Research on redundant control mode of coordinated controller based on dual control cores

Dual CPU redundant operation of PLC is of great significance to the reliability of industrial automation control system. In view of the problems existing in the traditional dual CPU PLC redundancy control mode based on hardware strategy, this paper proposes a dual CPU redundancy control idea based on software strategy, and describes in detail the specific scheme of Dual CPU redundancy software design using A-B ControlLogix series PLC.

Drivers and Barriers Related to Project Management Software Implementation in Romanian Organizations

It is unclear how the Romanian organizations from both private and public sector are addressing the strategic changes that occur after implementation of PM software. In order to achieve the best results in the context of integrating PM software, their management teams must design tailored strategic maps, outlining the organizational drivers and barriers towards the PM software strategy implementation. This research aims at highlighting the drivers and barriers towards the PM software implementation in the case of privately owned companies and public administration institutions from Romania. For this study, primary quantitative data was collected by means of an online questionnaire, submitted to the managers from both private and public organizations from Romania. Based on the outcomes of this study, the managers from both Romanian private and public organizations should have a better understanding on the pillars able to improve the performances of project management by means of appropriate software solutions.

Modding a free and open source software video game: "Play testing is hard work"

Video game modding is a form of fan productivity in contemporary participatory culture. We see modding as an important way in which modders experience and conceptualize their work. By focusing on modding in a free and open source software video game, we analyze the practice of modding and the way it changes modders' relationship with their object of interest. The modders' involvement is not always associated with fun and creativity. Indeed, activities such as play testing often undermine these dimensions of modding. We present a case study of modding that is based on ethnographic research done for The Battle for Wesnoth, a free and open source software strategy video game entirely developed by a community of volunteers.