When developing any web based application is pays to know exactly what your browser can do. If your developing an internal application you can make sure you maximise the website to what the browser can  support, this is Nirvana (provided the internal browser isn’t IE6, which in this case is usually is) just make sure your aware of any upgrades to the browser on the network and test early! If your working in the more common heterogeneous environment that is more common on public facing sites then understanding which browsers your going to have to support for your application is fundamental as this...

There has been a long standing rule of thumb when deciding how many instances to give a map service to give optimal performance. Finding this information has sometimes been hard although surprisingly when asked for this information the other day, and failing to find it, I decided to see if it was on the new resource centre. Fortunately the is a page on services performance. http://resources.esri.com/enterprisegis/index.cfm?fa=performance.app.services Here it not only gives the ‘rule of thumb’ for the number of instances for a map service (2.5 * #CPUs) but also a whole series of information about...

If, like me, you have been developing internet mapping and GIS applications for a few years (twelve odd in my case) you can see how easy it can be to develop applications to do exactly what you want to do. You can design, architect and deploy all sorts of solutions to fit into you business or integrate into your enterprise systems. It should be understood though that in the world of GIS (can we still call it that in this neo world?) most people aren’t developers or architects, they are analysts or planners or engineers that might want to share the information and maps are creating in their...

It seems in this increasingly twitter fuelled world that anyone starting a blog must be certified. Surely the world can’t read more than 140 characters anymore, why bother making them? Well always one to buck the trend, I thought it might be a good time to start a blog. Hmm a blog, what should it be on? ArcGIS, nope plenty of those, Programming, nope loads of those also. GeoNerdRage? Nope I can name a few of those also So in order to start this blog I decided on the theme of performance and scalability, the architecture of such and the technologies that can help people design and develop...