Case Study: Database Development

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Read the following articles available in the ACM Digital Library:
 
Note: The ACM Digital Library is a Library database. 
 
  • Dual Assessment of Data Quality in Customer Databases, Journal of Data and Information Quality (JDIQ), Volume 1 Issue 3, December 2009, Adir Even, G. Shankaranarayanan.
  •  
  • Process-centered review of object oriented software development methodologies, ACM Computing Surveys (CSUR), Volume 40 Issue 1, February 2008, Raman Ramsin, and Richard F. Paige.
 
Write a 700 Words paper in which you:
 
1. Recommend at least three (3) specific tasks that could be performed to improve the quality of datasets, using the Software Development Life Cycle (SDLC) methodology. Include a thorough description of each activity per each phase.
 
2. Recommend the actions that should be performed in order to optimize record selections and to improve database performance from a quantitative data quality assessment.
 
3. Suggest three (3) maintenance plans and three (3) activities that could be performed in order to improve data quality.
 
4. From the software development methodologies described in the article titled, “Process-centered Review of Object Oriented Software Development Methodologies,” complete the following.
 
   a. Evaluate which method would be efficient for planning proactive concurrency control methods and lock granularities. Assess how your selected method can be used to minimize the database security risks that may occur within a multiuser environment. 
   b. .Analyze how the verify method can be used to plan out system effectively and ensure that the number of transactions do not produce record-level locking while the database is in operation.
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Tour Operator Agency Database

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The Oracle Server may be used to test and compile the SQL Queries developed for this assignment.
A multinational tour operator agency has gained new business growth in the North American market through the use of social media. Its operation has expanded by 50% within six months and the agency requires an enhanced data management strategy to sustain their business operations. Their existing data repository for its reservation processing system is limited in business intelligence and reporting functionalities. The tour operator seeks a database management specialist to assist them in leveraging their data sources to enable them to forecast and project tour sales appropriately.
Imagine that you have been hired to fulfill their need of enhancing the data repository for their current reservation processing system. Upon reviewing the system, you find that the data structure holds redundant data and that this structure lacks normalization. The database has the following characteristics:
  • A table that stores all the salespersons. The table holds their employee id, first name, last name and “Tours sold” field. The “Tours sold” field is updated manually.
  • A table that stores tour customer data and tours sold. The table holds customer name, address, city, state, zip code, tour(s) selected, number of persons in tour, and total amount paid. The current structure will show the customer more than once, if the customer books multiple tours.
  • A tour table that is used as a tour rate sheet which holds the tours offered and the cost per person. Tour rates vary every three (3) months depending on the tourist season.

Technical Paper: Database Administrator for Department Store

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The Oracle Server may be used to test and compile the SQL Queries developed for this assignment.
Imagine that you have been hired as the database administrator for a local department store. The department store has recently expanded by opening five (5) stores within your local region. They have also launched a series of marketing campaigns to attract new customers and increase sales. For your hired role, you will be responsible for creating and maintaining an enterprise-wide database system that will hold the sales and inventory data for the organization. The designed database will help operations in supporting its new business marketing strategy. Using the concepts presented throughout the course, you will develop a plan to create this database and establish a design that aligns with the product sales initiatives of the organization.

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Operational Management Questions

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HOMEWORK ASSIGNMENT 4

Chapter 15 – Problem 9

Sycamore Plastics (SP) is a manufacturer of polyethylene plastic pellets used as a raw material by manufacturers of plastic goods around the U.S. SP currently operate four manufacturing centers in Philadelphia, PA; Atlanta, GA; St. Louis, MO; and Salt Lake City, UT. The plants have different capacities and production costs as indicated in the table below:

Maximum Capacity               Production Costs

PLANT                                                 (x 100,000 lbs.)                    (per 1,000 lbs)

Philadelphia                                                 7.5                                      $325.00

Atlanta                                                          9.0                                      $275.00

St. Louis                                                      12.0                                      $305.00

Salt Lake City                                             10.3                                      $250.00

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Chapter 1 Managerial Accounting

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Managerial Accounting Chapter 1

E1-5 Gala Company is a manufacturer of laptop computers. Various costs and expenses associated with its operations are as follows.

  1. Property taxes on factory building.
  2. Production superintendents’ salaries.
  3. Memory boards and chips used in assembling computers.
  4. Depreciation on the factory equipment.
  5. Salaries for assembly-line quality control inspectors.
  6. Sales commissions paid to sell laptop computers.
  7. Electrical components used in assembling computers.
  8. Wages of workers assembling laptop computers.
  9. Soldering materials used on factory assembly lines.
  10. Salaries for the night security guards for the factory building.

The company intends to classify these costs and expenses into the following categories: (a) direct materials, (b) direct labor, (c) manufacturing overhead, and (d) period costs.

Instructions

List the items (1) through (10). For each item, indicate the cost category which it belongs to.

MORE MANAGERIAL ACCOUNTING QUESTIONS

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Theories of Crime

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Imagine you are a criminologist. Select one of the following crimes: school violence, robbery, murder, driving under the influence (DUI), or retail theft (shoplifting).

Create a 700 words report in a Microsoft Word document that includes the responses to the following:

  • Describe an existing theory (or create your own theory) of crime causation explaining why your selected crime occurs.
  • Explain why your selected theory explains the criminal activity. Does it explain all occurrences of this crime? Why or why not?
  • Explain how you would empirically test your selected criminological theory to see if the theory proved correct. Provide a detailed account for your testing method.
  • Describe the steps you can take, or program you can create, to address the causes behind the criminal activity and reduce its occurrence.

Support your responses with examples.

Cite any sources in APA format.

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