- Business Architecture
Commercial model, process model, organisation mode
- Technology Architecture
Application mode, infrastructure model
- Data Architecture
Data models, information products
The concept of a 'GIS System' is starting to evaporate as spatial facilities emerge within other components. Databases (e.g. Oracle, SQL Server, MySQL, Postgis) and data formats (e.g. GML, GeoPDF) are rapidly maturing and are available for use by a much wider community than the traditional 'hard core GISers' and thus we are starting to see components of the IT stack become spatially-aware. This is the natural evolutionary path for GIS and is the model that we should be designing for. As these technologies mature I think it is important that the Enterprise Architects and IT Architects are aware of the current and emerging opportunities, and limitations, afforded by spatial technologies.