Galdos Systems offers a collection of resources for learning about GML, XML, and web services, and about the geospatial industry and location-based services, as well as other articles of interest.

Ron Lake’s Blog

Galdos chairman and CEO, Ron Lake, maintains a blog about all things GeoWeb and GML. Posts may be about specific aspects of GML, such as geometries and coordinate reference systems, or may be of general or philosophical interest about the GeoWeb in general or about leveraging the GeoWeb to manage urban infrastructure challenges.


The articles related to the GeoWeb and the geospatial industry are some general resources of interest. Galdos links to or republishes articles of interest from newspapers or industry magazines.


Perspectives is a collection of resource content that provides additional information about various industries where Galdos products and solutions have been deployed.

Open Standards

Galdos Systems helps with the development of open standards, working with the submitting organization to standardize data structures and code lists, and assisting with the process of getting the result published as a standard. Galdos is one of the creators of the Geography Markup Language (GML), an OGC specification and an ISO standard that is an XML grammar designed to express geographical features. This article provides an overview and introduction to GML.