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Verification And Validation (software)
In software project management, software testing, and software engineering, verification and validation is the process of checking that a software engineer system meets specifications and requirements so that it fulfills its intended purpose. It may also be referred to as software quality control. It is normally the responsibility of software testers as part of the software development lifecycle. In simple terms, software verification is: "Assuming we should build X, does our software achieve its goals without any bugs or gaps?" On the other hand, software validation is: "Was X what we should have built? Does X meet the high-level requirements?" Definitions Verification and validation are not the same thing, although they are often confused. Boehm succinctly expressed the difference as * Verification: Are we building the product right? * Validation: Are we building the right product? "Building the product right" checks that the ''specifications'' are correctly implemented by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Software Project Management
Software project management is the process of planning and leading software projects. It is a sub-discipline of project management in which software projects are planned, implemented, monitored and controlled. History In the 1970s and 1980s, the software industry grew very quickly, as computer companies quickly recognized the relatively low cost of software production compared to hardware production and circuitry. To manage new development efforts, companies applied the established project management methods, but project schedules slipped during test runs, especially when confusion occurred in the gray zone between the user specifications and the delivered software. To be able to avoid these problems, ''software'' project management methods focused on matching user requirements to delivered products, in a method known now as the waterfall model. As the industry has matured, analysis of software project management failures has shown that the following are the most common caus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computer Model
Computer simulation is the running of a mathematical model on a computer, the model being designed to represent the behaviour of, or the outcome of, a real-world or physical system. The reliability of some mathematical models can be determined by comparing their results to the real-world outcomes they aim to predict. Computer simulations have become a useful tool for the mathematical modeling of many natural systems in physics (computational physics), astrophysics, climatology, chemistry, biology and manufacturing, as well as human systems in economics, psychology, social science, health care and engineering. Simulation of a system is represented as the running of the system's model. It can be used to explore and gain new insights into new technology and to estimate the performance of systems too complex for analytical solutions. Computer simulations are realized by running computer programs that can be either small, running almost instantly on small devices, or large-scale p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Terma A/S
Terma A/S is a Danish defense and aerospace manufacturer for both civilian and military applications, and is owned by the Danish company Thrige Holding A/S. It is Denmark's largest company within the aerospace and the defense industry, employing approximately 1,800 people worldwide. The company was founded in 1949 by Orla and Svend Aage Jørgensen; it originally focused on the production of thermometers and manometers for ships and various other metal components. Following its purchase by Thorkild Juncker, Terma A/S refocused itself on the production of electronic measuring instruments along with early radar systems; it expanded rapidly during the 1950s and 1960s. The firm became a leader in defense electronics, and had diversified into air defense systems, aircraft avionics, and parts for missile systems by 1970. It continued to grow, acquiring various other Danish defense firms during the 1990s. In 1999, Terma A/S acted at the prime contractor for the Ørsted satellite, the fi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Critical Software
Critical Software is a Portuguese international information systems and software company, headquartered in Coimbra, Portugal, Coimbra. The company was established in 1998, from the University of Coimbra's business incubator and technology transfer centre, Instituto Pedro Nunes (IPN). The company has other offices in Porto,Lisbon (Portugal), Southampton (United Kingdom), Munich (Germany) and California (United States). Critical Software develops systems and software services for safety, mission and business-critical applications in several markets, including aerospace, defense, automotive, railway, telecoms, finance, and energy and utilities. The company's competencies include system planning and analysis, system design and development, embedded and real-time systems, command and control systems, security and infrastructure, systems integration, business intelligence, independent software verification & validation, UxD, AI, digital transformation and smart meter testing. Critical S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DNV GL
Det Norske Veritas (DNV), formerly DNV GL, is an international accredited registrar and classification society headquartered in Høvik, Norway. DNV provides services for several industries, including maritime, oil and gas, renewable energy, electrification, and healthcare. As of 10 January 2024, the company has about 15,000 employees and 350 offices operating in more than 100 countries and provides services for several industries. In 2013, Det Norske Veritas (Norway) and Germanischer Lloyd (Germany), two prominent organizations in the industry, merged to form DNV GL. The company later simplified its name to DNV in 2021, while maintaining the organizational structure that resulted from the merger. DNV provides services for 13,175 vessels and mobile offshore units (MOUs), amounting to 265.4 million gross tonnes, which represents a global market share of 21%. 65% of the world's offshore pipelines are designed and installed to DNV's technical standards. Prior to the merger, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE 1012
