Abstract: A method and system for data processing open-ended respondent answers to open-ended questions provides reproducible categorized dynamically variable coding of the open-ended respondent answers to the open-ended questions. The data processor (200) has an updateable retrievable word dictionary fo words stored therein with the open-ended answers comprising words. The open-ended answers are input to the data processor (102,106) and classified (108) into corresponding word types such as keywords, modifiers, skip words, connectors, and negative words, with the combined keywords and associated modifiers forming key phrases. The input words are convered (112) into corresponding binary coded words for providing a binary defined sentence corresponding to the input open-ended respondent answer.

Abstract: The absorption heat pump installation operates with water as a working medium. The installation is equipped with an energy accumulator which acts as a direct evaportor and is operated through the choice of a suitable hydroscopic absorption medium at the triple point of water (6.1 mbar, 0.degree. C.) as an ice accumulator. Water of a room heating system and/or a utility water heater serves as a coolant in the absorber and condenser of the installation. Outside air is preferably used as a low temperature heat source in which case the useful time for heat pump operation is extended without the danger of freezing of an outside-air heat exchanger at temperatures of the ambient air below 0.degree. C.