CHAPTER 7: DATA MODELING USING THE ENTITY-RELATIONSHIP (ER) MODEL Answers to Selected Exercises 7.16 - Consider the following set of requirements for a UNIVERSITY database that is used to keep track of students’ transcripts. This is similar but not identical to the database shown in Figure 1.2: (a) The university keeps track of each student’s name‚ student number‚ social security number‚ current address and phone‚ permanent address and phone‚ birthdate‚ sex‚ class (freshman‚ sophomore‚
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The evolution of programming has seen a number of programming language generations and programming paradigms or styles. Write notes describing and distinguishing the different programming paradigms that have been used to date and also highlight the merits and demerits of each programming paradigm. (30) A programming language is a system of signs used to communicate a task/algorithm to a computer‚ causing the task to be performed. The task to be performed is called a computation‚ more broadly‚ a
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COMPUTER PROGRAMMING Programming languages for computers are developed with the primary objective of facilitating a large number of persons to use computers without the need to know in detail the internal structure of a computer. Languages are matched to the type of applications which are to be programmed using the language. The ideal language would be one which expresses precisely the specification of a problem to be solved‚ and converts it into a series of instructions for a computer. It is not
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common form of the product-mix linear programming seeks to find the quantities of items in the product mix that maximizes profit in the presence of limited resources. -True Linear programming helps operations managers make decisions necessary to allocate resources. -True In linear programming‚ the unit profit or unit contribution associated with one decision variable can be affected by the quantity made of that variable or of any other variable in the problem. -False What combination of x
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with the appropriate description on the right by typing in the corresponding letter under the Answer column. Activity or Purpose Answer Description 1. Modular programming G A. English-like statements to document the outline of a program 2. Pseudocode A B. Translating design into statements usable by a computer 3. Problem analysis D C. Statements that determine the execution paths of a program 4. Program design F D. Identifying desired outputs based on provided input 5. Program
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Write two paragraphs (approximately 200 words) about how interest rates affect our purchasing decisions. Answer: Interest rates is the price that the lender sets for the borrower to pay as a fee to borrow money. Depending on whether or not interest rates are high or low‚ you may or may not qualify for a specific loan. When interest rates are higher‚ we as an economy have less money‚ and most people save for what they want to purchase rather than finance. When interest rates are higher‚ less
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Case Study: “Giving and Receiving on Freecycle.org” Freecycle.org or as nicknamed by users‚ “Freebay” is a great way for individuals to give away items that they no longer want. It is very apparent that this website has achieved such high levels of success and growth in such a short period of time‚ due to the fact that they are different from all other sites. Everyone has become accustomed to a world where nothing is free. Human beings are used to to having to pay for anything they receive
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viewers‚ S soap opera ads are bought‚ they will be seen by 5S men and 20 S women. If F football Ads are bought they will be seen by 17F men and 7F women. Q&H wants at least40 million men and at least 60 million women to see its ads. • Formulate the NLP • Suppose the number of women reached by F football ads and S soap opera ads is 7F+ 20 S ‐0.2 (FS). Why might this be a more realistic representation of the number of women viewers seeing Q&H’s ads? 24 Example 3: cont’d
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Changing Personnel Profiles Kris Krumwiede HSM/220 – Human Services Administration: So You Want to Help People 4/28/2013 Veronica Cole The four steps that an organization should take when changing its personnel profile are as follows: 1. Project personnel needs 2. Plan for achieving the desired personnel profile 3. Implement changes necessary to achieve the plan’s goals and objectives 4. Monitor and evaluate the effects of changes
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Essay Object oriented programming was developed because limitation was discovered in earlier approaches to programing. The evolution to the object oriented programming is based on the following previous languages. Evolution in computer programming languages: In the earlier time‚ at the beginning of programming the “Punch Card“ was used for the programming purpose. Then with the passage of time human tried to work on the binary digits called “Machine Language”. 1. Machine Language In the machine
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