Six Sigma is regarded as a well-structured methodology for improving the quality of processes and products. It helps achieve the company’s strategic goal through the effective use of project-driven approach. As Six Sigma is a project-driven methodology, it is essential to prioritize projects which provide maximum financial benefits to the organization. Generating and prioritizing the critical S...

Specification and maintenance of relationships between models are vital for MDE. We show that a wide class of such relationships can be specified in a compact and precise manner if intermodel mappings involve derived model elements computed by corresponding queries. Composition of such mappings is not straightforward and requires specialized algebraic machinery. We present a formal framework, i...

Spreadsheets are widely used, and studies have shown that most end-user spreadsheets contain nontrivial errors. To improve end-users productivity, recent research proposes the use of a model-driven engineering approach to spreadsheets. In this paper we conduct the first systematic empirical study to assess the effectiveness and efficiency of this approach. A set of spreadsheet end users worked ...

............................................................................. XIII Declaration ......................................................................... XV Acknowledgements .............................................................. XVI

Precise specification of meta-models is an important prerequisite for the successful application of a model-driven engineering (MDE) process. One means of precise specification are textual constraints. However, the task of constraint development is time-consuming and error-prone if done manually. In this paper, we present both a methodology and a tool for developing constraints in a systematic ...

Modeling is a most important exercise in software engineering and development and one of the current practices is object-oriented (OO) modeling. The Object Management Group (OMG) has defined a standard object-oriented modeling language – the Unified Modeling Language (UML). The OMG is not only interested in modeling languages; its primary aim is to enable easy integration of software systems an...

Content personalization of e-learning resources has the opportunity to encourage self-directed learning and collaborative activities between students with varying cultures and backgrounds. In the case of students with disabilities, it also has the potential to provide equality of access to learning resources that can be presented in formats that are compatible with a student’s needs and prefere...