Mobile catering is common at outdoor events (such as concerts), workplaces, and downtown business districts.
As such, certain catering companies have moved toward a full-service business model commonly associated with event planners. They take charge of not only food preparation but also decorations, such as table settings and lighting.
However, things like lighting and fire permits are not scaled with the guest count, so per-person pricing is not always appropriate. It is necessary to keep the cost of the food and supplies below a price margin in order to make a profit on the catering.
The "Careers Scotland" website [1] gives the following definition of a Catering Officer's duties: Merchant Navy catering officers oversee the purchase, preparation and serving of food and drink to crew members and passengers. They are also responsible for accommodation services, including the provision of linen, bedding and laundry. They may be in overall charge of administration, organising record keeping, wage payment, and the interpretation of customs and immigration records that apply while the ship is in port.
Source: Wikipedia > Catering
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