RelaX (Reliable distributed applications support on UNIX) is a portable and extensible system software layer on top of UNIX-like operating system kernels supporting reliable distributed applications by a generalized transaction mechanism. The distributed transaction mechanism relieves each programmer of dealing explicitly with error recovery and concurrency control in every distributed applicat...

Selecting the most suitable manager to lead a project is a non-trivial task especially if the need arises urgently. Our research presents a new method by which a new manager can be selected objectively by formally modeling the leadership characteristics, which are the core criteria of selection. The ideal characteristics sought by the company are modeled using a Configuration Profile, while the...

This paper provides a comparative analysis of five implementations of transaction support. The first of the methods is the traditional approach of implementing transaction processing within a data manager on top of a read optimized file system. The second also assumes a traditional file system but embeds transaction support inside the file system. The third model considers a traditional data ma...

in the portfolio selection problem, the manager considers several objectives simultaneously such as the rate of return, the liquidity and the risk of portfolios. these objectives are conflicting and incommensurable. moreover, the objectives can be imprecise. generally, the portfolio manager seeks the best combination of the stocks that meets his investment objectives. the imprecise goal program...

the aim of this study was to investigate the relationship among employees’ empowerment, organizational commitment and job commitment in physical education organization of tehran province. the statistical population included all personnel in physical education organization of tehran province out of which 150 subjects were selected through stratified random sampling. a) spreitzer's (1995) em...