Human work as context for development of object oriented modelling techniques

Computer systems are increasingly being used for communication and coordination of work, while object-oriented modelling techniques aim at modelling the problem domain of the computer system. Current techniques have been developed with respect to easy implementation, while we argue that further development of the modelling techniques should also be based on knowledge about human work in organisations. We outline a learning cycle of modelling technique and point to where such knowledge should be included. We have carried out two alternative approaches to development of object oriented techniques based on these ideas, and we outline these development processes. One approach is based on semiotic concepts, the other is based on activity theory.