CHAPTER 17 DATA MODELING AND DATABASE DESIGN SUGGESTED ANSWERS TO DISCUSSION QUESTIONS 17.1 Why is it not necessary to model activities such as entering information about customers or suppliers‚ mailing invoices to customers‚ and recording invoices received from suppliers as events in an REA diagram? The REA data model is used to develop databases that can meet both transaction
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technique used to expedite the investigation of system requirements. ____ 16. A physical model shows what the system is required to do in great detail‚ without committing to any one technology. ____ 17. The modern structured analysis technique uses data flow diagrams (DFDs) and entity-relationship diagrams (ERDs). ____ 18. One of the
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Title: Data Analysis Word count: 1002 Contents: Introduction Procedure Findings Conclusion References Introduction: For my Data Analysis assignment I am required to present statistical data in an appropriate format. I will collect and analyse data using spread sheets‚ charts and graphs within a formal report. My report will present findings on how the internet has affected the UK economy and how is it transforming us as a nation? Procedure: I am going
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text mining? The main practical application of text mining in this case was CRM focused and dealt with the process of how HP employed SAS Text Miner to determine what its most valuable customers were discussing and then how to develop new customer service strategies based on the recurring themes extracted from text mining. In HP’s case they wanted to monitor public insights and opinions (i.e. review sites‚ blogs) and bring science to customer relationships. How do you think text mining techniques
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Crime Data Comparison Comparing similar crimes‚ in metropolitan area such as Phoenix and Dallas. The FBI Uniform Crime Report (UCR) data shows in 2009 Phoenix had 76 reported murders‚ and Dallas with 86. Dallas with a lower population number of 1‚290‚266 had higher murder rate‚ Phoenix with population of 1‚597‚397 reported in 2009. Reported murder rates dropped in both areas in 2010‚ Dallas with 73‚ and Phoenix with a reported 50. “National reports a decrease of 6.2 percent of violent crimes during
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BSBHRM501B- Manage Human Resources Services. Morobe Mining Joint Ventures (PNG) Human Resources Services. Chosen Area: Career management Services: Dealing with complaints Implementing new legislation and laws Mentoring and coaching WH&S ‚ pay role i.e. leave entitlement Recruitment/ advertising Training for possible advancement Strategic and Operational Plans: Valuing our employees: By making all employees
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_____40 cm________ Width ____35 cm_________ Area ________1400cm2_______ Volume ____11200cm3________ 4) Determine the mass of the objects listed below (in grams). Pay attention to the units. Since you do not have a metric scale‚ we will provide you data to work with. A) Baseball Mass (measurement 1): ____.145__kg Mass (measurement 2): ____145.05_ g Mass (measurement 3): 145‚750.77 mg Mass (average): __________g Convert: ___________kg B) Piece of fruit Mass (measurement 1): ____310____ g Mass
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Data Processing Data Processing is the term generally used to describe what was done by large mainframe computers from the late 1940’s until the early 1980’s (and which continues to be done in most large organizations to a greater or lesser extent even today): large volumes of raw transaction data fed into programs that update a master file‚ with fixed-format reports written to paper. Number System A numeral system (or system of numeration) is a writing system for expressing numbers‚ that is
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Research Project - Data Protection Data can be collected by organisations such as the websites we use daily‚ such as Facebook and Twitter. They have our information such as our age‚ date of birth‚ home address and other personal information which we would not share with strangers‚ and it is their job to protect that data‚ so that it doesn’t get into the wrong hands‚ such as scammers. Organisations may collect information from you in a number of ways‚ over the internet‚ over the phone‚ or also
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Process in Houston CIVT 301 Outline Wastewater collection data in Houston What is sewage treatment? Where does wastewater come from? Factors that affect the flow of pipelines Industrial wastewater? Storm water/ Data The treatment plant operator Sources of wastewater Why treat wastes Waste water treatment facilities Treatment processes Drinking water What can be done to help? Wastewater collection data in Houston 640 square miles area 3 million citizens served 6‚250 miles
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