Week 8 / Sixth Lecture : Identifying Needs and Establishing Requirements. [Amirali]

in this week class we learnt about all the things that we need for understanding.

What are Requirements?
A requirement is a statement that specifies what an intended product should do, or
how it should perform.

Types of Requirements

• Functional requirements
• Data requirements
• Environmental requirements

1. Physical environment such as how much lighting, noise, and dust is expected in the operational environment.
2. Social environment. The issues raised regarding the social aspects of interaction design, such as collaboration and coordination, need to be explored in the context of the current development.
3. Organizational environment, e.g., how good is user support likely to be and how easily can it be obtained.
4. Technical environment will need to be established: for example, what technologies will the product run on.

• User characteristics
• User goals
• User experience goals

Data gathering

Data gathering is an important part of the requirements activity and also of evaluation.The purpose of data gathering is to collect sufficient, relevant, and appropriate data so that a set of stable requirements can be produced. It does help in determining requirements.

Data-gathering techniques :

1. Questionnaires
2. Interviews
3. Naturalistic observation
4. Studying Documentation