Corporate governance is defined, described or delineated in diverse ways, depending on the writer's purpose. Writers focused on a disciplinary interest or context (such as accounting, finance, law, or management) often adopt narrow definitions that appear purpose-specific. Writers concerned with regulatory policy in relation to corporate governance practices often use broader structural descriptions. A broad (meta) definition that encompasses many adopted definitions is "Corporate governance” describes the processes, structures, and mechanisms that influence the control and direction of corporations."