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Illustration of the 4+1 Architectural View Model. 4+1 is a view model used for "describing the architecture of software-intensive systems, based on the use of multiple, concurrent views". [1] The views are used to describe the system from the viewpoint of different stakeholders, such as end-users, developers, system engineers, and project managers.
Type 2 Mark 1 Model 2 Mod 3 "12-Go" Ground based mobile: Dipole array with a mat type reflector: 2 m: 5 kW: 10: 500 150 km effective 300 km max 6,000 kg: January 1944 Type 3 Mark 1 Model 1 "11-Go" Shore based medium size radar: Two arrays of 5 dipoles: 2 m: 10 kW: 20: 500 150 km effective 300 km max October 1943: unknown Type 3 Mark 1 Model 3 ...
This article lists protocols, categorized by the nearest layer in the Open Systems Interconnection model.This list is not exclusive to only the OSI protocol family.Many of these protocols are originally based on the Internet Protocol Suite (TCP/IP) and other models and they often do not fit neatly into OSI layers.
The CMM was developed from 1987 until 1997. In 2002, version 1.1 was released, version 1.2 followed in August 2006, and version 1.3 in November 2010. Some major changes in CMMI V1.3 [5] are the support of agile software development, [6] improvements to high maturity practices [7] and alignment of the representation (staged and continuous). [8]
The W87-1 had a planned first production unit date of July 1997, [5] but Midgetman and W87-1 were canceled in January 1992. In 2019, the W87 mod 1 was selected to replace the W78 warhead deployed on all Minuteman III missiles not currently carrying the W87 mod 0.
Product improvements begun in 1971 resulted in the 1972 MOD 1, of which only six were produced. The MOD 1 performed effectively in Navy riverine patrol craft and broader applications for the MK 19 were found. In 1973 the Navy developed the MOD 2, which featured improved reliability, safety, and maintainability. In 1976 a complete redesign ...
The Standard Model of particle physics is the theory describing three of the four known fundamental forces (electromagnetic, weak and strong interactions – excluding gravity) in the universe and classifying all known elementary particles.
[1]: 26 The model was developed independently by Robert Solow and Trevor Swan in 1956, [2] [3] [note 1] and superseded the Keynesian Harrod–Domar model. Mathematically, the Solow–Swan model is a nonlinear system consisting of a single ordinary differential equation that models the evolution of the per capita stock of capital. Due to its ...