Magnus
Com 597 Interactive Design
Due 12/5/07
Can you see me now? Good.
Television Picture Menus typically do not scream out easy to operate. These are systems that receive rare consideration from the manufacturer, with the end user in mind, when designing them. There are terms like DNR and Picture littered throughout these menus coupled with strange symbols designed to intimidate and confuse. Electronic retailers have designed many services based around the confusing terms built into the television, to help the consumer get the picture they want. Sometimes manufacturers do make an effort to make a useable system. Many televisions have recently won awards for usability and design. In the cluttered apathetic field, the award may not mean much but, as televisions gravitate towards being entire home entertainment systems there seems to be a larger focus on even the simple television picture menu design. This study focuses on the picture menus of the LG, Sony, Philips, Panasonic, Pioneer, Samsung, and Toshiba televisions. Criteria developed from John Maeda, Ben Shneiderman, Jakob Nielsen, and Bruce Tognazzini’s writings and works in design have been appropriated to evaluate these televisions within two different types of end users.
Two focus groups evaluated the criteria and added their own modifications to the metrics to contribute what they thought were most important in menu design as well.
The first group was a group of tech savvy, male, video game enthusiasts with an age range of 21-23. The second was a mixed gender group with an age range of 49-57. The first group wanted speed and quality adjustments, they wanted to fine tune the television for the fastest speed clearest picture and the most realistic image possible. The second group was mostly interested in a simple menu that would be easy to figure out where they needed to go in order to adjust what they wanted. In other words one group really didn’t care about the terms used they just wanted adjustments and the second group was less interested in the adjustments themselves as long as they could navigate around the unit effectively.
This is the criteria that developed from the groups and designers:
Clear terms
Clear adjustments (Focus Group 2)
Clear and out of the way descriptions (Nielson)
Quick and simple access (Schneiderman)
Until pictures are standardized they are optional and must have dialogue
Restore to Factory button (Tognazzini)
No memorization involved please (Schneiderman)
Hotkeys for more efficient and accurate adjustments (Focus Group 2)
The real focus of the groups wasn’t so much to help develop the criteria but to get more than one perspective on the televisions being evaluated. The flaw with simple criteria evaluation is criteria are normally subjective to the designer and they also can’t predict every eventuality. In a field like interface design criteria can be very limiting if a designer doesn’t include the feedback of the users.
The anticipated outcome of the study is that there will be no television menu system that has an effective user friendly design. Sony has won design awards for their menu system on the Playstation 3 and appropriated that to their televisions. John Maeda works for Philips and helps design the company’s motto and products so we may see some unanticipated results from these groups. The Best Buy in Lynnwood is where these focus groups studied the televisions on Tuesday the 27th (focus group 1) and Sunday 25th (Group 2). Here is how the televisions performed.
Part II Danger Malfunction
LG had a very simple interface on the remote control which gave many of our users hope. For the expert users this posed very little trouble in operating but as explained below it took too long to enter the picture menu. The inexperienced users had trouble as soon as they opened up the menu. The Term EZ Picture is meant to indicate that the picture menu is very simple to adjust and you don’t have to do any work, but if there was only one setting a user wanted to adjust they would find it very difficult to do so. The adjustments are static on the EZ picture setting of Daylight and you have to change it to “User” in order to begin changing settings. When given the task “adjust the contrast” the users didn’t see that term for several minutes as they struggled with finding the place that this term was hidden. Once they found out how they could adjust the television it was difficult to verify exactly what the unadjustable settings on daylight were so you could change only the contrast. LG failed on the basic first level of not having clear terms.
Pioneer and Panasonic have similar flaws when you open the menu up, it is easy to get to the picture menu but once you’re there it might be impossible to do anything you want to. The term Picture was in the menu and there was no real clue to what that might adjust because as you take it down from +30 to -30 the television itself looks relatively unchanged. It certainly doesn’t reflect Contrast shifts and contrast isn’t even on the menu. Brightness is present but has nothing to do with the contrast and there are many terms and abbreviations that are simply scary like Mosquito Noise Reduction, does this reduce the amount of mosquitoes that are attracted to the glowing television? The adjustments are unclear due to a lack of understandable standard for normal and the terms are ridiculous.
Sony has wonderfully descriptive pictures that nobody understood. The pictures are there and definitely indicative of what they could mean but they are also too similar to each other to understand. On top of that the actual item that is shifted is beneath the one that is highlighted so the second focus group had no idea how to actually get to the picture menu which wasn’t immediately apparent. Once there Sony had very unfamiliar terms and adjustments and some very familiar ones but the menu had little explanation. Once it was used the first time, it was easy to understand how to navigate but it didn’t promote ease of use and as mentioned previously the pictures were similar in meaning, if not in look, so you could forget which setting was where very easily.
