Unit 2 #2

Which of the following actions are generally helpful in program development?

1. Consulting potential users of the program to identify their concerns

2. Writing and testing small code segments before adding them to the program

3. Collaborating with other individuals when developing a large program

• 
  I and II only

• I and III only

• 
  II and III only

• I, II, and III

A certain social media application is popular with people across the United States. The developers of the application are updating the algorithm used by the application to introduce a new feature that allows users of the application with similar interests to connect with one another. Which of the following strategies is LEAST likely to introduce bias into the application?

• Enticing users to spend more time using the application by providing the updated algorithm for users who use the application at least ten hours per week

• Inviting a random sample of all users to try out the new algorithm and provide feedback before it is released to a wider audience

• Providing the updated algorithm only to teenage users to generate excitement about the new feature

• Testing the updated algorithm with a small number of users in the city where the developers are located so that immediate feedback can be gathered

The developers of a music-streaming application are updating the algorithm they use to recommend music to listeners. Which of the following strategies is LEAST likely to introduce bias into the application?

• Making recommendations based on listening data gathered from a random sample of users of the application

• Making recommendations based on the most frequently played songs on a local radio station

• Making recommendations based on the music tastes of the developers of the application

• Making recommendations based on a survey that is sent out to the 1,000 most active users of the application

A company that develops educational software wants to assemble a collaborative team of developers from a variety of professional and cultural backgrounds. Which of the following is NOT considered a benefit of assembling such a team?

• 
  Collaboration that includes diverse backgrounds and perspectives can eliminate the need for software testing.

• Collaboration that includes diverse backgrounds and perspectives can help the team anticipate the needs of a variety of software users.

• Collaboration that includes diverse backgrounds and perspectives can help the team avoid bias.

• Collaboration that includes diverse backgrounds and perspectives can reflect the strengths of the individual team members.

Three students in different locations are collaborating on the development of an application. Which of the following strategies is LEAST likely to facilitate collaboration among the students?

• 
  Having all three students participate in frequent video chat sessions to discuss ideas about the project and to provide feedback on work done so far

• Having all three students use an online shared folder to contribute and discuss components to be considered for use in the application

• Having all three students write code independently and then having one student combine the code into a program

• Having all three students work in a shared document that each can edit to provide comments on the work in progress

A software company is designing a mobile game system that should be able to recognize the faces of people who are playing the game and automatically load their profiles. Which of the following actions is most likely to reduce the possibility of bias in the system?

• Testing the system with members of the software company’s staff

• Testing the system with people of different ages, genders, and ethnicities

• Testing the system to make sure that the rules of the game are clearly explained

• Testing the system to make sure that players cannot create multiple profiles

A mobile game tracks players’ locations using GPS. The game offers special in-game items to players when they visit real-world points of interest. Which of the following best explains how bias could occur in the game?

• Points of interest may be more densely located in cities, favoring players in urban areas over players in rural areas.

• Some players may engage in trespassing, favoring players in urban areas over players in rural areas.

• Special items may not be useful to all players, favoring players in urban areas over players in rural areas.

• Weather conditions may be unpredictable, favoring players in urban areas over players in rural areas.

Which of the following is NOT a benefit of collaborating to develop a computing innovation?

• Collaboration can decrease the size and complexity of tasks required of individual team members.

• Collaboration can make it easier to find and correct errors during the development process.

• Collaboration eliminates the need to resolve differences of opinion.

• Collaboration facilitates multiple perspectives in developing ideas.

A company that develops mobile applications wants to involve users in the software development process. Which of the following best explains the benefit in having users participate?

• Users can identify and correct errors they encounter when using released versions of the software.

• Users can review the algorithms used in the software to help improve their efficiency.

• Users can provide documentation for program code at the end of the software development process.

• Users can provide feedback that can be used to incorporate a variety of perspectives into the software.

Which of the following actions is most likely to raise legal or ethical concerns?

• An analyst writes a program that scans through a database of open-access scientific journals and creates a document with links to articles written on a particular topic.

• 
  A computer scientist adds several features to an open-source software program that was designed by another individual.

• A musician creates a song using samples of a copyrighted work and then uses a Creative Commons license to publish the song.

• A public interest group alerts people to a scam that involves charging them for a program that is available for free under a Creative Commons license.