On the other hand, an independent contractor is not subject to such a discipline. Employment contracts in Singapore are also governed by the general principles of contract law. Employment contracts may be terminated by agreement, performance or expiration, frustration and negative or fundamental violation. The obligation to work exclusively for the employer should also take into account the obligation for the person to work exclusively for the employer. An employment relationship is usually exclusive and an employee is expected to devote their time and attention to the working time of their work. As a general rule, an independent contractor would have more freedom to choose the work he wishes to perform and can provide services to others.