Work Visa – You should have a valid offer letter from the employer from the country that you want to apply for, visa is valid as per the employment contract
Business Visa – Now Business visa is different in every individual perspective, few think Business visa will let them do business in that country. Business visa is ideally a visit visa which allows the applicant to attend business conferences and meetings. The validity of this visa is limited. If one wants to start a business then they need to apply for Investor Visa or Entrepreneur visa.