Orchid® Modeling Environment

Rapid Model Development and Runtime Environment

Orchid® Modeling Environment (Orchid® ME) is L3 MAPPS' powerful object-based design and modeling tool for simulators and control systems. It is ideal for modeling complex systems and allows testing under “real world” conditions quickly and inexpensively. Orchid® ME is designed to support collaborative team efforts by allowing users to design and develop either locally, over a local area network, or remotely to create and run simulations.Orchid® ME represents decades of ongoing simulation and control systems software development. Combining user-friendly design tools, plant data, and interactive documentation, Orchid® ME allows users to quickly build and modify objects, subsystems, and complete simulations, offering unprecedented flexibility and ease of use.

Orchid® ME utilizes a complete set of library objects, built up with over three decades of experience, to model all components of your power plant, from containment, to control, to electrical, to single and two-phase thermal-hydraulic components. Using the powerful Orchid® Graphic Editor, schematics are quickly assembled to resemble the plant’s piping and instrumentation diagrams (P&ID), allowing objects from different libraries (such as electrical and hydraulic components) to be placed on the same schematic.

Orchid ME Screenshot


  • Real-time simulations based on first-principle models
  • Graphical icon-based model editors
  • Intuitive inter-schematic browsing
  • Object-oriented design with automated code generation
  • Mature multi-disciplined object libraries and code generators
  • Single development environment for all model types, including single and two-phase hydraulics, electrical, and I&C
  • Integrated object calibrators
  • Debugging, test and validation capacity
  • Multi-user distributed client/server environment
  • Customizable user interface
  • Open architecture
  • SQL database
  • Built-in configuration management features to control concurrent simulator updates
  • Compound objects
  • Drag and drop capability
  • Pan and zoom navigation schematics
  • Link objects and schematics to reference data
  • Ability to manage external source code
  • Supports multiple versions of schematica and libraries with rollback capability
  • Automatic version comparison


  • Simulation-based design provides end-to-end validation of conceptual design
  • Build, operate and test design prior to committing substantial resources
  • Objects and models used for all aspects of the project, from conceptualization to implementation and lifecycle support
  • Rapid model development and subsystem integration
  • Focuses project teams on critical design issues
  • Reuse of design simulation for operations/training
  • Promotes concurrent engineering
  • Provides interoperability with other distributed simulations
  • Used for rapid prototyping of control system designs
  • Provides detailed runtime graphics for each plant system


Naval vessel control systems, land-based and on-board simulators and turnkey training solutions.


Real-time power plant simulators and simulator modernization for all plant types and CANDU plant computer systems.


Real-time simulators for robotic systems and satellites to support simulation-based design and operations / maintenance training.