public class Product : EntityBase<int>, IAggregateRoot, IProductAttribute
    {
        public string Name { get; set; }
        public decimal Price { get; set; }
        public int SalesAmount { get; set; }
        public string Introduction { get; set; }
        public Brand Brand { get; set; }
        public Category Category { get; set; }

        protected override void Validate()
        {
            throw new NotImplementedException();
        }

        public override string ToString()
        {
            return this.Name;
        }
    }