A plurality of resources, typically service operatives, are allocated to a plurality of tasks by a method in which initial information relating to the tasks to be allocated and the resources available to perform the tasks is provided. One of an engaging projecting portion and an engaging concave portion is provided on the visor, and the other is provided on the movable plate. By changing the parameters of the data, the data may still be acceptably received at the mobile terminal over just one leg of the soft handoff even when the strength of the pilot signal used for the supplemental channel changes significantly. The frequency distribution calculating unit obtains each of frequency distributions of the feature values corresponding to the respective images. The assets can represent a product with a hierarchy of instances of sub-products, and one or more of the sub-products can itself be a complex product. By doing so, a contamination by dopants of the second impurity type of a fabrication line using semiconductor material with dopants of the first impurity type, can be prevented.