A turnkey project or contract described by Duncan Wallace (1984) is:  The volume of private sector investment is generally small and short-term. This type of agreement generally does not provide a strong incentive to conclude a project at an early stage. This type of private sector involvement is also called design construction. The following figure shows the typical structure of a turnkey contract. Turnkey refers to something that is immediately ready to use, usually used for the sale or delivery of goods or services. The word is an indication that the customer, after receiving the product, must simply turn the contact key to make it operational, or that the key must be handed over to the customer.  Turnkey is often used in the construction industry, for example when it comes to the pooling of materials and work by the builder or general contractor to complete the house without the owner`s involvement. The word is often used to describe a house built on the developer`s land, with developer funding ready to move in for the client. When a contractor builds a “turnkey house,” he frames the structure and finishes the interior; It`s all over to the cabinets and carpets. Turnkey is also commonly used in motorsport to describe a car that is sold with a powertrain (engine, gearbox, etc.) unlike a vehicle that is sold without a vehicle, so that other components can be reused.
The term turnkey is also often used in the technology sector, most often to describe prefabricated computer “packages” in which everything is needed for a particular type of task (for example. B audio edition) is compiled and sold in packages by the supplier. [Citation required] It is often a computer with pre-installed software, different types of hardware and accessories. These packages are commonly referred to as appliances. A website with a prefabricated solution and certain configurations is called turnkey website. A turnkey project or turnkey process (also written turnkey) is a type of project designed to be sold to any buyer as a final product. This runs counter to the Build-to-Order in which the designer builds an item to the precise specifications of the buyer or when an incomplete product is sold on the assumption that the buyer would finalize it. A turnkey computer system is a complete computer with hardware, operating system and applications specially designed and sold for certain commercial requirements.