Foram encontradas 2.975 questões.
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
In the text above “to find out” means to obtain knowledge of something.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
Serious failure consequences can be a combination of external factors and hardware/software failures.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
Safety considerations have nothing to do with quality assurance.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
As long as software quality is under suspicion everybody refuses to use it.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
Reliability is one of the software developers main concerns.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
Software quality depends basically on two main factors.
Provas
Read the following text to answer item.
Software engineering fundamentals
As long as software quality (reliability and availability attributes in particular) remains suspect, there will be a reluctance to use software in safety-critical applications involving a high cost of failure. However, there is also strong pressure from other quarters to use software in critical applications because of cost and technical advantages; this pressure drives software developers to find ways to produce software with a high reliability.
Safety considerations are also the domain of quality assurance. Some of the tools employed in software safety analyses include failure modes and effects analysis (FMEA), fault tree analysis, event tree analysis, hazard analysis, and Petri nets. Usually these analyses include comprehensive models of hardware, software, and operator performance.
The objective of FMEA is to analyze an information system’s components systematically to determine how a component might fail and evaluate the effect of such a failure on system performance under a variety of operational conditions. The objective is to identify ways in which combinations of external events, operator reactions, and/or hardware/software failures can lead to serious failure consequences. Some analytical approaches (fault tree analysis or event tree analysis, for example) begin by assuming the occurrence of a catastrophic failure and working backwards to find out what logical sequence of events would result in such a failure.
A. Behforooz and F. J. Hudson. Software engineering fundamentals.
Oxford University Press, Inc., 1996, p. 554 (with adaptations).
Based on the text above, judge the following item.
Analytical software safety approaches take into account the fault tree analysis or the event tree analysis only.
Provas
O Governo não é uma entidade abstrata, um instrumento de coerção ou uma força extrínseca da comunidade nacional. Não é um agente de partidos, grupos, classes ou interesses. É a própria imagem refletida da pátria na soma das suas aspirações e no conjunto das suas afinidades. É emanado do povo e, como tal, servo da sua vontade, provedor de suas necessidades, a força humanizada e sensível que preside as relações e o desenvolvimento da sua vida social no sentido da cooperação e da harmonia entre as classes e entre os interesses.
Getúlio Vargas. Discurso de Posse.
Em relação ao texto acima, julgue o item que se segue.
Antes da enumeração iniciada por “servo da sua vontade”, subentende-se a expressão não pode ser.
Provas
O Governo não é uma entidade abstrata, um instrumento de coerção ou uma força extrínseca da comunidade nacional. Não é um agente de partidos, grupos, classes ou interesses. É a própria imagem refletida da pátria na soma das suas aspirações e no conjunto das suas afinidades. É emanado do povo e, como tal, servo da sua vontade, provedor de suas necessidades, a força humanizada e sensível que preside as relações e o desenvolvimento da sua vida social no sentido da cooperação e da harmonia entre as classes e entre os interesses.
Getúlio Vargas. Discurso de Posse.
Em relação ao texto acima, julgue o item que se segue.
O termo “emanado” é empregado, no texto, com o sentido de exercido, realizado, posto em prática.
Provas
O Governo não é uma entidade abstrata, um instrumento de coerção ou uma força extrínseca da comunidade nacional. Não é um agente de partidos, grupos, classes ou interesses. É a própria imagem refletida da pátria na soma das suas aspirações e no conjunto das suas afinidades. É emanado do povo e, como tal, servo da sua vontade, provedor de suas necessidades, a força humanizada e sensível que preside as relações e o desenvolvimento da sua vida social no sentido da cooperação e da harmonia entre as classes e entre os interesses.
Getúlio Vargas. Discurso de Posse.
Em relação ao texto acima, julgue o item que se segue.
O segmento de texto apresentado é constituído por uma narração.
Provas
Caderno Container