White-box testing The real point is that tests are usually designed from an abstract structure such as the input space, a graph, or logical predicates, and the question is what level of abstraction we derive that abstract structure from. That can be the source code, requirements, input space descriptions, or one of dozens of types of design models. Therefore, the "white-box / black-box" distinction is less important and the terms are less relevant. In penetration testing, white-box testing refers to a methodology where a white hat hacker has full knowledge of the system being attacked. The goal of a white-box penetration test
Hiking apparel Hiking apparel Hiking apparel is clothing, footwear, headwear, and other items worn that are suitable for hiking, including trousers, sweaters, underwear, and hiking boots. Hiking apparel is usually selected to suit predicted weather conditions, taking into account UPF rating (Ultraviolet Protection Factor), weight, water and wind resistance. Today's hiking apparel is more advanced than previous years, having material that can be wind resistant, water-repellent and yet breathable, and lightweight. Some hiking apparel is designed to be "breathable", drawing moisture away from the body while protecting from the weather. Usually three layers of apparel are worn on a rough-weather hike, the