thorsten schmidt

VSAM to DL/1

Project
implementing a UNIX based standard solution on MVS
Client
R+V Versicherung, Wiesbaden
Contact
Mr. Lutz Otte
Application of TSU tool
The investment project programs used simple VSAM access modules, which had a unique interface.

The same interface has been used to perform identical functions calling DL/1.

Database definitions are generated automatically. So are PSBs: a program scanner recognizes all database accesses in an application program and forms an appropriate PSB.

PSB chains are stored in a central NORENT subroutine from where addresses can be restored by access modules later.

ISAM to DB2

Project
Migrating from IBM 9370 to MVS
Client
Department of Defence, Switzerland
Contact
Mr. Pirih, Mummert+Partner
Application of TSU tool
All VSAM accesses for Batch and DPPX/DTMS were realized via COBOL OPEN,READ,WRITE etc.

Conversion tools transforms these parts into subroutine calls using a well defined standard access interface. Each VSAM File is represented by a DB2 Table.

DB2 to VSAM

Project
implementing a DOS/VSE based standard solution on BS2000
Client
Swiss National Insurance, Frankfurt/M.

Contact
Mr. Baumstark , has program service
Application of TSU tool
700 COBOL/SQL based application programs were converted to BS2000/ISAM where there is nothing like DB2.

Thanks to CIS/SNI, which is capable of laying structures over a primitive ISAM making table access possible. All application programs run with excellent performance.

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