What does a Business Analyst do?
Business Analyst spends their time analyzing. They mainly analize business in general - they document systems and processes. They are able to identify issues and define soulutions that can be used to avoid them.
Organisations nowadays often use the term "IT Business Analyst". Although, many companies use both IT and regular Business Analyst term interchangeably, there are some circles that differentiate them. In that cases, IT Business Analyst works largely with methodologies, related to software development.