Esri's Open Vision promotes open standards, data interoperability, open data and open APIs, code and the community. ArcGIS software is designed as an open platform that's flexible, interoperable, reliable, constantly evolving and encouraging innovation that helps you achieve your goals.
Understand Esri's approach
Since its foundation in 1969, Esri has pioneered the development and evolution of geographic information systems (GIS). See Esri's approach to making the ArcGIS platform open.
A modern platform
ArcGIS supplies real-time, reliable information when you need it most. A modern platform that is configurable, flexible, scalable, customisable, deployable, and interoperable.