Design of User Interfaces for the LAMOST Observatory Control System

The Large Area Multi-Object Fiber Spectroscopic Survey Telescope(LAMOST) located at the Xinglong Station of the National Astronomical Observatories is the world's largest steerable reflecting Schmidt telescope. In order to conveniently control the telescope and make observation more efficient, we have designed the Graphical User Interfaces(GUIs)of the Observatory Control System(OCS). In this paper, we first give the analysis of the software architecture of LAMOST telescope control, and subsequently give the analysis and design of the GUIs using the User-Centered Design(UCD)based on scenarios. We use the Qt, CORBA(Common Object Request Broker Architecture), multi-thread pattern, and Model-View-Controller (MVC)pattern to realize the GUIs, which have been tested. The GUIs have been approved by users and bave been successfully applied to LAMOST observation.