FEAST Design Concepts

Understanding these core design concepts is essential for effectively using FEAST to build automation systems.

Layered Architecture

FEAST uses a layered approach where each layer provides services to the layer above it:

  1. Hardware Layer (BREADS): Physical devices, sensors, actuators, and mechanical interfaces
  2. Firmware Layer (FROOTS): Device control logic, real-time operations, and hardware abstraction
  3. Middleware Layer (PROTINS): Device orchestration, communication protocols, and runtime management
  4. Software Layer (SUGIRS): User interfaces, monitoring systems, and business logic

Hierarchical Organization

Systems are organized hierarchically to manage complexity and enable scalability:

  • Module Level (SLICE): Single-function modules (e.g., temperature sensor, motor controller)
  • Device Level (LOAF): Local systems combining multiple SLICE modules to form a cohesive device (e.g., standalone machine, test bench)
  • System Level (BATCH): Coordinated groups of LOAF devices working together as an integrated system (e.g., production line, multi-station cell)
  • Facility Level (OVEN): Facility-wide networks of BATCH systems (e.g., entire factory, campus)

Standardized Interfaces

All FEAST components use standardized interfaces to ensure interoperability:

  • Communication Protocols: Consistent data exchange formats and network protocols
  • Mechanical Interfaces: Standard connectors, mounting systems, and physical dimensions
  • Software APIs: Uniform programming interfaces across all software components
  • Configuration Methods: Common approaches to device setup and parameter management
  • Behavioral Models: Standardized description and programming of control patterns and execution sequences

Modularity Principles

Components are designed to be modular and composable:

  • Single Responsibility: Each component has one clearly defined function
  • Loose Coupling: Components interact through well-defined interfaces
  • High Cohesion: Related functionality is grouped together
  • Plug-and-Play: Components can be easily added, removed, or replaced

Open Standards Approach

FEAST specifications are developed as open standards:

  • Transparent Development: All specifications developed in public repositories
  • Community Input: Stakeholders can participate in the design process
  • Vendor Neutral: No dependence on proprietary technologies or vendors
  • Future Evolution: Standards evolve based on real-world usage and feedback

Implementation Strategy

When building FEAST systems, follow this strategy:

  1. Start Small: Begin with simple SLICE-level implementations
  2. Validate Early: Test individual components before system integration
  3. Scale Gradually: Add complexity incrementally as you gain experience
  4. Follow Standards: Adhere to FEAST specifications for maximum compatibility
  5. Document Everything: Maintain clear documentation for future maintenance

Next Steps

Now that you understand the core concepts, proceed to the Usage section to learn how to apply these concepts when building your own automation systems.