Research in estimating multilevel models (MLM) from complex survey data is quite recent. Not only has this research resulted in several popular software packages incorporating sampling weights into estimating MLM, but it has emphasized an important point often overlooked by both analysts and providers of the survey data: the sampling weights used for multilevel analysis need to be constructed d...

This paper focused on finding reusable packages in an existing software system by measuring the required package metric to provide good quality of software. The metrics are ‘Coupling’, ‘Cohesion’, ‘Stability’ and ‘Complexity’ of a software module. The ‘Integration Testing’ takes important role to verify the connection among the modules to verify the message passing between the connected package...

Evaluation and selection of the software packages is complicated and time consuming decision making process. Selection of inappropriate software package can turn out to be costly and adversely affects business processes and functioning of the organization. In this paper we describe (i) generic methodology for software selection, (ii) software evaluation criteria, and (iii) hybrid knowledge base...

Background Feature tracking (FT) software packages measure myocardial wall motion deformation parameters through the cardiac cycle. Myocardial tagging technique is currently considered the gold standard for myocardial deformation measurements. This study compares 2 FT-software packages with a tagging software package and investigates the differences in strain deformation parameters measured in ...

Two aspects of the selection and evaluation of software packages are reviewed: the strategy for evaluation and selection, and criteria that might be applied in selection. The evaluation and selection of a software package should be approached as a project. Appropriate strategies for the selection and evaluation of software packages can be based on information systems methodologies. The main sta...

The Software Package Development Methodology (SPDM) is a methodology for developing complex and customizable software packages supporting business processes, especially Enterprise Resource Planning (ERP) software. Two approaches are applied by this chapter. First SPDM will be compared to a method engineering framework. Method engineering is a discipline to construct new methods from parts of ex...

We are developing highly scalable and systematic software packages for beam dynamics simulations. Both traditional Particle-In-Cell (PIC) methods and advanced direct VLASOV methods have been adopted. For the PIC method, particles are distributed evenly on different processors and space charge effects are included by solving Poisson’s equation on a finite mesh. Several Poisson solvers have been ...

The Wilkinson Tests, entry-level tests for assessing the numerical accuracy of statistical computations, have been applied to statistical software packages. Some software developers, having failed these tests, have corrected deficiencies in subsequent versions. Thus these tests have had a meliorative impact on the state of statistical software. These same tests are applied to several econometri...

In Object-oriented paradigm, classes are the basic units to organize the small applications. The concept of ‘package’ introduced when programmer found it difficult to organize the large application using classes. A good organization of classes into identifiable and collaborating packages eases the understanding, maintenance, testing and evolution of the software. In order to assess and improve ...