ABC is really a whole-firm project, not an accounting project; when ABC is owned by accountants, this increases the risk of failure and so NAO refers to the degree of commitment of groups or individuals (such as design engineers and operations staff) who are not accountants but who are involved in the ABC model (Chongruksut and Brooks, 2005). Morakul and Wu (2001) showed that Thai society involves a highpower distance so if only the accounting department are responsible for an ABC project, they may be afraid to lose the power which they hold through control of information important to other departments. ABC projects should therefore involve the entire company and require the participation of all parts of the organization. Cooper et al. (1992) stated that the main factor causing ABC delay is accountants being in sole control of an ABC project. Moreover, Maelah and Ibraim (2006) indicated that when non-accountants participate in the early stages of ABC implementation, the project is more successful.NAO includes the commitment of people and groups in the company who are not accountants to using ABC information and this has consequences for senior management support, training and the linkage of ABC to performance measurement. This induces employees to acknowledge and implement better the ABC system.