Toshiba had very easy to understand menus at least until given more advanced tasks. Basic contrast adjustment terms and adjustments were pretty clear… but there was not a huge degree of response to the adjustments. Toshiba had a special Colormaster adjustment panel when it allows you to adjust the Hue, Saturation, and Brightness of each of 6 colors individually in the television set. The problem with this menu is that the inexperienced users had no idea how to use it so if something was incorrect about all they wanted to do was “Reset to factory” which was clear and there. The experienced users wanted to make the image look better and more natural than the factory but the adjustments didn’t seem to affect almost anything at all unless all three were completely turned up to the maximum so they felt like it was a futile attempt to make the TV more versatile. It seemed like there was a bar of the color on display so you could see how you adjusted it but it was set to display at far too bright of a level to begin with so it was extremely hard to measure the adjustments since they started at 0 and went positive or negative to equal degrees.
Samsung was pretty much the friendliest to the expert users. They used older standards that are common on computer monitors to indicate brightness contrast and other settings. When they had abbreviations they had it written out in a small status bar beneath the menu so if you were an expert user you could really understand everything and adjust it very quickly. The menu opened up and the first setting is picture so it was super simple. To the novice user it wasn’t as easy, they didn’t understand the various terms even when they were unabbreviated so it was slightly limiting as there were no explanations. However the settings and tasks were easy to complete and any basic adjustment was quick the only problem was it required you to actually hit enter to adjust a given setting and some people used that intuitively and some didn’t. This was a low cognitive load error and didn’t strain the user enough to make them hate the menu.
Philips pretty much won as far as fulfilling all the criteria. There really isn’t one topic among the list that they didn’t excel at. The basic menu was set up purely with words which would create a language barrier but this is something that based on the country or user preference is adjustable. We are assuming that this isn’t a design flaw because of the specific intentions of menu adjustment can permit for words to be used in native languages. The Philips went beyond basic descriptions and allowed users to understand terms they were unfamiliar with by having it explained at the bottom of the screen and what it would affect. The explanation was located out of direct sight so it wouldn’t affect the expert user. The only complaints the expert user had was that it took more than 3 selections to get to the picture menu and when you pressed menu which normally functions as a step backward button it completely closed the menu. For the novice user there was pretty much no issue the menu familiarized them with selecting items to the point that by the time they got to adjustments unlike the Samsung it was already normal to press enter to adjust the item. There was not one person who had trouble using this menu system to adjust the contrast. Further more there was a very clear example of what the contrast would be adjusting as it removes the rest of the menu and displays the screen and the contrast alone at normal brightness while you adjust the setting which was actually surprisingly uncommon among the menus.
The project results were unanticipated but very logical. Many of these principles can be found in the course textbook that we have been using and it stands to reason that Maeda would have made sure to have a design team on the TV menu that many others would neglect. If improvements could be made it would be to further the standards of television menus by including pictures next to the words the same way the Samsung TV menu did them and have a quick access hotkey for expert users on the remote. Overall the Philips Menu system was exceptional and a quote from one of the group two participants sums up the menu accurately: “I really like the descriptions for the terms on the Philips because if I owned this television I would probably, eventually, adjust all the settings on the TV to my preferences because I wouldn’t have to read a manual.” Low cognitive load means that someone is going to take advantage of an interface and use it to its complete potential.
Works Cited
Focus Group #1 Participants: Andrew Mariott, Magnus Gordon, Ryan Proctor, and Seth Gordon.
Focus Group #2 Participants: Clark Summers, David Keith, Joe Luther, Miryam Gordon.
Maeda, John “The Laws of Simplicity Simplicity: Design, Technology, Business, Life”, MIT Press, 2006.
Nielson, Jakob “Heuristics for User Interface Design” 2005 http://www.useit.com/papers/heuristic/heuristic_list.html, Last Accessed: 12/03/07.
Shneiderman, Ben “Eight Golden Rules of Interface Design”, http://faculty.washington.edu/jtenenbg/courses/360/f04/sessions/schneidermanGoldenRules.html, Last accessed: 12/03/07.
Tognazzini, Bruce, “First Principles of Interaction Design”,
http://www.asktog.com/basics/firstPrinciples.html, Last accessed: 12/01/07.