Gylling Data Management, Inc.
Providing Research Software Solution Since 1982!


We at Gylling Data Management (GDM) create, market, and support 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 Tutorial Video series: Setting up a Protocol

Get started with ARM protocol files with our new video series Setting up a Protocol.
You can follow along as we demonstrate how to create a new protocol, describe its components, then dive into the most important features and tools related to protocol authoring.

ARM Products Pulse Newsletter

We have published the first issue of the new ARM Product Pulse newsletter (pdf), with current topics and tips for using GDM products.
You may have seen this handed out at recent exhibits that GDM attends, like the ICPP or ASHS annual meetings, or maybe you will catch us at an upcoming exhibit!
Receive the ARM Product Pulse in your inbox - subscribe to our newsletter today!

ARM now connects with Iteris ClearAg weather data

Iteris ClearAg weather content is now available by subscription to GDM clients!
Directly import ClearAg’s historical and current weather information and soil data from around the world through ARM software.
See Import Weather Data FAQ for more information, and Import ClearAg Weather Data video tutorial.
Request more information about ClearAg at:

ARM 2018 is now available!


ARM Maintenance Renewal

ARM version 2015+ includes a software maintenance plan, as described in ARM Licensing FAQ. Key maintenance benefits are:
  • All new software features are immediately available, delivered in the next update.
  • Software updates and upgrades are delivered automatically (including ARM 2018!).
  • Regardless of when you purchase ARM or ST, you receive all the newest software enhancements.
See ARM Client License Maintenance and Renewal (pdf) for an overview of the ARM maintenance renewal process.

ARM 9 and ST 8 are Obsolete

ARM 9 and ST 8 are obsolete and unsupported after 31 December 2016. Upgrade now to receive support.
  • ARM 9 licenses can be reassigned only when upgraded to the newest ARM version.
  • No support for questions or install problems.
  • Problems with protocols or trials created by an obsolete ARM version (ver. 9 or older) are not supported.
    Note: protocols or trials in .prt9/.dat9 created by supported ARM versions are supported.
  • Supported ARM versions will create protocols and trials in.prt0/.dat0 format, including ARM versions used by global sponsors.
  • See this presentation (pdf) for new features added to ARM since version 9.

ARM 2018 is now available!

The "ARM 2018" name identifies this ARM version as prepared for the 2018 field season. ARM 2018 contains all features of ARM 9.2014, ARM 2015, ARM 2016, ARM 2017, plus many new features.
  • If you have not yet upgraded to the latest version of ARM, please review the information below about new features and benefits of ARM. Contact your GDM Representative to request a price list.
  • ARM License Comparison (pdf) gives an overview of ARM license features for Full and Field/Technician licenses.
  • See ARM 2015+ FAQ for details on ARM 2015+ questions, also support and upgrade changes.
  • See an ARM 2018-2017 Overview (pdf) of new features added in ARM 2018 and 2017. See ARM Features Since ARM 9 (pdf) for an overview of enhancements since ARM 9.
  • Use the Write to Us page to ask additional questions or request a price list.
  • GDM continues our policy that the most economical time to upgrade is always when a new version is first released.
  • For contract researchers, ARM 2018 fully supports all sponsor customizations and ARM versions, and will provide sponsors with better quality trials than previous ARM versions.
  • For ARM and ST license and copyright information, see the End-User License Agreement (EULA) (pdf) for GDM software.

Electronic Downloads to Install ARM, ST, and Sponsor Customizations

Throw away those old program install CDs! The ARM Check for Updates tool will download and install the newest supported ARM and ST version that you have licensed from GDM.
  • If replacing an old computer, see Transferring ARM to a New Computer (pdf) for instructions to migrate ARM and current settings, deactivate the old computer, and transfer the ARM activation to a new computer.
  • On a new PC, add your purchased GDM software by selecting this link to install and start Check for Updates (choose "Run" if asked whether to Run or Save).
    • Enter your ARM login name and password provided by GDM on the Log In dialog.
    • Select "Install Updates" to start installing the licensed GDM software available to you.
    • See Installing ARM for more information.
  • If you are a contractor or cooperator, Check for Updates also installs sponsor customizations you have been approved to receive: BASF, Bayer Crop Science (only in North America and Australia), Dow AgroSciences, Syngenta, or SCC Group (Sumitomo Chemical Company/Valent). See Contract Researchers for more information. Contractors may request sponsor customizations (pdf).

Organization Membership

GDM proudly supports the following organizations as a corporate sustaining member:

Better Business Bureau Accreditation is registered with the Better Business Bureau's Dynamic Seal program.
Gylling Data Management, Inc., Computer Software Publishers & Developers, Brookings, SD