Question w3

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Questions W3

Question 1: The development of a database requires thorough methodology that ensures quality within the solution. Imagine you have been contracted to develop a finance database that will help an organization track monthly expenditures by departments. Using the DBLC, discuss the various activities that you would have to achieve each phase. Assess possible challenges that may exist within each phase. Suggest actions that one can perform in order to overcome these possible challenges. In order to mitigate risks associated with a database, it is essential to consider common sources of database failures. Describe at least two possible database failures that may occur once a database is placed into operation. Suggest actions that may be performed in order to avoid or mitigate these possible failures.

Question 2: One criticism of electronic ballots for elections is that while intuitive for younger voters who are familiar with using a mouse to point and click, elderly voters and motor-impaired users will have difficulty controlling a mouse. Discuss how you would correct this issue so that every demographic would have an equal opportunity to vote. Support your answer. Imagine you have just finished interviewing a recent college graduate for a design position within your company. At the end of the interview, the college graduate remarks that design would be much easier if people conformed to the design, rather than the design having to be accessible to diverse populations. Respond to this comment, addressing the legal, societal, and ethical issues that designers face in regard to human-computer interaction.

Question 3: Evaluate interface design models and describe design issues across human- computer interaction environments associated with these models. Support your response. Building an interface can be broken down into the phases of design and development. Analyze the activities that take place in both phases, and explain why certain activities should be included in design but not in development.

Question 4: Describe these set operations: Intersection, union, and complement. You may use words or Venn diagrams to describe these operations. Consider this scenario. A recent marketing survey on shampoo usage collected

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this information on a group of 100 people: 59 people used Shampoo A. 51 people used Shampoo B. 35 people used Shampoo C. 24 people used Shampoos A & B. 19 people used Shampoos A & C. 13 people used Shampoos B & C. 11 people used all three shampoos.

Use a Venn diagram to show how many people are in each of the seven possible categories. Determine whether any people are not using Shampoo A, B, or C. If so, how many?