The software framework of RODOS provides tools for processing and mana
ging a large variety of different types of information, including mete
orology, radiology, economy, emergency actions and countermeasures, ru
les, preferences, facts, maps and statistics. It must handle a wide ra
nge of modules and programs which build the model chains for radiologi
cal calculations, simulation of countermeasures and emergency manageme
nt. The main task of the Operating Subsystem OSY, which is based on th
e Client-Server Model, are the control of system operation, data manag
ement, and the exchange of information among various modules as well a
s the interaction with users in distrubuted computer systems. It conta
ins tools for the modularisation and integration of external programs
into the RODOS system. The software framework of RODOS is described, i
n particular, the individual modules of its Operating Sub-system OSY,
its distributed database, the geographical information system RoGIS, t
he on-line connections to radiological and meteorological networks and
the software environment for the integration of external programs int
o the RODOS system.