Abstract: A device for aiding a software designing process in which software is divided into a plurality of tasks includes a dynamic-specification-information editing unit for defining dynamic behaviors between the tasks to create a dynamic specification, a static-specification-information editing unit for defining static configurations between the tasks to create a static specification, and an editing-unit-coordination controlling unit for coordinating operations of the dynamic-specification-information editing unit and the static-specification-information editing unit.

Abstract: A magnetic disk drive capable of performing a head seek at high speed even when a track pitch of the recording track of the magnetic disk is narrowed. The structure eliminates incomplete erasure caused by a positioning error of a recording head and prevents side-fringe magnetic field from erasing a signal on an adjacent track in order to obtain a larger reproduction output.

Abstract: During a software designing operation, a designer accesses a level prescribing unit through an interaction managing control unit. The level prescribing unit provides the guidance to specification information and design parts, etc. at a desired design level. If the designer selects and inputs specification information or design parts, the design editor corresponding to the design specification information in a design editor unit is activated, so that the designer is guided and aided through a display to produce a desired software. At this time, the information about the state of the editing operation "completed" or "not completed" is stored with the directory. The designed document satisfying a specific condition, for example, a document determined to be "design completed", is stored as a data base by a design data base storing unit.

Abstract: A touch lever closing mechanism does not employ an actuator and a sensor but employs first and second touch levers provided with first and second arms and a shaft for opening and closing the first and second arms.

Abstract: In a hydraulic machine including a vertical shaft, a runner secured to an end of the vertical shaft, a runner chamber defined by an upper cover and a lower cover to encase the runner to be rotatable, and a spiral casing provided around the runner chamber, a vibrating member is provided in a portion of the runner chamber to be vibrated in resonance with the runner when the runner is operated in the runner chamber.