Wis. Stat. § 402.102
Unless the context otherwise requires, this chapter applies to transactions in goods; it does not apply to any transaction which although in the form of an unconditional contract to sell or present sale is intended to operate only as a security transaction nor does this chapter impair or repeal any statute regulating sales to consumers, farmers or other specified classes of buyers.
Wis. Stat. § 402.102
A consignment that involves a delivery of goods to a merchant who has been induced to accept them by an agreement from the consignor that permits their return in lieu of payment if they are not resold is a security consignment governed by ch. 409, as contrasted to a true consignment. Clark Oil & Refining Co. v. Liddicoat, 65 Wis. 2d 612, 223 N.W.2d 530 (1974). A mixed contract for goods and services is subject to this chapter if the predominant factor is a transaction of sale, with labor incidentally involved. Van Sistine v. Tollard, 95 Wis. 2d 678, 291 N.W.2d 636 (Ct. App. 1980). A contract for development of computer software is primarily a service contract and is not subject to the uniform commercial code. Micro-Managers, Inc. v. Gregory, 147 Wis. 2d 500, 434 N.W.2d 97 (Ct. App. 1988). This chapter does not just apply to a sale as that term is defined in s. 402.106(6), but to the more general aspect of commerce: "transactions in goods." The reach of UCC Article 2, adopted as ch. 402, goes considerably beyond the confines of that type transaction that the UCC itself defines to be a sale; namely, the passing of title from a party called the seller to one denominated a buyer for a price. Estate of Kriefall v. Sizzler USA Franchise, Inc., 2011 WI App 101, 335 Wis. 2d 151, 801 N.W.2d 781, 09-1212.