Caisse Nationale de Sécurité Sociale
Improved Flexibility and Performance with Lower Costs
Growing User Base and Service Offerings Drives Need for Change.
Caisse Nationale de Sécurité Sociale (CNSS), otherwise known as the Tunisian National Social Security System, provides family benefits, social security, pension funds, loans and additional aid to insured parties. As of year end 2005, over 1.7 million active social security contributors were managed by CNSS. In addition, CNSS manages services provided under bilateral social security agreements signed with twelve other countries.
Looking to lower annual operational costs and gain the flexibility of an efficient, open system s platform, CNSS decided to investigate alternatives to move its key mainframe application s to a UNIX® environment.
After reviewing several alternatives, including rewriting applications, CNSS decided rehosting was the best choice to replace its legacy environment. Selecting UniKix rehosting technology from Clerity Solutions Inc. (Clerity), migration and project management services from Tunisie Micro Informatique (TMI) and servers from Sun Microsystems, CNSS prepared to
migrate its existing applications.
Tunisie Micro Informatique, the local Tunisian Sun Distributor, performs a complete migration. Prior to the rehost implementation, CNSS’ applications ran on three mainframe servers in CICS OLTP and JCL batch environments. The applications were primarily COBOL-based and utilize d IBM mainframe utilities such as SORT/MERGE, DITTO and ICKDSF. ESDS, KSDS, and RRDS VSAM data files were accessed by these applications, along with DB2. End users
interacted with the applications through 3270 screens as defined by Basic Mapping Support (BMS) MAPS.
Leveraging UniKix(TM) Transaction Processing Environment (UniKix TPE) software and UniKix(TM) Batch Processing Environment (UniKix BPE) software, TMI was able to move the complete CNSS application environment to Solaris environment in just 6 months.
The rehost involved 400 CICS online programs, 3000 jobs and 2650 batch programs. TMI also moved CNSS’ data into a relational Oracle database and preserved end user interfaces with the native implementation of BMS mappings found in UniKix rehosting software.
In addition to moving applications and data, CNSS leveraged TMI’s migration experience to assist with the acquisition of appropriately-sized Sun Microsystms server and storage systems, conversion of historical data from mainframe tapes and installation and production cut over to the new software and hardware environment.