a b s t r a c tintroduction: although decision-making processes have become a principal target of study among addiction researchers, few researches are published according to effects of different treatment methods on the cognitive processes underlying decision making up to now. utilizing cognitive modeling method, in this paper we examine the effects of methadone maintenance treatment (mmt) on ...

A large industrial process, software maintenance, has been modelled by using the process modelling language SOCCA. The paper reports about the experiences with this trial. In particulal; feasibility, expressiveness, quality, and the overall benejits of a formal SOCCA model are discussed and compared to the formerly existing informal process description. In order to illustrate the results, a wel...

In consequence of changing requirements and technological progress, software languages are subject to change. The changes affect the language’s specification, which in turn affects language processors as well as existing language utterances. Unfortunately, little is known about how software languages evolve in practice. This paper presents a case study on the evolution of four modeling language...

A large industrial process, software maintenance, has been modelled by using the process modelling language SOCCA. The paper reports about the experiences with this trial. In particular, feasibility, expressiveness, quality, and the overall benefits of a formal SOCCA model are discussed and compared to the formerly existing informal process description. In order to illustrate the results, a wel...

Production planning and maintenance are two important problems in manufacturing systems. Despite the relationship exists between these two problems due to sudden failures and production capacity occupied by maintenance activities, each of these problems planned separately and as a result program and model efficiencies reduce in the real world. The aim of integrated production and maintena...