Abstract
LOODS, put forward by the author, is a new object-oriented terminal applications development environment, which consists of two parts: system modelling methodology (LOODS abstract models) and LOODS visual language system. The former is an object-oriented concurrent/parallel information system modelling methodology on the basis of requirements analysis results. The later is an automatic generator of LOODS abstract models, supporting concept programming and learning-by-example building of application systems. Also a new method of object-oriented learning is introduced for the LOODS visual knowledge system. LOODS has been realised in C++ on a Novell network environment.