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What "They" Don't Tell You About WAB-to-ExB Migration
Wednesday May 20, 2026 3:00pm - 3:30pm PDT
401-402
Modernizing a complex, long-lived GIS application is harder than it looks on paper. King County's iMap has served residents and agencies for years, and rebuilding it on ArcGIS Experience Builder Developer Edition meant confronting real challenges that go well beyond swapping frameworks.

In this presentation we will walk through the real obstacles we encountered and how we navigated them. Along the way, we filled gaps in ExB's native capabilities with custom widgets developed through an AI-assisted workflow, including open-source tools from the MapSimple project that are now running in production.

We'll share the process, the tradeoffs, and the practical techniques we developed along the way, with iMap as the case study that ties it together illustrating what it truly takes to modernize a mature GIS system.
Speakers
HK

Harkeerat Kang

GIS Engineer, King County
Harkeerat Kang is a GIS professional with over 25+ years of experience working in public sector. Her focus mostly has been on designing, implementing, integration of systems, application development and solution architecting.
avatar for Adam Cabrera

Adam Cabrera

Map and AI Whisperer, MapSimple
Adam Cabrera is a GIS professional with 30 years of experience spanning the full arc of the industry, from command-line tools to modern web frameworks. He serves as Geo Engineering Manager at the King County GIS Center, where he leads a team building public-facing geospatial appl... Read More →
Wednesday May 20, 2026 3:00pm - 3:30pm PDT
401-402
  Technology, ExB

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