COSC 341 Test Questions and Answers Latest Update Graded A+

COSC 341 Test Questions and Answers Latest Update Graded A+ Which of the following is most important in user-centered design? a. An object-oriented development process b. Regular design demonstrations c. Iterative design and user testing d. Including every function each user wants - Answers c. Iterative design and user testing Which three measures are needed to establish how usable a system is? a. Product Responsiveness, Stability and Consistency b. Style guide conformance, Fault tolerance, Size of manual c. User Happiness, Competence, Motivation d. User Effectiveness, Efficiency and Satisfaction e. Price, Colour, Size - Answers d. User Effectiveness, Efficiency and Satisfaction This phase collects all of the necessary requirements for an interactive system of device. - Answers gathering requirements An iterative development methodology is often called a waterfall development approach. TRUE/FALSE - Answers False Continuous information about the current state of the system, and about the results of user's actions. Select one: a. Conceptual model b. Mapping c. Constraints d. Feedback e. Affordance f. Signifier - Answers d. Feedback Briefly explain the difference between internal consistency and external consistency. - Answers external consistency is similarity among other similar services like streaming company designs Internal consistency is similarity within our own service throughout all of the pages and feature designs In this phase a working system is developed, albeit not necessarily the final one. - Answers Prototypes In this phase, developers test and validate the system implementation - Answers Evaluation Action possibilities of a system that are readily perceivable or assumed by a user. - Answers Affordance When during product development is it best to start obtaining user input? a. Testing b. Never c. Requirements definition d. Implementation e. Prototyping - Answers Requirements definition It clarifies an affordance, illustrates or describes what an object can do. - Answers signifier A clue limiting the set of possible actions - Answers constraints The relationship between controls and their actions - Answers Mapping Discoverability - Answers user's ability to discover what it does, how it works, what operations to do to complete a task. Visibility - Answers can a user see the state of a system and possible actions Signifier - Answers communicates appropriate behavior to a user Affordance - Answers is implicit understanding of how to interact with a system. Relationship between the properties of an object and the capabilities of the user that determine just how the object could possibly be used. Feedback - Answers signals that something has occurred after a user interacted with a system. Conceptual model - Answers is an explanation, usually highly simplified, of how something works. The most important during system development is ________________ Select one: a. Using object-oriented development tools b. Understanding the users and their tasks c. Identify stakeholders d. Creating interfaces as consistent as possible e. Following the style guide - Answers b. Understanding the users and their tasks What is true about quantitative data? Select one: a. They are based on the researcher's impressions, interpretations, and prior knowledge. b. They can be based on users' performance on a given task. c. They consist of observational findings that identify design features easy or hard to use. d. The data collecting requires just 5 users. - Answers b. They can be based on users' performance on a given task. Identify non-functional requirements Select one or more: a. The system must forward students grades to the Registrar. b. The system must use Oracle database for storing data