Data Gathering is used to identify user needs, establish requirements and for evaluation purposes. Not only in mobile interface design but also in any discipline data gathering is important as it helps to understand the the real world user needs and it helps to map real world user needs with system/ application requirements. this helps developers and designers to understand the real world user needs and to design and develop the product or services accordingly. Therefore if the data gathering was not done properly to capture user requirements in the first place, the product/service may go wrong and will not be able to satisfy the user. there are few different techniques those can be used for data gathering.
Why do we need data gathering?
To find answers to following questions.
Who is this system for?
What do these people want to do?
Why are they doing it?
Where and When do they will they need to do it?
But if the correct information is not captured for the above questions, the
Why do we need data gathering?
To find answers to following questions.
Who is this system for?
What do these people want to do?
Why are they doing it?
Where and When do they will they need to do it?
But if the correct information is not captured for the above questions, the
requirements will be inaccurate and then it will lead to a less useful design that will result a poor user satisfaction with the final product.