Basic Design of SHOSHl Operating System That Supports Handwriting Interfaces

概要

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This paper describes the basic design of the SHOSHI operating system (OS) that supports handwriting interfaces. The key concept of this OS is to present the fundamental architecture of a paper metaphor. We propose the concept of "virtual paper", conceived to duplicate useful attributes of the real thing. From our experience in pen application development, handwriting interfaces have the following characteristics : diversity, polysemy and immediate pen response. "Virtual paper" also has these characteristics. To utilize diversity, attributes data type and handling procedures are freely definable by the user. To utilize polysemy, "virtual paper" provides data conversion by the way of attribute conversion and data linking mechanism. Unifying the system interface into "paper" we manage the "virtual paper" features in the OS Iayer. Moreover, attributes must be definable by user programs and registered in the OS dynamically. However, conventional OS's cannot register API (Application Program Interface)'s dynamically. To utilize dynamic API registration, the OS provides dynamic linking. For storing linked data, the OS provides a one-level store facility. And the OS is implemented from each resource management subsystem in order to maintain immediate pen response. As a result of this design, this system can present the system interface unified into "paper".
一般社団法人情報処理学会の論文
1994-12-15