PROTO-SPRINKLER™ is a simple, powerful, and versatile design software tool that models and evaluates fire sprinkler systems of any complexity. PROTO-SPRINKLER follows the standard methodology and approach for calculations as specified in NFPA 13, Standard for the Installation of Sprinkler Systems, and NFPA 15, Standard for Water Spray Fixed Systems for Fire Protection. PROTO-SPRINKLER provides all the capabilities needed to accurately and consistently model systems and give all results necessary to complete a calculation which meets NFPA requirements.