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The provision of context and meaning to data, which is desirable if not essential if well-informed decisions are to be made. For example, the pH of a soil is stated as being 5.2, which is a useful piece of data, however, without the context being known it has limited meaning. If a grass sward consisting of perennial ryegrass was to be grown on this soil then clearly it will struggle, yet by contrast a red fescue / browntop bent sward would be ideally suited to it.