A report is made on an experience of teaching a senior-year course on software maintenance, centered around a maintenance project. For the course, students organized themselves into groups and worked on adaptive and perfective maintenance of selected real-world software products. The projects involved such issues as code understanding, requirements engineering, and maintenance design, and dealt...

The higher education community is concerned about the cost and performance of commercial software products. A common view is that existing proprietary options do not have the features required by instructors and students or allow for costeffective customization. One way to address these problems in poorer countries, and hence improve their quality of education and access to knowledge, would be ...

the biggest challenges faced in big cities are greenhouse gas emission and growing energy needs. efficient utilization of existing infrastructures has a prominent role in response to the challenges. energy hub approach embraces performance of different energy networks. energy hub is defined as a super node in electrical system receiving distinctive energy carriers such as gas and electricity in...

Successful projects effectively manage their requirements. How the mix of different requirements evolves throughout a successful project life-cycle is poorly understood. Moreover, requirements practices may be changing, according to the authors of the New RE—a model of six critical requirements factors. The New RE focuses on leveraging existing components to create new functionality. This pract...

jUCMNav is an open-source Eclipse tool for modeling and analyzing stakeholder goals, scenarios, and requirements with the User Requirements Notation (URN) standard. This paper gives a brief overview of this tool, with an emphasis on recent improvements targeting URN’s Goal-oriented Requirement Language (GRL) found in version 5.x.

Requirements are often cited as one of the important factors in determining project success. Over the past 30 years requirements practice has changed. The new requirements engineering is facing new problems of complexity and continuous change. To address this New RE, researchers have proposed a new Six-V measurement model. This study provides an operationalization of the Six-V model and then us...

This special issue of Open Journal of Information Systems (OJIS) reports work on designing the market of data for practical data sharing via educational and innovative communications (MoDAT). In the market of data, data are reasonably dealt with sold, opened, or shared based on negotiation. Since last years, we have been aiming at realizing a social environment, where each person feels free to ...

A mini-workshop with representatives from the data-driven science and database research communities was organized in response to suggestions at the first XLDB Workshop. The goal was to develop common requirements and primitives for a next-generation database management system that scientists would use, including those from high-energy physics, astronomy, biology, geoscience and fusion, in order...

although on the basis of geo-economic theories, study of energy-related issues is of strategic importance to all countries, energy resources are no more restricted to oil and gas reserves as was the case during the past century. of course, these resources are still key elements of global energy reserves. today, in addition to geo-politics and geo-economics, the concept of hydro-geopolitics puts...

according to statistics, in 2009 iran’s oil and gas consumption were 1.4 and 3.1 times higher than the world average and during 1998 to 2008 residential sector accounted for 42% of the total energy consumption in the country. as hot-humid climate is the most severe climate across the world, climatic consideration must be incorporated in design of the new dwellings in this area. over the centuri...