A union organizer (or union organiser in Commonwealth spelling) is a specific type of trade union member (often elected) or an appointed union official. In some unions, the organizer's role is to recruit groups of workers under the organizing model. In other unions, the organizer's role is largely that of servicing members and enforcing work rules, similar to the role of a shop steward. In some unions, organizers may also take on industrial/legal roles such as making representations before Fair Work Australia, tribunals, or courts. In North America, a union organizer is a union representative who "organizes" or unionizes non-union companies or worksites. Organizers primarily exist to assist non-union workers in forming chapters of locals, usually by leading them in their efforts. Organizers employ various methods to secure recognition by the employer as being a legitimate union, the ultimate goal being a collective bargaining agreement. The methods can be classified as being either top-down organizing or bottom-up organizing. Top-down organizing focuses on persuading management through salesmanship or pressure tactics. The salesmanship may include offering access to resources such as to a well-trained and skilled supply of labor or access to union cartels. Pressure tactics may include picketing with the intention of embarrassing management or disrupting business, as well as assisting the government in investigating employment law and labor law violations. A strict enforcement of these laws might result in fines and might serve to hurt the violator's chances in a competitive bidding process. Top-down organizing is generally considered easier than bottom-up and is practiced more in the construction industry. Bottom-up organizing focuses on the workers and usually involves a certification process, normally overseen by a labor relations board such as the NLRB in the U.S. The process entails either a secret ballot election or, in some cases, a card-signing effort (called card check).