Code Modernization: Focus on ADA
Ada was designed and released from 1977 to 1983 as a high-level object-oriented language for use in real time and embedded systems. It is used extensively in systems such as air traffic management systems, banking and financial systems, communication and navigational satellites, medical equipment, and in military applications. Currently, although the Ada language has been updated, it is not as common as it once was. The ratio of Java programmers to Ada programmers is now about 20 to 1.
United States Air Force SBSS ILS-S COBOL to Java on AWS Modernization
A major component of the system is 54 years old, written in COBOL, and provides retail-level business logic. The component runs on mainframes that have proven to be extremely difficult to change and manage, and the DoD needed to modernize the component to drive down operating costs and move to an open platform, while retaining all functionality....
The U.S. Air Force uses the Integrated Logistics System – Supply (ILS-S), of which the Standard Base Supply System (SBSS) is a major part, as a mainstay of their supply chain. The SBSS program includes over 1.5 million lines of COBOL, as well as smaller numbers of C and Assembly, all of which are to be transformed into Java.
When that stalwart of facile enterprise development, Visual Basic 6, was retired by Microsoft, it left companies with a variety of problems. While many were able to immediately upgrade to Visual Basic .NET, Java, C++ and other platforms, cases remain in which VB6 was so embedded in the software infrastructure that it could not be easily changed or extricated. TSRI has been working on code transformation of numerous languages for many years, and now includes VB6 transformation.
PowerBuilder, with its ever-popular DataWindow IDE feature, and strong client-server orientation, is still an important coding mechanism. It has fallen out of favor in recent years, however, and its codebase has been neglected and moved to Sybase, then to SAP, and now to Appeon. Due to a few missteps along the way, and a late.NET capability addition, many companies are choosing to discontinue their use of PB and move to newer platforms.
TSRI was a subcontractor in support of HRG’s Military Health Systems Transition Application Support (TAPS) Research Project. The objectives of the research were to identify a subset of the radiology module within the Massachusetts General Hospital Utility Multi-Programming System (MUMPS or M) based Composite Health Care System (CHCS), transform it automatically into Java, demonstrate functional equivalence, and gather metrics to support estimates of effort required to transform larger portions of the CHCS code.
Stanley and Assoc. contracted TSRI to modernize the Battle Command Software - Advanced Field Artillery Tactical Data System (AFATDS). This system is an integrated system that provides the Army, Navy, and Marine Corps automated fire support command, control and communications. Prior to this modernization, AFATDS was written in legacy Ada-83. The target code selected for the AFATDS modernization was Java.
The Eurocat Air Traffic Management System (EATMS) is used in 16 European countries and Australia. EATMS became subject to a modernization initiative in 2005. Thales Air Systems selected the The Software Revolution, Inc. (TSRI) to modernize this system written in legacy Ada 83. After transforming this application to both Java and C++ for performance testing, Thales selected Java as the final target language and TSRI completed the modernization.
ITT Corporation awarded a sole-source contract to TSRI for modernization of the COBRA DANE Radar Calibration System (SCRS) of the Ballistic Missile Early System (BMEWS) under the Air Force’s System Engineering & Sustainment Integrator (SENSOR) program.
The Defense User Registration System (DURS) of the Defense Technical Information Center (DTIC) consisted of a UNISYS 2200 COBOL application running within the DPS form-based presentation system (DPS 1100). DURS required conversion into a Java/J2SEE multi-tiered application to support DTIC modernization requirements.