Engineering Product Development

The first person to contact is a suitable engineer with relevant experience, this can be done via Freelance (www.getafreelancer.com), or other contracting site, or much better if you have someone in your locality then you can get together and discuss the technical part of the project. Should you not be technical then this is usually a great learning experience and you will come away more immersed in your project.

The market research required should be completed at the business plan stage; the amount to do is very dependent on your market and type of product.

If you have second thoughts on developing your own product, then you could consider approaching companies that would develop and sell it on your behalf giving you a royalty on each sale.