WHAM (Weighted Heuristic Analyzer Monitor) is a lightweight, cross-platform expert system for assessment of candidate water sources based on public regulations. Using no reagents or destructive methods, it executes sensor measurements in real-time while analyzing those measurements in parallel to provide instantaneous sample assessment.
Modular and flexible in its design, WHAM can be configured to interface with a wide variety of sensors and apply different sets of regulations based on context and need. Sensor readings (input) and analysis results (output) are separately exported as CSV-style spreadsheets as well as stored together, along with configuration settings, in a portable SQLite database. WHAM has been used to characterize numerous water samples, including deionized water as well as local (Amherst, Massachusetts, USA) tap and pond water.