Mapping entities in data models
US9251225B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Feb 2, 2016 |
| Priority date | — |
| Expiry date | Oct 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/25
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mapping information that specifies attributes of destination entities in terms of attributes of source entities is received. At least some source entities correspond to respective sets of records in one or more data storage systems. The mapping information is processed to generate a procedural specification for computing values corresponding to attributes of destination entities. Collections of nodes are generated, each including a first node representing a first relational expression associated with a specified attribute. At least some collections form a directed acyclic graph that includes links to one or more other nodes representing respective relational expressions associated with at least one attribute of at least one source entity referenced by a relational expression of a node in the graph. At least two of the collections are merged with each other to form a third collection based on comparing relational expressions of nodes being merged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.