Give an example of verification for a 5 floor elevator Give an example of validation for...
Give an example of verification for a 5 floor elevator
Give an example of validation for a 5 floor elevator
Homework Answers
Verification: "Are we building the product right"
• The software should conform to its specification
• Validation: "Are we building the right product" •
The software should do what the user really requires
if a user press a request button at floor 5, an available elevator must arrive at floor 5 soon.
this property can be validated, but NOT verified (SOON is a subjective quantity) .
if a user press a request button at floor 5, an available elevator must arrive at floor 5 within 30 seconds.
this property can be verified (30 seconds is a precise quantity)
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Give an example of verification for a 5 floor elevator
Give an example of validation for...
What issues are related to data verification and validation, relevant to information systems ?
What issues are related to data verification and validation, relevant to information systems ?
Jake stands in an elevator. As the elevator speeds up departing the 1st floor, and then...
Jake stands in an elevator. As the elevator speeds up departing the 1st floor, and then slowing down approaching 11th floor, Jake feels his weight first increasing, then decreasing. The magnitude of the acceleration of the elevator is the same 3.7 m/s2 in both cases (but the direction is different). If Jake feels 307.4 N heavier when he is departing the 1st floor, than when he is approaching the 11th floor, then what is his true weight? (Weight should be...
General question for validation system. 1. Describe verification requirement analysis: planning, ...
General question for validation system. 1. Describe verification requirement analysis: planning, data, Documentation,etc for Anti-lock-Brake system. please answer this question nice and neat.
An elevator carries a group of people from the ground floor to the third floor of...
An elevator carries a group of people from the ground floor to the third floor of a building. The elevator and passengers have a combined mass of 2600 kg. The height of one floor is 4.5 m. If the elevator moves at a constant speed and goes from the ground floor to the third floor in one minute, calculate the work done on the elevator by gravity, the work done on the elevator by the cable, the kinetic energy of...
5. You work on the 13th floor of a 15-floor building. The only elevator moves continuously...
5. You work on the 13th floor of a 15-floor building. The only elevator moves continuously back and forth between floors 0 through 15 and stopping time at each floor is negligible (a) You find it irritating that every time you want to go home for the day, the elevator is almost always going up when it arrives at your floor. What is the explanation for this? Compute the probability of this occurring. (b) Write the expected value of the...
You board a stationary elevator on the ground floor. A uniform vertical gravitational field g =...
You board a stationary elevator on the ground floor. A uniform vertical gravitational field g = −9.8m/s2 is present. Before the elevator starts moving, you drop a ball from a height of 2 m above the floor. a) How long does it take for the ball to reach the floor of the elevator? b) How long does it take for the ball to travel from the floor to its maximum height above the floor (at which point you catch it...
A manual switch controlled 8-floor elevator is designed to operate such that when the master switch...
A manual switch controlled 8-floor elevator is designed to operate such that when the master switch S=0, it moves up (0,1,2. . . ) and when the switch S=1, it moves down (7,6,5. . . ). However, it has been observed that the elevator is experiencing the following problems: 1. When the S=1, the elevator instead of going down gets stuck on the current floor and does not move. (for example, if it is at the fourth floor, it remains...
A block of mass 47 kg is situated on the floor of an elevator that is...
A block of mass 47 kg is situated on the floor of an elevator that is accelerating upward at 4.95 m/s2 . What magnitude force does the elevator floor exert on the block?
a(m/s) F1. An elevator is on the 20° floor of a 40-floor building. At time 1-0,...
a(m/s) F1. An elevator is on the 20° floor of a 40-floor building. At time 1-0, the elevator is at rest and the doors have just finished closing A student on the elevator has a smartphone with an app that can measure vertical acceleration. The student takes data for the 10 seconds starting at time the acceleration data is shown in the graph on the right. Let positive values represent upward acceleration (a) Qualitatively and quantitatively describe the motion of...
The manager of a multi-floor hotel reports the wait time for an elevator on any floor...
The manager of a multi-floor hotel reports the wait time for an elevator on any floor follows a uniform distribution. The shortest wait time is 2 minutes and the hotel guarantees guests won’t wait more than 6 minutes. 10% of the time, guests wait less than k minutes for the elevator. Find k. (Enter answer rounded to two decimals.) ___________________
5. You work on the 13th floor of a 15-floor building. The only elevator moves continuously back and forth between floors 0 through 15 and stopping time at each floor is negligible (a) You find it irritating that every time you want to go home for the day, the elevator is almost always going up when it arrives at your floor. What is the explanation for this? Compute the probability of this occurring. (b) Write the expected value of the...
a(m/s) F1. An elevator is on the 20° floor of a 40-floor building. At time 1-0, the elevator is at rest and the doors have just finished closing A student on the elevator has a smartphone with an app that can measure vertical acceleration. The student takes data for the 10 seconds starting at time the acceleration data is shown in the graph on the right. Let positive values represent upward acceleration (a) Qualitatively and quantitatively describe the motion of...
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