system boundary
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System Sequence Diagram — In software engineering, a System Sequence Diagram (SSD) is a sequence diagram that shows, for a particular scenario of a use case, the events that external actors generate, their order, and possible inter system events. System sequence diagrams… … Wikipedia
Boundary scan — is a method for testing interconnects (wire lines) on printed circuit boards or sub blocks inside an integrated circuit.The Joint Test Action Group (JTAG) developed a specification for boundary scan testing that was standardized in 1990 as the… … Wikipedia
Boundary — (plural: boundaries) may refer to: Border in psychology, Personal boundaries in mathematics, Boundary (topology), the closure minus the interior of a subset of a topological space; an edge in the topology of manifolds, as in the case of a… … Wikipedia
Boundary Commissions (United Kingdom) — Boundary Commissions in the UK are Non Departmental Public Bodies responsible for determining the boundaries of constituencies for elections to the Westminster (UK) Parliament, the Scottish Parliament and the National Assembly for Wales. There… … Wikipedia
Boundary critique — is the concept in critical systems thinking, that states that both the meaning and the validity of professional propositions always depend on boundary judgments as to what are facts or observation and norms or valuation standards. [Werner Ulrich… … Wikipedia
Boundary layer separation — is when the thin layer of viscous fluid leaves the surface of the body that it is flowing over. The viscosity of the fluid causes the boundary layer separation. [Wilcox, David C. Basic Fluid Mechanics. 3rd ed. Mill Valley: DCW Industries, Inc.,… … Wikipedia
System — (from Latin systēma , in turn from Greek polytonic|σύστημα systēma) is a set of interacting or interdependent entities, real or abstract, forming an integrated whole. The concept of an integrated whole can also be stated in terms of a system… … Wikipedia
Thermodynamic system — A thermodynamic system is a precisely defined macroscopic region of the universe, often called a physical system, that is studied using the principles of thermodynamics. All space in the universe outside the thermodynamic system is known as the… … Wikipedia
Boundary representation — In solid modeling and computer aided design, boundary representation often abbreviated as B rep or BREP is a method for representing shapes using the limits. A solid is represented as a collection of connected surface elements, the boundary… … Wikipedia
boundary ecosystem — ▪ biology Introduction complex of living organisms in areas where one body of water meets another, e.g., estuaries and lagoons, or where a body of water meets the land, e.g., marshes. The latter are often called wetlands. Boundary… … Universalium
Boundary Stones (District of Columbia) — The Boundary Markers of the Original District of Columbia are the 40 milestones that a survey team led by Major Andrew Ellicott placed in 1791 and 1792 to mark the future District s boundaries. Today, 37 of the marker stones survive as the oldest … Wikipedia
