Report:Inspec/Special Indexing/Classification
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Classification
At least one of more than 5500 Inspec Classifications are given to each file. The classifications are broken down into five top level subfiles, Physics (Subfile A), Electrical Engineering & Electronics (Subfile B), Computers & Control (Subfile C), Information Technology (Subfile D), and Mechanical and Production Engineering (Subfile E). Classifications are further broken down by three numerical headings and an optional fourth qualifying level. The resulting classification is somewhere around the level of detail of a top level subclass for the USPTO classification or IPC classification. Examples of Inspec classifications include “E2330 Mechanical drives and transmissions” and “B2570 Semiconductor integrated circuits”.
Additionally, Inspec provides a Treatment field for each file which indicates the author’s approach to the subject. The codes of this section of the record include: Applications, Bibliographic/Literature Survey, Economic/Commercial/Market Survey, General or Review, New Development, Practical, Product Review, Theoretical/Mathematical, and Experimental.
The below classification schedule is updated annually.
Section A Physics |
A00 General A10 The physics of elementary particles and fields A20 Nuclear physics A30 Atomic and molecular physics A40 Fundamental areas of phenomenology A50 Fluids, plasmas and electric discharges A60 Condensed matter: structure, thermal and mechanical properties A70 Condensed matter: electronic structure, electrical, magnetic, and optical properties A80 Cross-disciplinary physics and related areas of science and technology A90 Geophysics, astronomy and astrophysics |
Section B Electrical Engineering and Electronics |
B00 General topics, engineering mathematics and materials science B10 Circuit theory and circuits B20 Components, electron devices and materials B30 Magnetic and superconducting materials and devices B40 Optical materials and applications, electro-optics and optoelectronics B50 Electromagnetic fields B60 Communications B70 Instrumentation and special applications B80 Power systems and applications |
Section C Computers and Control |
C00 General and management topics C10 Systems and control theory C30 Control technology C40 Numerical analysis and theoretical computer topics C50 Computer hardware C60 Computer software C70 Computer applications |
Section D Information Technology for Business |
D10 General and management aspects D20 Applications D30 General systems and equipment D40 Office automation - communications D50 Office automation - computing |
Section E Mechanical and Production Engineering |
E0 General topics in manufacturing and production engineering E1 Manufacturing and production E2 Engineering mechanics E3 Industrial sectors |
Editor's Note:The level of classification present in Inspec can be useful to search in combination with other limiting factors, but is too broad to be searched exhaustively by class. The Treatment field also is of tangential usefulness, but at a glance may help weed out files that are not of interest more than indicate whether a file is actually of interest. For example, a searcher may not be interested in a survey about particle accelerators and is only interested in practical applications. Classifications are not retroactively updated in the way that some patent information systems update classifications on patents based on the latest USPTO and IPC class listings.
