Hearing Evidence Mapping Application: The Evolving Life Of Harris County Appraisal District's Collaborative Custom GIS Application

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01-09-2018 01:43 PM

Hearing Evidence Mapping Application: The Evolving Life Of Harris County Appraisal District's Collaborative Custom GIS Application

The Hearing Evidence Mapping Application was first developed in 2013 and was created to assist agents, owners and appraisers in protests and hearings. In the beginning the application (HEMA) was programmed in Classic ASP using VB, JS, HTML, and CSS to display and handle basic queries involving only two sales layers which were populated by SQL stored procedures. The two layers were displayed upon a map and mirrored the sales information provided in the hearing evidence pdf packets created for each protest. In 2016 more layers were added and the number of SQL SP's referenced were doubled. In 2017 additional filters and search widgets were included. Along each step of the way team leads from Residential and Commercial groups closely worked with GIS developers to ensure each modification and addition were designed for the best interests of the end users. In the middle of 2017 the decision was made to migrate the application to ASP.NET and C#  in order to handle the increasing work load and stress (over 330,000 hearings in 2017) that was being placed upon the platform by all of the additional layers and queries.

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‎01-09-2018 01:43 PM
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