Internet. Tecnología. Personas. Desde el 2001.

ping@seisdeagosto.com

Larry Tesler is a computer scientist with a strong background in Interaction Design. He´s been working for several decades at Xerox PARC, Yahoo!, Amazon and Apple Computer.

In 1985, while working for the MacApp object-oriented framework at Apple,Tesler came up with an interesting law called Conservation of Complexity. According to this statement every application have an inherent amount of irreducible complexity. Beyond a given point, simplification can´t be improved.

An example to understand Tesler´s law was given by Dan Shaffer in his book «Designing for Interaction«:

«For an e-mail message, two elements are required: your e-mail address and the address of the person to whom you are sending the mail. If either of these items is missing, the e-mail can´t be sent, and your e-mail client will tell you so. It´s a necessary complexity. But some of that burden has likely been shifted to your e-mail client. You don´t typically have to enter your e-mail address every time you send e-mail; the e-mail program handles that task for you (…). The complesity isn´t gone, thought – instead, some of it has been shifted to the software.»

But I think this complexity is just inherent to a period of time. Innovation technology is strong enough to overcome those complex situations we human are sometimes faced to. Complexity, when talking about technology, is just a question of time.

Bullet points, those little dots placed next to a sentence, are a powerful tool to communicate in digital environments.

Users unconsciously appreciate content organized in small slots of information. Bullet points (when used properly) give readers the joy of reading more efficiently.

From the side of the editor, writing content with bullet points force the writer to reduce the amount of information to be shown, forcing to re-think what is critical and what is less important.

Readers, on the other side, will pay more attention to content organized with this typographical resource. Our eyes are more willing to watch at this little dots than to the rest of the «straight» content. They seem to have the more important information.

FriendFeed bullet points
FriendFeed bullet points

Bullet points can be an important tool when launching a new product and explaining what is all about. Good examples of a well applied use of bullet points can be seen in FriendFeed´s homepage. Three «thumbnail bullets» explain what the service is about:

Tumblr´s home page
Tumblr´s home page

Tumblr is less explicit, and the hole service is explained using a block of text:

Tumblr suggestion
Tumblr suggestion

A different approach, using bullet points, could be this one:

No more than seven items:
According to George A. Miller´s «Magic 7» article (1956), number «seven» is almost universally accepted as the human capacity limit for a wide range of issues. This «law» also applies to the use of bullets: more than seven items reduce the power of communication in digital screens.

No less than three:
If you only have two bullets, maybe the right approach would be (again) to reduce those two lines into one single line. While two bullets are meaningful, three bullets are the perfect number.

2008 has been a hard year but, despite all the economical issues we are living, I have to say that this year says goodbye with a real happy feeling. This is the first time Índica writes a year recap, happy feelings provoque this kind of reactions…

2008 (Sept) was the starting point of my personal project: Seisdeagosto.com, providing Interaction Design and Consulting services. 2008 was also the year when this digital farm decided to try to write in English (July).

During this year we´ve visited the following countries: from Spain to Romania, Italy, Greece, Finland, Estonia, USA, France, Germany and Portugal.

Last november Índica made 4 years, with 279 posts so far. Below I´ve selected some of this year:

January

February

March

April

May

June

July

August

September

October

November

December

I just can´t stop thinking about the things 2009 will bring us. I think is going to be a challenging one. I also wish a challenging year for the loyal readers sometimes bother to read what we write here.

Happy 2009!

Juan.dieg0 gallery on Flickr

In Spain we still have around 60.000 phonebooths all around the country. They are all managed by the biggest Telcom in Spain and Latam: Telefónica. In their effort to make them useful, some ideas have come around like using them as pseudo-ATM´s or even as Wi-Fi hotspots (just as an idea, not implemented).

During my last visit to Finland I saw not a single working phonebooth all around Helsinki city. They´re all gone. Some fo them just remain as a symbol of a by-gone era:

Hugovk gallery on Flickr

Finland realized that this kind of urban furniture had arrived to the end and, instead of making efforts figuring out how to still make profit from them, they decided to impulse even more mobile phones´usage.

On dec 2008, you can get a quite confortable flat rate in your mobile phone at the price of €20 maximum. And, at the same time, you also get a mobile internet flat rate for €10 more. I coudln´t believe it when I heard this. They just assumed people are going to use mobile phones much more in the future and decided to offer rates at a decent/affordable/human price.

I don´t consider myself mobile phone-addicted, but I can perfectly pay around €40-€50/month, and this is excluding mobile internet conection… I have no idea about how much Telefónica expends every year trying to maintain this urban pieces, but I would bet that the money they could save throwing away this boxes could be reused to provide a better experience with mobile devices in terms of rates (still far away from satisfactory…).

Considering that in 2008 Spain was the leading country in Europe using 3G mobile internet (19.5% of Spaniards use mobile internet against the 6.9% of the rest of the EU) I think this is more than a good reason to change…

Repeat with me: To change! Come on, everybody: To change!

I love watching the activity of these working «Lemmings» when I am waiting for a flight connection at the airport. They just don´t stop working!

And, the more I see of them, the more I think they perfectly fit to this famous statement: «Form follows function«, one of the main principles of Bauhaus´s Design School.

They´re ugly, they look uncomfortable, they don´t leave any space for personal customization and, depending on the country you´re, they look a bit different, adapted to the local context they work with.

But, on the other side, their output is brilliant. They´re machines focused 100% on the activity. All the beautiful stuff has been forgotten. What remains is just for improving the outcome. They´re perfect for the work they´ve been designed for. To me they´re the best example of «just what you need and nothing else».

Sometimes I like to think that one of these days digital products will be like these airport vehicles…

A few days ago Dan Saffer published his last book: Designing Gestural Interfaces. A friend of Dan, Rachel Glaves, from Adaptive Path, helped him drawing some of the most common gestures for gestual interaction: Tapping, sliding, pointing, dragging, pinching, and spreading.

These drawings are now available for everybody. You can get the stencils for Omnigraffe (.zip), Illustrator CS3 (.zip) and Photoshop (.zip).

The interesting making-of can be seen in the following picture:

Full screen on Flickr. Enjoy them!!