GDM Solutions
Providing an Industry Standard Software for Research

Create Protocols. Manage Trials. Report Findings.

GDM creates, markets, and supports ARM software for managing and summarizing agriculture research experiments.
  • ARM saves time creating trials, analyzing data, and producing the many reports required for successful and timely trial management.
  • ARM is a recognized and respected standard throughout the crop production and protection industry.
  • ARM is used by thousands of researchers in nearly 100 countries worldwide.


ARM Software Webinars

Join us on hour-long training sessions on a variety topics, whether you are new to ARM or have used the software for years!

April Webinars: ARM & More

Our next set of webinars for 2021 focus on trial setup and introduce two ARM add-ins to extend the capabilities of the ARM system! The Tablet Data Collector (TDCx) is the professional data entry tool to bring ARM to the field, while Summary across Trials analyzes multiple trials, across locations or years.
Check out this flyer for additional details. Each session is held at 10 AM US Central.
Collect Data with TDCx - Thursday, April 8
Summary across Trials (ST) Basics - Thursday, April 29
ST Basics: Part 2 - Thursday, May 6

Labels and Barcodes in ARM - Thursday, April 15
Trial Map Randomization - Thursday, April 22
Uniformity Simulations to Evaluate Trial Randomization Quality - Wed., May 12

GDM Office Hours

Our experts are available to answer as many of your questions as we can fit into one hour! Every week, Peter Claussen leads the statistics-themed Q&A session, while Matt Elsinger tackles any other ARM-related questions.
Register once to get the Zoom link, and drop in any week to ask or listen to questions!
Statistics Office Hours - Fridays at 9 am CDT
ARM Office Hours - Tuesdays at 10 am CDT


Update to ARM version 2021.0

Run Check for Updates to download the latest version of ARM today!
See ARM 2021 Release Notes for new features and fixes.

Highlights include updates to ARM report functionality:
  • Bring analysis from Column Diagnostics into your reports
    Tests for assumptions of AOV (Skewness, Kurtosis, Levene's) now use residuals on the AOV, just like on Column Diagnostics.
    You can also include the diagnostic graphs with the report.
  • New & updated calculations
    • Automatic transformations on subsample data now applied to the plot mean, not individual values.
    • Display the arithmetic mean on your report to supplement the analysis.


Learn ARM with our Training Portal

Improve your skills or learn ARM for the first time with our ARM Academy training portal! Watch tutorial videos at your own pace to earn certification and a greater understanding of ARM software. 
New employees can quickly get up to speed with ARM by taking the Getting Started with ARM course. This two-hour course introduces the basics of the software, readying you for the first research season with ARM and certifies you as an ARM Beginner. This can also be a great resume booster for students!
For those with experience in ARM, check out the Staying Current courses. This series demonstrates the past year's updates and changes in the software. The first course covers the 2020.x versions of ARM, certifying you as ready for the 2021 research season (as least as far as ARM is concerned!)


ARM Product Pulse

Your source for the latest ARM updates and best practices


GDM publishes the ARM Product Pulse newsletter every quarter with current topics and tips for using GDM products.
This quarterly newsletter highlights new features in ARM and helpful tips to address common questions from ARM users.
Check out the newest issue here:
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