Abstract: Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for optimizing a process of manufacturing a product. In one aspect, the method comprises repeatedly performing the following: i) selecting a configuration of input settings for manufacturing a product, based on a causal model that measures causal relationships between input settings and a measure of a quality of the product; ii) determining the measure of the quality of the product manufactured using the configuration of input settings; and iii) adjusting, based on the measure of the quality of the product manufactured using the configuration of input settings, the causal model.

Abstract: A compartmented tray has an array of receptacle interconnected by a common top wall. The top wall has a peripheral flange which reinforces the tray, and the receptacles are all interconnected by troughs which further increase the tray's flexural stiffness.

Abstract: A method for managing a plurality of different fonts that are installed on a computer. Raw font data for the plurality of fonts are stored in files on a computer hard disk (34). At least some of the fonts for which a character set is defined by the raw data are installed in the graphics user interface operating system running on a computer. The installed fonts are listed in a file (40). The method enables a user (22) to create one or more font menu lists (28) that are displayed to the user whenever selection of a font for use in a document by an application is desired. The font menu lists are subsets of the complete list of installed fonts on the operating system. Applications (42) can access any of the fonts installed on the system, but whenever a font must be selected by the user for use in a document, a more limited list of fonts appropriate for the application then running on the computer is displayed, reducing confusion as to the appropriate fonts that should be considered.