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OpenFAST uses a generic message object model combined with a generic template model.  Each piece of the template model is a part of the decoder/encoder.  By defining a template, the corresponding decoder and encoder are built-in to the template definition.


  • No recompilation or code-generation is needed as templates change
  • New templates can be loaded on the fly
  • Dynamic template exchange is simple and relatively straight forward
  • Getting up and running with OpenFAST is much easier and faster than code generated solutions
  • More flexible and easier to change than hard-coded template encoder/decoder implementations


  • Memory consumption is high due to the fact that all data is stored as objects in the generic object model
  • Performance is lower than FAST implementations using code generation
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