Importance

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Abstract

One example embodiment of property data storage includes using row and column names to identify properties to a particular circuit design component. Each of a plurality of columns in a relational database table is named with a property name indicative of a respective one of a plurality of circuit design properties. Another column in the relational database table is named with a property name indicating the column is unassigned to a circuit design property. Rows in the relational database table are named with respective names of the plurality of design components. When a circuit design component has a property indicated by one of the property names of the columns, a data value indicative of the circuit design component having the property is stored in the table entry at the column having the one of the property names and at the row having the name of the circuit design component. When a circuit design component does not have a property indicated by one of the property names of the columns, a data value indicative of the circuit design component having a non-assigned property is stored in the table entry at the column having the property name indicating the column is unassigned to a circuit design property and at the row having the name of the circuit design component.

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First Claim