The phrase "a draft specification" is correct and usable in written English.
You can use it when referring to an initial version of a document that outlines the requirements or details of a project or product.
Example: "Before we finalize the project, we need to review a draft specification to ensure all requirements are met."
Alternatives: "preliminary specification" or "initial specification".
**AirPort Extreme is based on an IEEE 802.11n draft specification.
Last week we looked at how some browsers and plug-ins were adopting storage-related API's that are a part of the new HTML5 draft specification.
A dynamic surface leaching test (DSLT) has been proposed for testing of monolithic materials and described in a Draft Technical Specification (FprCEN/TS 16637-2 2013 [4], temporarily named TS-2).
Initially, the information available for the draft specification is based upon the materials used, the process, and the desired product.
The $299 AirStation Wireless-N Nfiniti Dual-Band Router and Access Point concurrently supports 802.11a/b/g and the IEEE 802.11n draft specification.
Beyond this, the more the information that is available about the process tolerance or any materials interactions, the more detail can be included in the draft specification.
The current draft specification complies with guidelines formulated during the first workshop, and the CDEs and TMA data structure conform with all subsequent recommendations from workshop participants.
Suzanne Daley (NYT) RUSSIA: AMERICAN'S TRIAL DELAYED -- A Moscow court granted a one-day delay in the espionage trial of Edmond Pope, the American businessman accused of trying to buy secret plans for a torpedo, so lawyers could draft specifications for an evaluation of Mr. Pope's bone cancer.
At a meeting in the Pentagon on Oct. 9 and 10, 1967, we reviewed draft specifications for both the Interface Message Processor (I.M.P).
(Although [18, 19] are only draft specifications, they have been implemented by all major browsers [6].) It requires careful client-side coding, however.
