Title :
Industrial Report: Data Reengineering of COBOL Sequential Legacy Systems
Author :
Millham, Richard ; Yang, Hongji
Author_Institution :
Univ. of Bahamas, Nassau, Bahamas
Abstract :
This abstract presents an approach, supported by an industrial case study, to data reengineer a sequential file system to a relational database with multiple, linked, normalized tables with properly delimited fields of the correct data type. In addition, the data access logic of the underlying COBOL program is modified to access the newly reengineered relational database rather than the sequential files. Our approach assumes the presence of a master-file update function within the COBOL program; multiple file records with several fields of alphanumeric type; and corresponding temporary records with matching but incongruent fields of different data types.
Keywords :
COBOL; relational databases; software maintenance; systems re-engineering; COBOL program; COBOL sequential legacy system; data access logic; data reengineering; data type; master-file update function; multiple file records; relational database; sequential file system; Application software; Computer applications; Computer industry; Data analysis; File systems; Logic; Performance analysis; Relational databases; Spatial databases; Transaction databases; cobol; data reengineering; legacy systems; relational databases conversion;
Conference_Titel :
Computer Software and Applications Conference, 2009. COMPSAC '09. 33rd Annual IEEE International
Conference_Location :
Seattle, WA
Print_ISBN :
978-0-7695-3726-9
DOI :
10.1109/COMPSAC.2009.98
