The International Nanny Association defines a nanny or housekeeper as one of person "employed by the family on moreover a live-in or live-out basis undertaking all tasks associated to the care of children. Duties are usually limited to childcare and the household tasks associated to childcare.
A housekeeper or a nanny is a domestic service expert who has common responsibility for the upholding and cleaning of a private household. A housekeeper’s or a nanny’s initial job responsibility is to maintain the employer’s house in a clean and personable manner at all times.
You might not be confirmed in hiring a summer nanny during summer leave, as during school hours the schedule manages your kids but this is not the case during summer holidays. With the working school environment you might never have to go off schedule as everything runs systematically smoothly; from morning till the evening.