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Showing papers on "Layer (object-oriented design) published in 1986"


Journal ArticleDOI
TL;DR: The software architecture for a modern business communication system is presented and a hierarchy of virtual machines is adopted to meet the main requirements in the area of flexibility with respect to configuration and topology.

5 citations


Book ChapterDOI
01 Jan 1986
TL;DR: The core of the RDBM software is the control software running on the control processor (DABS), which has been implemented as a system of cooperating parallel processes which use a common pool of subroutines.
Abstract: The core of the RDBM software is the control software running on the control processor (DABS). It has been implemented as a system of cooperating parallel processes which use a common pool of subroutines. The control software is organized in 3 layers: communication layer, translation layer, and execution layer .

4 citations


Book ChapterDOI
01 Jun 1986
TL;DR: This paper deals with a class of strip-based pattern generators (PG), for which each graphic layer needs to be partitioned into tiles of machine-dependent dimensions, and Format-independent partitioning methodology is shown.
Abstract: IC design database consists of several graphic layers. Manufacturing is based on exposing a glass plate or a silicon wafer to patterns of light, derived from the graphic database. This paper deals with a class of strip-based pattern generators (PG), for which each graphic layer needs fo be partitioned into tiles of machine-dependent dimensions. Format-independent partitioning methodology is shown. It consists of graphic boolean operations between machine-dependent “checkerboard” layer and the design graphic layer. Since these operators are assumed to be off-the-shelf general purpose modules, the new method saves the development of different partitioning modules for different pattern generators.