This paper proposes a principled methodology for the realization of distribution transparencies. The proposed methodology is placed within the general context of Model-Driven Architecture (MDA) development. Specifically, it consists of a UML-based representation for the specification of platform independent models of a system. Moreover, it comprises an automated aspect-oriented method for the r...

Studies to evaluate the usage and success of the spiral development model have shown mixed results—many successes but many misinterpretations and neglect of its underlying principles, leading to continuing development problems and failed systems. This article describes a recent improvement to the spiral development process model that is easier to understand, is harder to misinterpret, and bette...

what id basic in this article is that motivation is very important for managers to understand, since managers must channel people's motivation, so they will achieve personal and organizational goals, however, people's abilities and role perception are also important factors in how well they will perform. in this article we have followed the evolution path of the motivational theories ...

Purpose: Considering the role of leadership in achieving the education missions, present research done with the aim of designing a suitable leadership model to achieve new missions of higher education. Methodology: This study in terms of purpose was applied and in terms of implementation was exploratory combined (qualitative and quantitative). The research population in the qualitative part wa...

awareness of the level of river flow and its fluctuations at different times is one of the significant factor to achieve sustainable development for water resource issues. therefore, the present study two hybrid models, wavelet- adaptive neural fuzzy interference system (wanfis) and wavelet- artificial neural network (wann) are used for flow prediction of gamasyab river (nahavand, hamedan, iran...