In software project management, software testing, and software engineering, verification and validation is the process of checking that a software engineer system meets specifications and requirements so that it fulfills its intended purpose. It may also be referred to as software quality control. It is normally the responsibility of software testers as part of the software development lifecycle. In simple terms, software verification is: "Assuming we should build X, does our software achieve its goals without any bugs or gaps?" On the other hand, software validation is: "Was X what we should have built? Does X meet the high-level requirements?" Definitions Verification and validation are not the same thing, although they are often confused. Boehm succinctly expressed the difference as * Verification: Are we building the product right? * Validation: Are we building the right product? "Building the product right" checks that the ''specifications'' are correctly implemented by the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ISO/IEC 12207
ISO/IEC/IEEE 12207 ''Systems and software engineering – Software life cycle processes'' is an international standard for software lifecycle processes. First introduced in 1995, it aims to be a primary standard that defines all the processes required for developing and maintaining software systems, including the outcomes and/or activities of each process. Revision history ISO/IEC/IEEE 12207:2017 is the newest version, published in November 2017. The IEEE Computer Society joined directly with ISO/IEC JTC 1/SC 7/WG 7 in the editing process for this version. A significant change is that it adopts a process model identical to the ISO/IEC/IEEE 15288:2015 process model (there is one name change, the 15288 "System Requirements Definition" process is renamed to the "System/Software Requirements Definition" process). This harmonization of the two standards led to the removal of separate software development and software reuse processes, bringing the total number of 43 processes from 12 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
DO-178B
DO-178B, Software Considerations in Airborne Systems and Equipment Certification is a guideline dealing with the safety of safety-critical software used in certain airborne systems. It was jointly developed by the safety-critical working group RTCA SC-167 of the Radio Technical Commission for Aeronautics (RTCA) and WG-12 of the European Organisation for Civil Aviation Equipment (EUROCAE). RTCA published the document as RTCA/DO-178B, while EUROCAE published the document as ED-12B. Although technically a guideline, it was a ''de facto'' standard for developing avionics software systems until it was replaced in 2012 by DO-178C. The Federal Aviation Administration (FAA) applies DO-178B as the document it uses for guidance to determine if the software will perform reliably in an airborne environment, when specified by the Technical Standard Order (TSO) for which certification is sought. In the United States, the introduction of TSOs into the airworthiness certification process, a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
European Space Agency
The European Space Agency (ESA) is a 23-member International organization, international organization devoted to space exploration. With its headquarters in Paris and a staff of around 2,547 people globally as of 2023, ESA was founded in 1975 in the context of European integration. Its 2025 annual budget was €7.7 billion. The ESA Human and Robotic Exploration programme includes human spaceflight (mainly through participation in the International Space Station programme); as well as the launch and operation of missions to Mars and Moon. Further activities include science missions to Jupiter, Mercury, the Sun, Earth observation, Asteroid impact avoidance and Telecommunications missions, designing launch vehicles; and maintaining Europe's Spaceport, the Guiana Space Centre at Kourou (French Guiana). Further programmes include space safety, satellite navigation, applications and commercialisation. The main European launch vehicle Ariane 6 is operated through Arianespace ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Independent Verification And Validation Facility
NASA's Independent Verification & Validation (IV&V) Program was established in 1993 as part of an agency-wide strategy to provide the highest achievable levels of safety and cost-effectiveness for mission critical software. NASA's IV&V Program was founded under thNASA Office of Safety and Mission Assurance (OSMA)as a direct result of recommendations made by the National Research Council (NRC) and the Report of the Presidential Commission on the Space Shuttle ''Challenger'' disaster. Since then, NASA's IV&V Program has experienced growth in personnel, projects, capabilities, and accomplishments. The NASA IV&V Program is responsible for providing a systems engineering function that is focused on partnering with missions to improve reliability, find defects earlier, reduce mission development cost, and mitigate operational risk related to the safety- and mission-critical software. Today, Independent Verification and Validation (IV&V) is an Agency-level function, delegated from OSMA ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anti-Ballistic Missile
An anti-ballistic missile (ABM) is a surface-to-air missile designed to Missile defense, destroy in-flight ballistic missiles. They achieve this explosively (chemical or nuclear), or via hit-to-kill Kinetic projectile, kinetic vehicles, which may also have self-maneuvering. Tactical systems are widely deployed to counter Short-range ballistic missile, short and Intermediate-range ballistic missile, intermediate-range ballistic missiles that carry conventional weapon, conventional warheads. Strategic systems, deployed by the United States, Russia, and Israel, are capable of intercepting intercontinental ballistic missiles, typically used to carry Strategic nuclear weapon, strategic nuclear warheads. During the Cold War, the 1972 ABM Treaty limited the nuclear arms race; excessive ICBM production would have been favoured to overwhelm ABM systems. Of the modern strategic ABM systems, only Russia's are themselves armed with nuclear warheads. Current counter-ICBM systems There are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
