Hierarchical System Levels

Currently, FEAST defines several hierarchical system levels to organize its architecture and functionality. These levels include:

  • SLICE

    Single-function Logic Interface & Controller Element or “slice” implements the BREAD standard (BREADS). Single-function boards with onboard processing and communication capabilities. CRUST interfaces can be used to adapt non-SLICE devices into ones that SLICE compliant with BREAD.

  • LOAF

    Locally Operated Automation Framework or “loaf” implements the BREAD standard (BREADS) for controllers and corresponding bus infrastructure. Controller and shared communication & power bus to connect multiple SLICEs and coordinate their functions to perform a localized process.

  • BATCH

    Bridged Architecture for Task Control & Handling or “batch” represents the coordination of multiple LOAFs in a leader-follower configuration. In this clustered configuration one LOAF is designated the leader to manage the coordination of multiple (follower) LOAF systems to perform complex or distributed processes.

  • OVEN

    Orchestrated Versatile Embedded Network or “oven” represents the aggregation and coordination of one or more BATCH clusters. Networks multiple BATCH-level systems to a central server for high-level management and monitoring of production scheduling, historical archiving, and facility alerts to achieve broader organizational or operational goals.

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