Over specified
In procurement, overspecified definition refers to the act of defining a requirement in such great detail that it precludes the use of any but the most expensive option. In other words, when a requirement is overspecified, only the most expensive option can meet the definition, making it impossible for less expensive options to compete.
This can happen in a number of ways. For example, a company might require that a vendor have experience with a specific software program, even though there are many similar programs on the market. Or, a company might require that a product be made from a certain material, even though there are many other materials that would work just as well.
Overly specified requirements can also happen when companies try to define every last detail of what they want before they start the procurement process. This leaves no room for vendors to offer creative solutions or alternatives that could save the company money.
The best way to avoid over specifying is to focus on what you need rather than what you want. When writing specifications, use general language and leave some room for interpretation. This will allow vendors to offer a variety of solutions and give you the best chance of finding an affordable option that meets your needs.