Who should measure the effectiveness of Information System s

A requirement is simply a statement of what the system must do or what characteristics it needs to have. Requirements written from the perspective of user and focus on user needs are called __(71)__. Requirements written from the developer's perspective and describe how the system will be implemented are called __(72)__. Requirements evolve from detailed statemens of business capabilities that a system should have to detailed statements of the technical way in whick the capabilities will be implemented in the new system. Requirements can be either functional or nofunctional in nature. For example, during the analysis phase of travel vehicles sales system, the system that must have the ability to search for available inventory is __(73)__. The requirement that the system should be able to work on any Web browser belongs to __(74)__. That customer personal information is protected in compliance with the Data Protection Act is a requirement of __(75)__.
（72）应选？

A.operational requirements
B.business requirements
C.technical requirements
D.system requirements

Passage 1
A concept car developed by Japanese company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over tired drivers off the road.
The car's sensors check odors inside the car and monitor a driver's sweat for traces of alcohol. An in-car computer system can issue an alert or even lock up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed' firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver's palm.
Other carmakers have developed similar detection systems. For example, Sweden's Volvo has developed a breathalyzer attached to a car's seat belt that drivers must blow into before the engine will start.
Nissan's new concept vehicle also includes a dashboard-mounted camera that tracks a driver's alertness by monitoring their eyes. It will sound an alarm and issue a spoken warning in Japanese or English if it judges that the driver needs to pull over and rest.
The car technology is still in development, but general manager Kazuhiro Doi says the combination of different detection systems should improve the overall effectiveness of the technology."For example, if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would still be used," Doi says. Nissan has no specific timetable for marketing the system, but aims to use technology to cut the number of fatalities involving its vehicles to half 1995 levels by 2015.
The car's seat belt can also tighten if drowsiness is detected, while an external camera checks that the car is keeping to its lane properly. However, Doi admits that some of the technology, such as the alcohol odor sensor, should be improved. "If you drink one beer, it's going to register, so we need to study what's the appropriate level for the system to activate," he says.

According to Doi,__________.
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A．the overall effectiveness of the detection technology has improved
B．Nissan is making a timetable to market the detection system
C．it is impossible to improve the'overall effectiveness of the detection system
D．Nissan aims to improve the detection technology to reduce the fatality rate

Passage 1
A concept car developed by Japanese company Nissan has a breathalyzer-like detection system and other instruments that could help keep drunk or over tired drivers off the road.
The car's sensors check odors inside the car and monitor a driver's sweat for traces of alcohol. An in-car computer system can issue an alert or even lock up the ignition system if the driver seems over-the-limit. The air odor sensors are fixed' firmly and deeply in the driver and passenger seats, while a detector in the gear-shift knob measures perspiration from the driver's palm.
Other carmakers have developed similar detection systems. For example, Sweden's Volvo has developed a breathalyzer attached to a car's seat belt that drivers must blow into before the engine will start.
Nissan's new concept vehicle also includes a dashboard-mounted camera that tracks a driver's alertness by monitoring their eyes. It will sound an alarm and issue a spoken warning in Japanese or English if it judges that the driver needs to pull over and rest.
The car technology is still in development, but general manager Kazuhiro Doi says the combination of different detection systems should improve the overall effectiveness of the technology."For example, if the gear-shift sensor was bypassed by a passenger using it instead of the driver, the facial recognition system would still be used," Doi says. Nissan has no specific timetable for marketing the system, but aims to use technology to cut the number of fatalities involving its vehicles to half 1995 levels by 2015.
The car's seat belt can also tighten if drowsiness is detected, while an external camera checks that the car is keeping to its lane properly. However, Doi admits that some of the technology, such as the alcohol odor sensor, should be improved. "If you drink one beer, it's going to register, so we need to study what's the appropriate level for the system to activate," he says.
In the UK, some research groups are using similar advanced techniques to understand driver behavior and the effectiveness of different road designs.
According to Doi,__________.

A. the overall effectiveness of the detection technology has improved
B. Nissan is making a timetable to market the detection system
C. it is impossible to improve the'overall effectiveness of the detection system
D. Nissan aims to improve the detection technology to reduce the fatality rate

A requirement is simply a statement of what the system must do or what characteristics it needs to have. Requirements evolve from broad statements of overall （71）from the system to detailed statements of the business capabilities that a system should support to detailed technical statements of the way in which the capabilities will be implemented in the new system. （72）focus on describing how to create the software product that will be produced from the project Nonfunctional requirements are primarily used in the design phase when decisions are made about the user interface, the hardware and software, and the system's underlying architecture. The system's physical and technical environments would be considered （73）. The speed, capacity, and reliability of the system belong to （74）.（75）describes that who has authorized access to the system under what circumstances.

（74）应选？

A.security requirement
B.performance requirement
C.technical requirement
D.information requirement