USER INTERFACE EXECUTION DEVICE AND USER INTERFACE DESIGN DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a user interface execution device which allows updated data to be provided to users even when a maximum size of a storage area storing data to be preliminarily read out is predictable upon designing a user interface and the data to be preliminarily read is updated after being preliminarily read out.SOLUTION: A user interface execution device 2 comprises: a state transition unit 18 that implements state transition of a user interface on the basis of a code and an operation content of a user; a data request unit 20 that requests a data providing unit 3 to preliminarily read data created based on a data acquisition user interface included in the code defined by being statically associated with a state of a user interface; and a storage unit 16 that stores data acquired from the data providing unit 3 as a responce to the pre-reading request of the data request unit 20. The state transition unit 18 is configured to select data to be preliminarily read on the basis of a difference between the data acquisition interfaces to be used in a pre-transition state and in a post-transition state prior to execution of the state transition.SELECTED DRAWING: Figure 1