Maurer’s universal test is a very common randomness test, capable of detecting a wide gamut of statistical defects. The algorithm is simple (a few Java code lines), flexible (a variety of parameter combinations can be chosen by the tester) and fast. Although the test is based on sound probabilistic grounds, one of its crucial parts uses the heuristic approximation: c(L, K) ∼= 0.7 − 0.8 L + (

Of critical importance to the success of any e-commerce site are the two factors: rapid application development and quick response time. A three-tier architecture composed of presentation layer, business layer, and data access layer emerges to allow rapid changes in user interface, business logic, and database structures. Too often, such a logical three-tier architecture is considered as requir...

The Mosquito is Glasflügel's entry into the 15-meter flapped sailplane racing category, and it is a sleek, modern, fiberglass sailplane that is both meticulously engineered and pleasing to the eye. Its well-known cousins are the AS-W 20, LS-3, and Mini-Nimbus. All four made their competition debuts during the 1977 summer season. Our Dallas Gliding Association testing has already been completed ...

Declarative approaches to process modeling are regarded well suited for highly volatile environments as they provide a high degree of flexibility. However, problems in understanding and maintaining declarative process models impede their usage. To compensate for these shortcomings, Test Driven Modeling (TDM) has been proposed. This paper reports on an empirical investigation in which TDM is vie...

Existing assessment and improvement models of software testing process mainly intend to raise maturity of an organization with reference to testing activities. Such process assessments are based on what testing activities are being carried out, and thus implicitly evaluate process quality. Other test process measurement techniques attempt to directly assess some partial quality attribute such a...