Logo for LED Street Light

LED light is becoming more and more commonly used in household and public area, replacing the traditional florescent and sodium vapor based lighting systems. LED is energy efficient, bright and long lasting. With these many advantages, many cities are trying to promote this technology for a wider adoption. The picture above is a street light installed near Kawasaki JR station.

However, there is currently no international standard logo for the LED lighting technology. The most commonly seen logo so far is the 3 English alphabet “LED”. It is still a new territory for designers to come up with something that can communicate the concept and technology. For this street lamp near Kawasaki station, the designer attempt to do so by using 7 circles in a radial arrangement. Can you get the idea from the logo?

Bowing in Signage – Do You Accept My Card Or Not?

What message to you perceive when you see a person bowing at you?

The meaning of bowing is quite significant in eastern culture, and especially important in Japanese daily life. Depending on the context, bowing could mean apology (when you bump into someone), appreciation (after you made a purchase from a store), and greeting (equivalent to saying hello and good morning). In the company I work that, for example, we often have meetings with guests and clients. When the meeting is done, our team would walk the guests to the elevator door and wait for the elevator with them. Once they stepped into the elevator, all team members will make a bow at the guests until the door closed. That is to show deep appreciation and good business manner.

But here is a challenging scenario I encountered one day when having lunch in a Japanese beef bowl restaurant YOSHINOYA. Near the cash register, there was a sign with an illustration of a staff bowing with a smile, some Japanese text and then logos of two popular NFC payment card “WAON” and “Suica”. Let me explain why I think the signage design could be confusing, especially to foreigners who cannot understand Japanese:

Full Body Gesture — it is pretty clear that the illustrated character is doing a bow at person who’s reading the sign, there’s no ambiguity about it. However as mentioned before, bowing could mean appreciation or apology.

Facial Cue — this one is subtle to pick up but important nonetheless: on the face of the character we could easily identify the eyes in the upper part of the face; however what is that curved line below it? It is a smile, or is it a nose where the character is now bowing with his/her head down?
(a) If the line is a smile, then the character could be making a pleased facial expression, indicating that the the subject of sign is to thank you for using the indicated payment methods.
(b) If this line is the nose otherwise, then the character is making a large head dip which ressemble a deeper bow. That can be interpreted as a big apology and further understood as “we do not accept the payement methods”.

Japanese text — obviously, to those who cannot understand Japanese, this instruction would have no use in explaining the message.

Logos at the lower right corner of the sign there are two logos of the payment systems. The logos are neutral and don’t convey any information of the acceptance of the payment methods.

Answer: 「当店ではWAON、Suicaはご利用いただけません。ご了承こださい」(meaning: this store does not accept WAON and Suica cards. We appreciate your understanding.)

My Suggestion: stick to international standard to indicating “No”. It’s boring but it works.

Location Icons – Which One Makes Sense to You?

Many smartphone apps are using built-in GPS in the device to track user’s location as part of their features. Naturally, when designing the user interface of such apps, designers has to communicate the location awareness using icons and visual controls. However, there seems no one universally agreed upon pictogram to convey such idea, so many designers come up with their own design for that. After a bit of research, I found 4 commonly used pictograms that are being used by various location aware apps on iPhone.

A. Rifle Sight — looks like a metaphor related to rifle shooting. I’m guessing that it is originated from the North American with tradition of hunting wild animals.

B. The “Google” Tag — my first impression of the tag is from Google Maps. To me, this icon indicates a tag of a place, rather than an accurate coordination.

C. A Pointer — seems originated from the map “Pointer to North” orientation marker. Now it is the official GPS icon on the iOS status bar. The icon is suitable for showing the active/inactive state of the GPS feature.

D. Pin — also used by Google Maps, especially the iOS native version of Maps. A pin is a metaphor that is more commonly seen in our daily lives – pinning something on a cork-board, or putting a pin on a map. However, Some apps also use the “fastening something in a specific location” metaphor for the toggle button that keeps an auto-hide object on screen (disabling auto-hide). For example, some desktop apps for MS Windows has such UI. Use with caution and don’t confuse your users.

My Take

If I have a project that utilizes the GPS, my preference for the UI elements would be C (Pointer, indicating the state) and D (Pin, pin-pointing a coordination on map) depending on the situation and the usage.

A potential follow-up with this idea is to set up an online usability tests with the pictograms. If you are interested in doing so and would like to use my visuals, please feel free to contact me.

Designing “Do Not Disturb” Sign for 100,000 Years

How would you communicate the message “Do Not Disturb” to your future generations, warning them that this place is storing something that is extremely harmful to human and other living creatures, and that must be stored and remain undisturbed for tens of thousands of years?

After watching “Into Eternity” (official site / Japan official site), a documentary movie about constructing a permanent disposal site for spent nuclear fuel that must last 100,000 years, this question caught my attention. The disposal site, by design, must function without human intervention and maintenance, and should be left alone for 100,000 years for the radioactive material to decay. We build this repository to keep you and your future generations safe. The design team, however, identified that the most unstable feature that might jeopardize the protection function of the repository, is ironically human himself.

