Techniques to Evaluate Mobile Systems, Applications and Services

To out put a great mobile application we must evaluate our product before handing over to the customer, in that case there are many ways to evaluate and test a system. also we gan list down the Evaluation Stages like this,

1.Identify target user
2. Identify user needs
3. Build prototype
4. Evaluate prototype
5. Change prototype
6. Re-evaluate (repeat 5 & 6 as necessary)
7. Beta release (assessment, fine-tuning)
8. Formal release (ongoing assessment, fine tuning)

also we can select users to evaluation select users as close to your target group as possible, and clearly identify any differences (including familiarity with the mobile Internet) Ask for permission to include them in the study Make the level of commitment clear (1 hr? 1 month? Questionnaire? Etc.)  Anonymize the results


So after using uses we can get there feedback by many ways ,below there are some Feedback methods


• Questionnaire:

Ask the user about background, usability, improvements. Pro: Easy to analyze. Con: users don’t introspect well, or even lie; hard to ask non-tech users technologically relevant questions.

• Observation:
Watch the user use the system, (usually with ‘speak aloud’ protocol, plus behindthe-scenes monitoring). Pro: see what really happens. Con: In context?? Observer makes user nervous.


Focus group interviews:
Get small group talking about app (having used it). Pro: A lot comes out. Con: group might not be representative, interviewer can force results

• Diaries: Ask user to record their own observations. Pro: intrusiveness, in context. Con: Must be very easy, brief and structured, or will only be used occasionally (usually when user is annoyed)