Posts Tagged ‘function’

Bad design: Fresenius Applix Smart food pump

Friday, December 5th, 2008

Fresenius food pump

The Fresenius Kabi Applix Smart food pump is a masterclass in bad design. There is nothing smart about this food pump and its accessories. It has been designed without taking into consideration the context in which it is to be used. Consequently, some of its accessories are not just safe enough to used around patients and the home and could lead to the compromise of patient safety.

When designing any form of interface, a usability consultant will push for the interface to be: effective and efficient; easy to learn and remember; useful and safe.

After usability comes user experience (in this medical context perceived user satisfaction is enough, as it is never going to be fun to use a food pump on a chronically ill person) which encourages users to feel supported and motivated by a helpful interface.

Fresenius Kabi has failed the user of the Applix Smart food pump on usability and user experience. (more…)

Human-computer interaction: Can you see what it is yet?

Thursday, June 21st, 2007

check out the video of this interface on ted.com

The recent furore over the 2012 Olympics Logo reminds me of how people react to the user interfaces they find on everything they interact with, from websites to washing machines. If an interface, like a logo, is well-designed, no one notices or mentions it. If it is difficult or unsightly, people complain loudly and when given a choice, won’t use an interface they don’t like. Interaction designers, like IT support staff, are never thanked when all is well and severely criticised when interfaces cause users problems. (more…)

Function-behaviour-structure for website design

Tuesday, May 15th, 2007

screenshot of summertown solutions ltd

So, you have decided to create your own website. You have read all the latest articles, bought a domain name, and now you are staring at your holding page wondering what your website is for and what you should put on it.

Never fear, function-behaviour-structure (FBS) theory can help. FBS is a popular artificial intelligence design theory and like all good fairy godmothers, it will answer your three questions:

  1. Function: What is the purpose of your website?
  2. Behaviour: What will your website do?
  3. Structure: What structure will your website take? (more…)

The eight tasks in an artefact lifecycle

Thursday, April 5th, 2007

full image at http://www.sumsol.co.uk/schema.pdf

A bridge, building, or piece of software may exist for many years. Or, as often happens in the case of new software, be scrapped before it is put into use. My mate Wayne, a professional software developer for over 12 years, has worked on several projects which were canned before they were completed. In a world of ever changing requirements and circumstances, ‘it’s not unusual’ as Tom Jones would say. Software development can take months, even years of effort, so scrapping the results is a waste. To counteract this, we have libraries for software reuse, design patterns and templates to avoid reinventing the wheel.

But why just reuse the product template or pattern? Why not template the tasks the artefact underwent during its lifecycle? By extending the theory of function, structure, and behaviour, there are eight tasks in an artefact lifecycle. (more…)

Design using function, behaviour, structure

Tuesday, March 27th, 2007

ENglish Heritage pic of Rievaulx Abbey

Last month, at the Architectural Association, Bill Hillier described how English Heritage often want to reinstate the paths and roads of the historic sites they are trying to preserve. Hillier argued that these sites need new pathways as the way people interact with them now is not the same as when they were built. One example of this is Rievaulx Abbey. It was once a place where monks lived and worshipped, until Henry VIII dissolved the monastries to get his hands on their money.

Today, Rievaulx is a tourist attraction, which is occasionally used as a place of worship and the change in its functionality is reflected in the pathways around it. They can be described as paths of desire, which have come about because visitors wander across the grass or clamber over a wall to get to a specific part of the abbey instead of walking about retracing the routes the Cistercians may have used, which would give visitors a better insight into the way the abbey and its inhabitants behaved. (more…)