A job involves 'a collection of functions, duties and responsibilities entrusted, as part of the scheme of the employer's organisation, to a particular employee'.
Where there has been a reorganisation or redistribution of duties, the question is whether the employee has 'any duties left to discharge'. If there is no longer any function or duty to be performed by that person, his or her position becomes redundant.
An employee may still be genuinely made redundant when there are aspects of the employee's duties still being performed by other employees.
The test is whether the previous job has survived the restructure or downsizing, rather than a question as to whether the duties have survived in some form.
The reference to 'a job no longer being performed by anyone' refers to anyone employed by the business. Therefore, the position can be performed by independent contractors supplying services.
It should be noted that it is the employee's 'job' that is no longer required to be performed, rather than the employee's 'duties'.