10 November, 2010
These are the slides from the presentation that I gave to the BCS Geospatial SG.
The talk abstract is:
Here is a useful party trivia: as a form of human communication, maps pre-date text by thousands of years – some early spatial depictions are 25,000 years old, whereas writing emerged only 4000 years ago. When it comes to computing, the reverse is true: the first wide use of computing is from the early 1950s, whereas the first effort to create a GIS only started in 1966. There are good reasons for this, chief among them is the complexity of handling geographical information in digital computers. An adverse impact of this challenge is that for many years geospatial technologies developers focused on functionality and not on the interaction with end-users. The result of this focus is that while word processors and spreadsheets became popular in the early 1980s, only with the emergence of ‘Web Mapping 2.0′ in 2005, GIS and geospatial technologies became more popular, albeit far from universally usable.
The talk covered interaction and user aspects of geospatial technologies, pointing to issues that permeate the usability and usefulness of geographical information itself (e.g. why ESRI shapefile is a popular format despite its drawbacks?), the programming of geospatial technology (e.g. why OGC WMS did not spark the mashup revolution, while Google Maps API did?) and the interaction of end users with desktop and web-based GIS.
And the talk happened at the same day in which the excellent Third Workshop on the Usability of Geographic Information was running at the Ordnance Survey.
8 October, 2009
At the end of September, the manuscript of ‘Interacting with Geospatial Technologies’ was submitted to John Wiley & Sons. This is the reason for the silence on this blog since July while the final chapters were written.
The book, which is an introduction to usability and Human-Computer Interaction aspects of GIS and other geospatial technologies, was written because there is no other recent book that covers these aspects while taking into account the special characteristics of geographical information and the extensive use of maps.
There were several books in the early 1990s dedicated to human factors of GIS or to cognitive aspects of these systems. Since then, there have been many published articles, but no easy-to-access summary of the outcomes in a way that is useful for developers or people who want to understand how to design more usable systems. So, while working on a paper that called for developing ‘usability engineering for GIS’ in 2005, I figured out that, actually, it was time to write an introductory text in this area. In the end, this is an edited textbook written by me together with a group of excellent collaborators: Jochen Albrecht, Clare Davies, Catherine Emma Jones, Robert Laurini, Chao Li, Aaron M. Marcus, Stephanie L. Marsh, Annu-Maaria Nivala, Artemis Skarlatidou, Carolina Tobón, Jessica Wardlaw and Antigoni Zafiri.
So the book provides an introduction to user-centred design and usability engineering from a geospatial technologies perspective, theoretical aspects of human understanding of space and collaborative systems, practical aspects of cartography and map design that are useful for developers and application designers, guidance for evaluating geospatial systems and some tips for designing desktop, Web and mobile based systems. Each chapter includes case studies and examples that make the material more concrete.
The book is scheduled to be out by March 2010. A lot of work went into writing the various chapters and ensuring that the content is covering all the needed elements to create a usable GIS – I hope that it will be useful!