MapGIS 5, 9 and 10: versions, architecture and evidence
What public sources establish about MapGIS Flex 3, MapGIS5, MapGIS9 and MapGIS10, and how to assess an implementation before renewing or migrating.
GIS
Everything filed under GIS.
MapGIS vs QGIS and PostGIS: a Colombia comparison
What an organization is actually comparing between the MapGIS suite and an architecture with QGIS, PostGIS, services and open viewers. A layer, cost and workflow matrix.
6 ArcGIS-to-QGIS migration cases: real savings and limitations
A comparison of six public-sector GIS migrations: which savings were reported, which were projected, what was reinvested, and which figures remain unknown.
ArcGIS to QGIS/PostGIS migration costs in Colombia (2026)
How to calculate the total cost of moving from ArcGIS to QGIS/PostGIS in Colombia, including support, infrastructure, training and documented cases.
Sentinel-2 vs Landsat: which to choose for your project in Colombia
Two free constellations, two different logics. We compare the resolution, frequency, bands and historical archive of Sentinel-2 and Landsat, and explain when each one fits —and why the answer is often to use both.
Digital elevation models: DEM, DTM and DSM — differences, sources and when to use each in Colombia
DEM, DTM and DSM are not synonyms. This guide clarifies the difference, reviews the sources available for Colombia (SRTM, COP30, ALOS, LiDAR) and explains when each model is the right choice.
Land use change analysis with QGIS: a practical guide for Colombia
How to measure land cover and land use change between two dates with QGIS and Sentinel-2: classification, transition matrix and change map, with Colombian data.
ArcGIS or QGIS for government in Colombia: 2026 decision guide
Decision framework for choosing between ArcGIS and QGIS in Colombian government agencies. Costs, LADM-COL, migration, and real cases.
QGIS: Basic Tutorial for Government Geospatial Projects
Practical introduction to QGIS for government staff. Installation, data loading, visualization, spatial queries, and publishing with GeoServer.