SYSTEMATIZATION AND ANALYSIS OF REMOTELY ACCESSED INSTRUMENTS AND USER COMMUNITY REQUIREMENTS Y. Kalvachev 1 , V. Ganev 1 , L. Macheva 1 , J. Harizanova 2 , and B. Harizanov 3 1 Central Laboratory of Mineralogy and Crystallography, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, 2 Central Laboratory of Optical Storage and Processing of Information, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria, 3 University of Sofia St. Kliment Ohridski, 1504 Sofia, Bulgaria Abstract This chapter describes a procedure for identifying high-level scientific equip- ment having the potential for remote instrumentation access, as well as the capacities of this equipment for integration into next-generation grids. The re- quirements of the user community for such kind of access are evaluated and analyzed. The information is implemented in a database that should be used as an interface between instrument OWNERS and USERS groups. This product could be considered as a prototype of future large-scale databases that will con- tain wide-structured information concerning remotely accessed instruments and services integrated into the next-generation grids. 1. INTRODUCTION The need to use unique and expensive equipment, which is often locally unavailable, and the broad international cooperation are key issues for the success of the great number of scientific or industry ventures. This is espe- cially important for scientific communities from countries with relatively low financial support for their research infrastructure. The possibility of accessing expensive and sophisticated equipment has a significant role in the scientific communities. Performing research through access to grid-embedded remote instrumentation, with the utilization of next-generation high-speed networks, will boost chances for scientific progress. The goals of many infrastructure