Results 271 to 280 of about 3,824,363 (314)
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A critical assessment of hypertext systems
Proceedings of the SIGCHI conference on Human factors in computing systems - CHI '88, 1988Over forty years ago, Vannevar Bush articulated his vision of a “Memex” machine: “associative indexing, … whereby any item may be caused at will to select immediately and automatically another” [Bush 45]. In the sixties, Engelbart [Engelbart, English 68] built collaborative systems to provide idea structuring and sharing.
Gerhard Fischer +4 more
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Systemic determination of infrastructure criticality
International Journal of Critical Infrastructures, 2013The aim of critical infrastructure (CI) research efforts is to develop strategies to protect infrastructure systems by reducing hazards, risks, and threats from natural and manmade events. Given that no nation has unlimited resources, the current trend is to prioritise infrastructures so that the most ‘critical’ infrastructure systems are given ...
Polinpapilinho F. Katina +1 more
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Beyond methodology choice: critical systems thinking as critically systemic discourse
Journal of the Operational Research Society, 2003Summary: Professional competence in applied disciplines such as OR/MS requires both technical expertise and critically reflective skills. Yet, a widespread misconception has taken hold of the OR/MS community: `critical' and `emancipatory' systems methodologies are opposed to `hard' and `soft' ones as if they were sensible alternatives.
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Proceedings of the 24th international conference on Software engineering - ICSE '02, 2002
Safety-critical systems are those systems whose failure could result in loss of life, significant property damage or damage to the environment. There are many well-known examples in application areas such as medical devices, aircraft flight control, weapons and nuclear systems.
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Safety-critical systems are those systems whose failure could result in loss of life, significant property damage or damage to the environment. There are many well-known examples in application areas such as medical devices, aircraft flight control, weapons and nuclear systems.
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Towards Rust for Critical Systems
2019 IEEE International Symposium on Software Reliability Engineering Workshops (ISSREW), 2019The programming language landscape in software development for aerospace and other safety-critical domains is comprised of low-level languages such as C which require a heavy verification effort, and languages such as Ada which have higher safety guarantees but are often seen as unpopular with developers.
André Pinho, Luis Couto, José Oliveira
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Criticality and Critical Size for Transport Systems
1991In this paper, we discuss the criticality problem for monoenergetic neutron transport with isotropic scattering and fission in an inhomogeneous, bounded and convex subset of R , subject to vacuum boundary conditions. Without the assumption of a finite optical diameter, we prove that the spectral radius of the Peierls integral transport operator is not ...
Paul Nelson, Fan Yu
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Critical periods in the organization of systems
Developmental Psychobiology, 1974AbstractThe general theory of critical periods applies to organizational processes involved in the development of any living system on any level of organization and states that the time during which an organizational process is proceeding most rapidly is the time when the process may most easily be altered or modified.
J P, Scott, J M, Stewart, V J, De Ghett
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Critical systems thinking and practice
European Journal of Operational Research, 2001Abstract Critical systems thinking and the methodologies associated with it were developed precisely to allow analysis of complex societal problems and intervention to resolve such problems. Early approaches employing systems ideas, such as operational research, systems analysis and systems engineering, were suitable for tackling certain well-defined
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Predictability in critical systems
1998Predictability is crucial in critical applications and systems. Therefore, we examine sources of uncertainty for each of the four phases that span a project lifecycle, from initial problem capture, to system implementation, when conducted according to proof-based system engineering principles.
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The Immune System in Critical Illness
Clinics in Chest Medicine, 2008The mammalian immune system comprises a complex network of physical and molecular elements that protect the individual from danger in the environment. An evolutionarily ancient innate immune system recognizes danger through pattern-recognition receptors that are encoded in the genome and mobilizes a rapid and potent but nonspecific response.
John C, Marshall +2 more
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