Here are entered works on the application of engineering principles and techniques to the design, installation and improvement of integrated systems employing persons, materials, and equipment for a high level of productivity at an optimum cost. Works on the planning and control of the mechanical means of changing the shape, condition, and relationship of materials for greater effectiveness and value are entered under Production engineering.
Here are entered works dealing with the effort to reform English orthography. Works on orthography, spelling, and spelling reform in languages in general are entered under Language and Languages--Orthography and spelling. Works dealing with orthography, spelling, and spelling reform in specific languages or groups of languages are entered under the name of the language with subdivision Orthography and spelling, e.g. French language--Orthography and spelling.