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Project Trident: A Scientific Workflow Workbench

Project Trident: A Scientific Workflow Workbench is a set of tools based on the Windows Workflow Foundation that addresses scientists’ need for a flexible, powerful way to analyze large, diverse datasets. It includes graphical tools for creating, running, managing, and sharing workflows and can run workflows on a Windows HPC Server 2008 cluster. Project Trident also offers integration with myExperiment, an external workflow collaboration portal. Trident Workflow Application, available in Windows Presentation Foundation and Silverlight versions, provides a simple way to run Trident workflows.


File NameTrident Version
VersionVersion 1.0
Date Published6 November 2009
Download Size53.01 MB

Note By installing, copying, or otherwise using this software, you agree to be bound by the terms of its license. Read the license.

About Project Trident

The Silverlight version of the Trident Workflow Application enables users to run workflows remotely using a Silverlight-enabled browser, available for a variety of operating systems.

Project Trident also provides a framework to add runtime services and comes with services such as provenance, workflow monitoring, and workflow-versioning support. Developers can extend Trident by implementing custom components to handle specialized processing requirements.

Components include a Word 2007 add-in that runs workflows, stores them in a Word document, and reviews or changes parameters to rerun the workflows. Workflow inputs and outputs easily can be inserted into a Word document for reproducible research.

A Trident Registry maintains libraries of workflows and activities, workflow inputs and outputs, workflow instances, and associated data products, and a security model supports users and roles; each user can have a personal workflow library and can share workflows with other users. And a Management Studio manages the Trident Registry and workflow execution, schedules workflows, and monitors workflow executions locally or remotely.

System Requirements

This section describes the hardware and software requirements for running Trident Workbench and Trident workflows.

Trident hardware requirements depend on how you will run workflows:

  • Stand-alone: Trident Workbench and all workflows run on a single Windows workstation.

    This option requires a single workstation that can run Windows Vista®, Windows 7, or Windows Server® 2008.
  • Distributed: Trident Workbench runs on a Windows workstation, but can run workflows on a Windows HPC Server 2008 cluster.

    This option requires:
    • A Windows workstation, to run Trident Workbench.
    • Access to a Windows HPC cluster, to run workflows on the cluster.

You can install the Trident Document Add-in on any workstation running Windows Vista or Windows Server 2008 or Windows 7.

Your workstation must have the following software installed:

  • Microsoft Project Trident: A Scientific Workflow Workbench
  • Windows Vista, Windows 7, or Windows Server 2008 (or a later version)
  • Microsoft .NET Framework Version 3.5, SP1
  • Microsoft SQL Server® 2008, SQL Server 2005, or SQL Server Express.

    SQL Server Express is adequate for learning how to use Trident Workbench, but a full version of SQL Server is recommended for production use.
  • Microsoft Visual Studio® 2008, if you want to implement custom Trident components. (Visual Studio 2008 includes SQL Server Express.)
  • Microsoft Silverlight® with Internet Information Services (IIS) 7.0 enabled, if you want to support Silverlight workflow applications.
  • Microsoft Office Word and the Trident Document Add-in package, if you want to embed Trident workflows in Word documents.

Intallation Instructions

  1. Click the Download button at the top of this page.
  2. Follow the onscreen instructions to complete the download of the Trident Version file.
  3. On your computer, extract the Trident Version file you downloaded.
  4. Open the extracted folders, and then open one of the following files:
    • Trident_Installation_Guide.doc
    • Trident_Installation_Guide.pdf
  5. Follow the instructions in the Project Trident: Installation Guide to complete the installation.