An alternative version of hot desking would be in a workplace where employees have multiple tasks and multiple employees may require a certain work station, but not for their entire duties. Thus a permanent work station can be made available to any worker as and when needed, with employees sharing the station as needed. This could be for a single element of one’s work, for example, when a sales employee needs an office for a client meeting but does not otherwise have need of a personal office. Another example would be when employees need to perform specific tasks at work stations created for those tasks in an assembly line fashion. There, the individual work stations are not set up as personal offices. A collection of such workstations is sometimes called a mobility centre.