Business Logic / Domain Model structures for Ruby, Rails

• adomokos/light-service
  • Series of Actions with an emphasis on simplicity.
• collectiveidea/interactor
  • Interactor provides a common interface for performing complex interactions in a single request.
• cypriss/mutations
  • Compose your business logic into commands that sanitize and validate input.
• orgsync/active_interaction
  • Manage application specific business logic.
• krisleech/wisper
  • Wisper is a Ruby library for decoupling and managing the dependencies of your domain models.
• trailblazer/trailblazer
  • A High-Level Architecture for Ruby. http://trailblazer.to
• apneadiving/waterfall
  • A slice of functional programming to chain ruby services and blocks, thus providing a new approach to flow control. Make them flow!
• andypike/rectify
  • Rectify is a gem that provides some lightweight classes that will make it easier to build Rails applications in a more maintainable way. It's built on top of several other gems and adds improved APIs to make things easier.