I felt the packages.

    In general, packages are the clearest example of a struggle between a manufacturer’s interface, a client’s interface, and human greed. See these?



    I’m sure that the shops that use them don’t get a hell of a lot of money every day just because there are situations: “Oh, apples. I’ll take a couple ... but, no, the package must be unfastened. ” You could buy packages that are easily unfastened. You could use others. But no, keep the awkward interface.

    Move on. Tin cans illustrate embedding a tool for working with an object in the object itself. Without such a key, you need to look for a can opener (and some of them are very non-trivial for training), or try to open the can with improvised means. We opened them with knives, bricks, axes and even once with a spoon. It was worth embedding the tool in the jar itself - and everything became much more convenient:



    And here is the spoon that goes with the yogurt. I was incredibly happy when I found her. The producer, I think, too, because now you can eat yogurt in the park. And do not carry a tool with you for this. Sales must have grown.



    And this is one of the most interesting specimens.



    In the twenty-first century, the cost of producing such a “nipple” is not much higher than a conventional tube. It was just a second time to think and do. Until you try such milk, the difference is not clear - but after that the usual tube directly tangibly scratches the tongue. It would be difficult to come up with this, asking users "what do you want to improve?"

    The following case is an example of solving the same problem by different methods. Bread is sometimes good to buy chopped. We sell pre-sliced ​​bread, which costs a ruble or two more. In Europe and Africa, such bread cutters are almost everywhere. You can put anything there. Something tells me that this solution is better:



    And another example. This “toilet” was also found in a Norwegian store:



    If you pay with a bill, then the cashier presses a button on the cash register with her image. Coin change drops into the bottom tray of the “toilet bowl”. If you pay with coins, then just drop them on top. The device carefully sorts and recounts them. Madly saves time at the checkout and just happy.

    Milk tubes and these devices have a common feature - at first glance, they are completely unnecessary for an ordinary person, but if you use them, you get a feeling of delight. And yes, in our history there was also one such strange thing. A man came to us and brought rugs with sleeves. Fucking, we thought in unison. But no, they didn’t go there, but actually found a need. When I sat with the tablet that evening and froze (it was such a beautiful rainy day in Moscow, when it became extremely cold), it was really cold for my hands. Before, I would just have wrapped myself up in a blanket more cunningly, but this bad person made me want to buy.

    He left a few pieces - and we tested them on live people at the toy libraries.



    It was incredibly difficult to take away the blankets from living people even after photographing. As a result, we put them on sale. At this moment, the manufacturer brought a plaid with 4 sleeves - for two. And this thing, it seems to me, will shoot - the couples will no longer need to share a tucked blanket. At least when I was thinking of a wedding present, it worked.

    But move on. Here is another example of a need :



    This is a cellular modem that distributes around Wi-Fi. It needs to be constantly shared with hotel guests or bus passengers, so the password is written on it. If you saw Yota Many, then you know that there this problem was solved by the “on - off - network without password” switch. True, flimsy, but the idea is excellent.

    And finally, a wonderful one (probably the one that works best to increase the speed of object recognition) and at the same time a low-tech example of an indication from Samarkand.



    Yes, in order to distinguish spices in the bazaar of spices, samples of source codes are stuck in them.

    But a combination of IT and a well-thought-out approach. Queue Implementation :



    One common queue, which is divided into 20 cash desks. At the exit to the checkout area - the number to go to. There is no problem of a slower queue on the side, it is easy to break out cashiers without stress for those who were waiting (just do not send to this queue), there is always an average waiting time, even if there is a passenger with a huge basket ahead, there is no problem with a sudden problem in your tail. And one cool check-up area, where you can coolly and insanely tasty lay out everything that is usually put on small spots near individual cash desks. An unambiguous profit for the store and for the people in it.

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