In electronic design automation, front-end stages of the design cycle are logical and electrical design (e.g., schematic capture, logic synthesis). Sometimes floorplanning is also considered front-end. back-end are place and route, custom layout design and physical verification (design rule checking, layout versus schematic, parasitics extraction). W1 K% B2 X+ H" j$ }/ H- ^: V
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Data from wiki: http://en.wikipedia.org/wiki/Front-end