Dependencies.cs

namespace NDependExperiments
{
    public class DataBaseOperation
    {
        public void Store(object obj) {/** Do stuff **/}
    }
    class BusinessOperations
    {
        private readonly DataBaseOperation dbConnection = new DataBaseOperation();

        public void CreateNewUser(string userName){/** Do stuff **/}
    }
    class Visualisation
    {
        private readonly BusinessOperations businessLogic = new BusinessOperations();

        public void Visualize() {/** Do stuff **/}
    }
    class Program
    {
        static void Main(string[] args)
        {
            new Visualisation().Visualize();
        }
    }
}