Texas Government Code - GOV'T § 2155.062. Purchase Methods

(1) contract purchase procedure;

(2) multiple award contract procedure, including under any schedules developed under Subchapter I;

(3) open market purchase procedure;  or

(4) reverse auction procedure.

(1) a real-time bidding process usually lasting less than one hour and taking place at a previously scheduled time and Internet location, in which multiple suppliers, anonymous to each other, submit bids to provide the designated goods or services;  or

(2) a bidding process usually lasting less than two weeks and taking place during a previously scheduled period and at a previously scheduled Internet location, in which multiple suppliers, anonymous to each other, submit bids to provide the designated goods or services.