Intelligent Systems Engineering
Case Studies

Legacy Systems Graveyard

Legacy System Graveyard

Welcome to ManTech's Digital Consulting Legacy System Graveyard, where you can explore the legacy systems that we have successfully retired with our innovative solutions. We understand the challenges and complexities of maintaining outdated systems, which is why we are dedicated to helping our clients modernize and upgrade their technology.

Our team has a wealth of experience in retiring legacy systems and implementing new solutions that are reliable, efficient, and scalable.


Air Force - ABIDES

Built on 1970s technology the Automated Budget Interactive Data Environment System (ABIDES) was laid to rest in 2021.  The Air Force attempted this transformation 3 times previously in the past 20 years!  

Read More


Air Force - RAPIDS

The legacy Resource Allocation Programming Information Decision System (RAPIDS) was originally sentenced to death in FY14.  It was not until SAF/FM & AFLCMC PEO-BES partnered with Definitive Logic using Agile methodology that RAPIDS permanently visited the Legacy Graveyard in Dec 2021.

Read More


Air Force - ETT – Enhanced Trade Space Tool

Analyzing scope, time and cost tool a huge leap forward when the ETT legacy tool was buried in 2021.  Building data-driven projections were enhanced by fielding PBES’ Oracle OBIEE tools, enabling the Air Force to quickly and more accuratly understand the full effects of any acquisition or divestiture decisions.  

Read More


DHS - FYHSP Database

On March 9th 2020 the Department of Homeland Security (DHS) Planning, Programming, Budgeting and Execution (PPBE) OneNumber system went live for DHS Headquarters and Components replacing the antiquated and fragmented Future Years Homeland Security Program (FYHSP) database. 

Read More


Navy - MSC Budget Preparation System

The Navy’s Military Sealift Command sentenced BPS to death in July 2019 and Definitive Logic acted as executioner for an outdated technology that lacked the flexibility and functionality required for efficient management, advanced analytics, and agile budget/POM preparation. 

Read More



Learn More