Basically a worldwide functional structure is the one in which there is a central functional departments. In other words, one functional department like marketing is responsible for controlling the activities of all of the branches of the company worldwide. Multinational companies which have similar product lines usually go for this structure. Organizations which have a worldwide functional structure are recognized for having you-form structure. "you" stands for unity. Such structure increases the control of the parent company on its branches worldwide.
British Airways follow a Worldwide functional structure and its functional departments like marketing, finance, HR have the control worldwide.
British Airways follow a Worldwide functional structure and its functional departments like marketing, finance, HR have the control worldwide.