Why Conduct Interviews?

• It will help you design and code programs when the interviews did not cover everything.
• It will help you know when users are asking for things that don't make sense.

IT people need to know the business of IT better than ever.

• Projects are getting bigger and bigger.
• Projects are getting more critical to business waiting for them.

Systems must be designed by the users indirectly (they must set specifications). HOWEVER, most users don't know what they want, and don't understand their jobs very well.

• Seek an understanding of the business and the business problems faced by the user before designing the system
• Need information about behavior of current system or requirements for a new system
• Need to verify understanding (informal review of analysis)

• Much information may only be available from people, even if much is available in records
• The most common problem IT have in interviewing is underestimating the complexity of the problems faced by the users.
• Often you will find your biggest problem is getting users' time.
• Users do not realize how complicated their business is. They have not stopped and counted all the special cases they address each day.
• Users perceive this phenomenon as "You are not listening to me!"
• Often only the first couple of problems or cases mentioned by the user are solved rather than solving everything at once.
      This phenomenon results in systems that do some things very well, but do not actually solve the business needs.

Guidelines for Interviewing

• Plan the interview.
•    Prepare interviewee: appointment, priming questions.
•    Prepare agenda, checklist, questions.
• Listen carefully and take notes (tape record if permitted). Note difficulty with sending cues to the interviewee.
• Review notes within 48 hours.
• Be neutral.
• Seek diverse views.

Types of Interviews

• Interviews: live, face-to-face, with written notes (may be taped)
       List of questions is an "interview schedule"
       Costly approach
       Good for getting detail from a few people
       Good for situations where probes are necessary
  
• Surveys or questionnaires: pen and paper or computer-based inquiry
       More economical approach
       Good for gathering information from many people, or people in different locations
       Good to get overall opinions of users
  

The Interviews/questionnaires should supplement information gained in

Vendor Presentations

Visits to Other Installations

Data Collection

External Research

Chosing Interview Questions

Each question in an interview guide can include both verbal and non-verbal information.

Open-ended questions: questions that have no prespecified answers.

Closed-ended questions: questions that ask those responding to choose from among a set of specified responses.

Potential Interviewing Problems

• Asking the wrong questions and getting the wrong answers
• Interviewing the wrong people at the wrong time
• Creating bad feelings between parties

Group Interviews

• Interview several key people together
• Advantages      More effective use of time.      Can hear agreements and disagreements at once.      Opportunity for synergies.
• Disadvantages      More difficult to schedule than individual interviews      Contradictions and inconsistencies between interviewees.      Follow-up discussions are time consuming.      New interviews may reveal new questions that require additional interviews with those interviewed earlier.

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  Rules of Thumb for an Interview

  • Break in and ask questions if you have them.
  • Do not take too many notes.
  • Listen, listen, listen.