The social security number will be part of the template. It will provide the company everything it has to know about the employee. If he has an outstanding warrant of arrest from the police, if he is an outstanding debt, what responsibility he has, what violations he did, etc.
Now ASP.Net is the most preferable choice for most of the web developers for creating web form templates. This programming code is used to manage a consistent look and smooth interface in a website. Its easy to manage a structurally similar design in all your pages. If your business organization is trying to change the templates, it becomes very difficult to change each single page. If you don't have a specific structure or specific web form templates, it will be more difficult for you to manage this.