According to a design report from the WIPP Exhibit: Message to 12,000 A.D. the design must satisfy the following criteria:

  • The site must be marked. Aside from the legal requirement, the site will be indelibly imprinted by the human activity associated with waste disposal. We must complete the process by explaining what has been done and why.
  • The site must be marked in such a manner that its purpose cannot be mistaken.
  • Other nuclear waste disposal sites must be marked in a similar manner within the U.S. and preferably world-wide.
  • A marking system must be utilized. By this we mean that components of the marking system relate to one another is such a way that the whole is more than the sum of its parts.
  • Redundancy must play a preeminent role in the marking system design. The designs considered here have redundancy in terms of message levels, marking system components, materials, and modes of communication.
  • Each component of the marking system should be made of material(s) with little intrinsic value. The destructive (or recycling) nature of people will pose a serious threat to the marking system.
  • The components of the marking system should be tested during the next few decades while the WIPP is in operation, not only for the longevity of the materials but for the pan-cultural nature of the message. In other words, as with the repository design itself, the team was comfortable with the thought of designing a marking system that would last 10,000 years if left undisturbed. Our efforts focused on making it understandable while providing minimal incentive to disturb it. We also consider a public information effort a necessary part of the marking system design. A system that is not understood today has no chance of being understood in the far future.

In addition to the criteria described above, varies interviewees are also concerned about the following human factors:

  • war and political landscape can change the countries above ground in matter of few generations. That is very unpredictable.
  • economic downturns may make it financially difficult to maintain the disposal facilities.
  • what we consider waste now may be conceived as valuable in the future, whether it is based on full understanding of radioactive energy, incomplete knowledge (lost knowledge and misunderstanding), or mis-interpretation as religious item.
  • the future generations will not share the same sense, appearances, language, knowledge and needs, as we do now.
  • scientists predict that there will be another ice age in 60,000 years. By then, everything above ground such as vegetation and human artifacts will disappear. Whether human race will be able to survive the period or not, the markers must survive it and be able to communicate the message continuously.

One important point that I’ve learned from the discussion about designing the marker is that, instead of focusing on designing the message and then develop a medium/vehicle to contain the message,

…McLuhan and Fiore [Ref. 2-1] take that even further, arguing that “the medium is the message.” Given this, rather than our attempting to first articulate messages, then to select their form, and then to design their vehicle, we choose to do as much of this simultaneously as is reasonable, attempting to accomplish

Gestalt, in which more is received than sent,

Systems Approach, where the various elements of the communications system are linked to each other, act as indexes to each other, are co-presented and reciprocally reinforcing, and

Redundancy, where some elements of the system can be degraded or lost without substantial damage to the system’s capacity to communicate.

This is, by far, the most challenging design requirement that I have ever seen. Without relying on text, language and symbol that are developed in our civilization, the few options left are “feeling” and “emotion“. Some designers came up with some solutions using architecture, geometry to comunicate such abstract entities. Here are some of the better developed ideas:


Figure 4.3-4. Spike Field, view 2 (concept by Michael Brill and art by Safdar Abidi).


Figure 4.3-1. Landscape of Thorns (concept by Michael Brill and art by Safdar Abidi).


Figure 4.3-14. Forbidding Blocks, view 1 (concept and art by Michael Brill).

The Ultimate Design — Death

Dispatch the ethical argument, perhaps the most effective marker material is Death. In his remarks of personal thought, Woodruff Sullivan express his view that:

We have all become very marker-prone, but shouldn’t we nevertheless admit that, in the end, despite all we try to do, the most effective “marker” for any intruders will be a relatively limited amount of sickness and death caused by the radioactive waste? In other words, it is largely a self-correcting process if anyone intrudes without appropriate precautions, and it seems unlikely that intrusion on such buried waste would lead to large-scale disasters. An analysis of the likely number of deaths over 10,000 years due to inadvertent intrusion should be conducted. This cost should be weighted against that of the marker system.

All illustrations are citied from WIPP.

Pumpkin Seed Eating Instruction Comics

I was back to Hong Kong last week for the UXHK conference and brought back some local snacks for my Japanese colleagues. One of them is Roasted Pumpkin Seed (瓜子) which is a common delicacy usually served during the Chinese new year. The hard shell is inedible, so without any tool people usually just bite open the shell with their front teeth and eat the white heart of the seed.

However, since most of my Japanese colleagues had never tried such local food, it’s necessary to tell them the proper way of consuming it. In order to avoid confusion and potential danger of somebody choked by the seeds, I decided to sketch the following instruction note:

To my surprise, everybody forgives my broken Japanese and gets the idea of eating the pumpkin seed almost immediately. It’s tricky, but at least nobody was hurt. I was relieved.

My Thoughts

Comics has become increasingly popular and commonly seen in websites, especially in those complicated web services where plain words is almost a sure failure for non-techy users to follow. One example is Google’s Chrome Browser Comics, where the dev team tries to explain some pretty technical concepts, such as sandboxing and malware prevention, with the use of comics.

Book: See What I Mean

There are increasing interests in using comics for usability applications and a legitimate communication tool for projects and business environments. Usability Publisher Rosenfeld Media is teaming up with Kevin Cheng to publish See What I Mean – HOW TO USE COMICS TO COMMUNICATE IDEAS, a book that is dedicated to using comics as a documentation and communication tool in usability. From the introduction:

In See What I Mean, Kevin will walk you step by step through the process of using comics to communicate, and provide examples from industry leaders who have already adopted this method.

About Calvin

Hello there, I’m Calvin Chun-yu Chan. Grew up in Hong Kong, studied and worked in Canada as web engineer+designer, now designing mobile apps in Tokyo. On my blog I would like to share my opinions on design, usability, culture and creativity.

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