Quality considerations of real time access to multidimensional matrices

Abstract

This paper investigates the quality considerations of real time access to multidimensional matrices. Researchers have emphasised the relationship between multidimensional matrices and data warehousing in the past; the multidimensional matrix concept may also be used to store real time transaction data. Different models can be used to implement multidimensional matrices. The application of the quality characteristics of Functionality, Reliability, Usability, Maintainability, Portability and Efficiency, as related to software developed for the Matrix Model is discussed. Efficient software must provide appropriate responses. Performance is an inherent problem when accessing multidimensional matrices. Different techniques can be used to optimise performance. Techniques such as aggregates and partitioning can provide outstanding performance gains. The importance of quality is often recognised more by its absence at the end of a software project, than by its presence at the start of a new project. Quality cannot be added into a product after it has been developed, it must be built into it from the start.