Ch 5: Information Gathering: Unobtrusive Methods Flashcards
Recognize the value of unobtrusive methods of information gathering. Understand the concept of sampling for human information requirements analysis. Construct useful samples of people, documents, and events for determining human information requirements. Create an analyst's playscript to observe decision maker's activities. Apply the STROBE technique to observe and interpret a decision maker's environment and interactions with technologies.
Define what is meant by sampling.
List four reasons a systems analyst would want to sample data or select representative people to interview.
What are the four steps to follow to design a good sample?
List the three approaches to complex random sampling.
Define what is meant by stratification of samples.
What effect on sample size does using a greater confidence level have when sampling attribute data?
What is the overriding variable that determines how many people a systems analyst should interview in depth?
What information about a decision maker does an analyst seek to gain from observation?
List five steps to help an analyst observe a decision maker’s typical activities.
In the technique known as the analyst’s playscript, who is the actor?
In an analyst’s playscript, what information about managers is recorded in the right-hand column?
Noting that the idea of STROBE originally came from the world of film, what does the systems analyst’s role resemble?
List the seven concrete elements of a decision maker’s physical environment that a systems analyst can observe by using STROBE.
