What is GIS service availability?

Availability in GIS means map services, APIs, and data are reachable for users when needed, with minimal downtime. High availability is crucial for operational processes such as incident handling, crisis management, and fieldwork.

Factors: server uptime, redundancy, load balancing, monitoring of WMS/WFS endpoints (for example PDOK), and failover. SLAs often specify percentages (99.5% or higher).

Availability is not the same as data quality or security. A service may be online 24/7 but show outdated layers; conversely, current data may be temporarily unreachable during maintenance.