Quality models are needed to evaluate and set goals for the quality of a software product. The international ISO/IEC standard 9126 defines a general quality model for software products. Software is developed in different domains and the usage of the ISO/IEC quality model requires an instantiation for each concrete domain. One special domain is the development and maintenance of test specificati...

Each software entity should have as high quality as possible in the context of limited resources. A specification of a software quality measure is a kind of software entity. Existing studies about the evaluation of software measures do not pay enough attention to the quality of specifications of measures. Semiotics has been used as a basis in order to evaluate the quality of different types of ...

Optimal allocation of water resources requires an agreed basis for discussing what is an "acceptable" water quality. Developments in the establishment and interpretation of water quality specifications are discussed. It is argued that percentile water quality standards and sensible definitions of water quality failure are often inconsistent. Rigid water quality specifications cannot account for...

In software engineering, performance analyses and predictions play an important role in the selection of components and the evolution of complex componentbased systems. These analyses and predictions are based on parameterized performance specifications. However, the quality of the specifications and their trustworthiness usually remain unspecified. In existing approaches, it remains unclear if...