(Data processing) a. A national medical testing laboratory wants a new computer system to analyze its test results. The system must be capable of processing each day’s results as well as retrieving and outputting a printed report of all results meeting certain criteria, such as all results for a particular doctor or for hospitals in a certain state. Determine three or four major
b. Suppose someone enters incorrect data for a test result, and the error is discovered after the system has entered and stored the data. What program unit is needed to correct this problem? Discuss why such a program unit might or might not be required by most systems.
c. A program unit has been developed that allows users to change data that has been entered and stored incorrectly. Discuss the need for including an “audit trail” that would allow reconstructing the changes later as well as when they were made and who made them.
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Chapter 2 Solutions
C++ for Engineers and Scientists
- (Heat transfer) The formula developed in Exercise 5 can be used to determine the cooling time, t, caused only by radiation, of each planet in the solar system. For convenience, this formula is repeated here (see Exercise 5 for a definition of each symbol): t=Nk2eAT3fin A=surfaceareaofasphere=4r2 N=numberofatoms=volumeofthespherevolumeofanatom Volume of a sphere sphere=43radius3 The volume of a single atom is approximately 11029m3 . Using this information and the current temperatures and radii listed in the following chart, determine the time it took each planet to cool to its current temperature, caused only by radiation.arrow_forward1) An aerospace engineer is volunteering as a mentor for a high school team competing in a national contest to build a robot that straightens boxes. The plan was to help the students on weekends for at most eight to ten hours. As the national competition nears, the robot's motor overheats, and the engine burns out. He wants to help the dispirited students and believes his mentoring commitment requires he do more. But doing so would involve additional evening work that could potentially harm his work, if not his family.arrow_forwardNoted: I want to this answer in just simple C language program.THANK YOU An iron rod is graded based on the following criteria: (i) magnetite must be greater than 50 (ii) calcium carbonate content must be less than 0.7 (iii) other adulterants must be greater than 5600 The grades are as follows: Grade is A if all three conditions are met Grade is B if conditions (i) and (ii) are met Grade is C if conditions (ii) and (iii) are met Grade is D if conditions (i) and (iii) are met Grade is E if only one condition is met Grade is F if none of the conditions are met Write a program, which will require the user to give values of magnetite, calcium carbonate and other adulterants under consideration and output the grade of the iron.arrow_forward
- *Explain with details* A clinical laboratory has a vacancy for a medical transcriptionist. The job requires candidates to be able to type at least 60 words per minute with an error rate of no more than 5%. Candidate A has more than 10 years in medical transcription, types 65 words per minute with a 2% error rate. She also has a very strong work record; however, she has been diagnosed with strong indications of carpel tunnel syndrome in her right wrist. To limit the tingling sensation and pain she occasionally experiences, she wears a wrist brace that extends over the lower portion of her hand on both sides and is visible even when she wears long sleeves. Candidate A applies in person for the job. She completes the application and takes a typing test. Impressed with her application, resume, and score on the typing test, the recruiter offers to immediately interview Candidate A for the position. One week later, Candidate A calls the employer to determine her status for employment. The…arrow_forward1. (2 s) A company's employee is arrested for running a scam website and the company's name is all over the news. The person had been hired into the company's IT department to work at the help desk and it turns out that he was on parole for another felony. The employee had not lied in his application about being on parole, but according to the company's policies the hiring manager did not get to see the whole personnel file for new hires. a) Did the HR staff that should have reported to the hiring manager the candidate's conviction and parole commit an ethical lapse, or was it just a clerical error?arrow_forward(a) In computer science and operations research, a Genetic Algorithm (GA) is a metaheuristic inspired by the process of natural selection that belongs to the larger class of Evolutionary Algorithms (EA). Name and describe with example the main features of Genetic Algorithms.arrow_forward
- Problem 1. - Expenditure Cycle Walker Books, Inc. (Manual System withMinimal PC Support) Purchases System The purchases process begins with the purchasing agent, who monitors the levels of books available via a computer terminal listing current inventory. Upon noticing deficiencies in inventory levels, the agent manually generates four hard copies of a purchase order: one is sent to accounts payable, one is sent to the vendor, one is sent to the receiving department, and the last is filed within the department. Vendors will generally ship the products within five business days of the order. When goods arrive in the receiving department, the corresponding packing slip always accompanies them. The receiving department clerk unloads the goods and then reconciles the packing slip with the purchase order. After unloading the goods, the clerk manually prepares three hard copies of the receiving report. One copy goes with the goods to the warehouse, another is sent to the purchasing…arrow_forwardProblem 1. - Expenditure Cycle Walker Books, Inc. (Manual System withMinimal PC Support) Purchases System The purchases process begins with the purchasing agent, who monitors the levels of books available via a computer terminal listing current inventory. Upon noticing deficiencies in inventory levels, the agent manually generates four hard copies of a purchase order: one is sent to accounts payable, one is sent to the vendor, one is sent to the receiving department, and the last is filed within the department. Vendors will generally ship the products within five business days of the order. When goods arrive in the receiving department, the corresponding packing slip always accompanies them. The receiving department clerk unloads the goods and then reconciles the packing slip with the purchase order. After unloading the goods, the clerk manually prepares three hard copies of the receiving report. One copy goes with the goods to the warehouse, another is sent to the purchasing…arrow_forwardPlease refer to this textbook: “A. Silberschatz, P. B. Galvin and G. Gagne, “Operating System Principles,”7th Edition, John Wiley & Sons Inc., 2006.” And answer the following questions: Question:22 Assume Program X and Program Y run in different processes. At some time point, the two programs need to exchange data with each other. A. Can the data exchange be made as efficient as if the two programs were run by different threads in the same process? If so, explain how this can be done. If not, please describe the technical issues. B. If Y needs to wait for X, explain how this can be achieved with a semaphore.arrow_forward
- (Article computer information systems) If you are a manager of an ABC company that produces computer parts (motherboard, hard disk, RAM…..). Your company has a budget deficit and you need to control your costs and reduce expenses by determining the number of employees they need to maintain high quality goods and services. Discuss Three strategies to contains these personnel costs.arrow_forward*PLEASE SOLVE USING PYTHON* You are a nasa engineer who needs to monitor the situation every time a probe uses its thrusters. For a given day you are given the planned times when the thruster will be used. You need to be monitoring the situation at those boost times and for 5 minutes after. You want to figure out if you can take a break for a certain number of minutes. To achieve this you are given the planned boost times in in hours and minutes with an am/pm. And you are given a desired break time in minutes. Output if you can take the break or not given the monitoring you have to do. For example: If you know the thruster is fired at 5:00am and 12:50pm. You need to be monitoring the situation from 5:00am to 5:05am and again from 12:50pm to 12:55pm. Apart from those times you are free to take a break. So a 5 minute break is possible. But a 12 hour break is not possible.arrow_forward(ix) Environments that are fully observable, deterministic, finite, static and discrete are called as environment.. (a) planning (b) pre planning (c) partial planning (d) classical planning (x) The various planning formalisms used in Al have been systematized within a standard syntax called the (a) Planning Domain Definition Language (b) Planning Language (c) Sequential Query Language 7 (xi)) employs a fixed standard of performance. (d) Domain Planning Definition Language is designed to tell the learning element how well the agent is doing and (a) performance element (b) critic (c) problem generator (d) learning elementarrow_forward
- C++ for Engineers and ScientistsComputer ScienceISBN:9781133187844Author:Bronson, Gary J.Publisher:Course Technology PtrC++ Programming: From Problem Analysis to Program...Computer ScienceISBN:9781337102087Author:D. S. MalikPublisher:Cengage Learning