From the Desktop to the Web! Creating a “Single Source of Truth” with SuperMap and PostGIS

The ultimate value of GIS data lies in transforming it from a tool used exclusively by specialists into an information platform accessible across an entire organization. The key to achieving this is seamless integration between desktop GIS, databases, and Web GIS servers.

In this article, we introduce how to build a centralized workflow using PostGIS as a database, and publish data edited with SuperMap iDesktopX as web services through SuperMap iServer and SuperMap iPortal.

1. The Importance of a Single Source of Truth

Have you ever struggled with multiple copies of similar data circulating within your organization, without knowing which one is the most accurate or up-to-date? When departments manage separate versions of the same data, updates are often missed, inconsistencies arise, and decision-making is compromised.

The solution to this problem is establishing a Single Source of Truth (SSOT)—centralizing mission-critical data in a unified database such as PostGIS, and building a system where all applications—desktop, web, and mobile—reference this single authoritative dataset.

2. Seamless Integration from Desktop to Web Publishing

The SuperMap platform makes this ideal workflow easy to implement:

1）Data Preparation (iDesktopX)

Create maps and 3D scenes in SuperMap iDesktopX, referencing data stored in PostGIS, and save them as workspaces.

2）Resource Registration (iPortal)

Register the created workspaces in SuperMap iPortal, which acts as a catalog for organizational GIS resources—making available data and maps visible across teams.

3）Service Publication (iServer)

SuperMap iServer reads the workspaces registered in iPortal and publishes them as standardized web services, such as WMS and WFS.

The advantage of this architecture is that when data in PostGIS is updated via iDesktopX, changes are reflected in web services almost in real time, preserving data integrity. This ensures everyone in the organization always uses the most accurate information for analysis and decision-making.

3. Microservice-Oriented and Highly Scalable

The clear division of roles—iPortal as a resource catalog, and iServer as a service execution engine—embodies a modern microservices-oriented architecture. Unlike traditional systems that concentrate all functionality on a single large server, this approach enables flexible scaling and a more robust GIS infrastructure.

The integrated platform of SuperMap + PostGIS provides a modern, powerful solution that eliminates data silos and maximizes the value of GIS across an entire organization.

Source: SuperMap Japan https://supermap-japan.blogspot.com/2025/10/websupermappostgis.html