Abstract: A magnetostrictive liquid level transducer equipped with a number of temperature sensitive resistors is supplied with low level power from a remote station and charges a capacitor to store power for interrogation of the level transducer. The transducer is interrogated periodically for level measurements and the capacitor is recharged between interrogations. During the recharging periods, temperature measurements are made. Thus the level and temperature related data is measured and transmitted alternately. Each measurement results in a pair of pulses having a spacing corresponding to the measured value. The transmission message comprises a plurality of frames or time periods. The first frame is blank and is used for synchronizing the receiving device with the message frames. The subsequent frames have the level and temperature related data interleaved in the message and are easily sorted by the receiving device at the remote station. The data pulses are sent on the power transmission conductors.

Abstract: A computer system for building models of complex business transactions in an information management system. The system includes storage means for storing ordered sets of references to design data, such as entities. The ordered sets, or entity-sets, are assigned a value, and may then be manipulated in a manner similar to a data variable. The references may be ordered in accordance with predetermined criteria, or operator selected criteria.

Abstract: A computer system for processing information representative of complex business transactions. The system enables a user to define business logic within a dynamic information management system model. The system may include a plurality of editors which enable a user to dynamically create, analyze and modify design data. The system further includes graphical displays which enable a user to affect the operations to be performed on that design data.

Abstract: A computer system for dynamically modeling information systems of organizations. The system includes a plurality of editors which enable a user to interact with the system. Included in the system is an information modeler, an information flow modeler, and a logic modeler for creating, analyzing and modifying design data associated with each modeler. Each of the modelers are dynamically interlinked, such that a change to one design data set will affect a corresponding change in other design data sets. The system includes graphic representations associated with each of the modelers to enable a user to interact with the system. The objects of each of the graphic representations may also be dynamically linked, such that a change in one representation affects a substantially immediate change in other representations.