Hertz Corporation Puts Legacy Behind With Estuate

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         :  Hertz Corporation

Industry       :  Internet

Practice Area  :  ILGS  


The Hertz Corporation, a subsidiary of Hertz Global Holdings Inc is an American car rental company with international locations in 150 countries worldwide. Hertz is the largest U.S. car rental company by sales. Hertz Global operates the Hertz, Dollar and Thrifty car rental brands in approximately 10,000 corporate and franchisee locations throughout North America, Europe, Latin America, Africa, the Middle East, Asia, Australia, and New Zealand.

Hertz Global is one of the largest worldwide airport general use car rental companies, and the Hertz brand is one of the most recognized in the world. Product and service initiatives such as Hertz Gold Plus Rewards, NeverLost®, Confirmations, Mobile Wi-Fi and unique vehicles offered through the Adrenaline, Dream, Green and Prestige Collections set Hertz Global apart from the competition. Additionally, Hertz Global owns the vehicle leasing and fleet management leader Donlen Corporation, operates the Hertz 24/7 hourly car rental business in international markets and sells vehicles through its Rent2Buy program.

Business Challenge:

The Hertz Corporation had acquired Thrifty Car Rental as a part of its growth strategy, and inherited numerous legacy applications. These legacy applications included PeopleSoft HRMS, PeopleSoft CRM, JD Edwards and a dozen or so custom applications. Most of these systems were no longer utilized in core business activities, but critical data within these systems had to be maintained. Redundant legacy systems were using up valuable resources and were making data access difficult for reporting and compliance purposes.

Thus the challenge was to create a application retirement and data retention strategy that removed the need for the existing legacy and redundant systems while:

  • Preserving legacy data for regulatory compliance or corporate governance requirements.
  • Ensuring that they could access this data after the legacy application was decommissioned.

The Estuate Solution:

​Estuate designed and implemented a solution that enabled the effective decommissioning of Hertz’s legacy systems without any disruption. Estuate identified the data migration rules, developed extract-transform-load flows for each and every application and ensured alignment to the new platform through a comprehensive continuous integration plan. The solution:

  • Retired 21 legacy applications and archived the data from decommissioned applications into an immutable Optim archive file.
  • Enabled rapid responses to requests for archived data through 45 Cognos report templates defined by the project team.
  • Relocated unused application data to secure and lower-cost storage media.
  • Ensured that compliance requirements were met by preserving data in a read-only format while supporting data visualization through standard reporting tools.

Business Impact:

The Hertz Corporation achieved tangible benefits by decommissioning the 21 technologically obsolete systems while allowing access to the data. The solution:

  • Delivered 100% improvement in IBM Cognos reporting performance by archiving inactive system data.
  • Reduced software licensing, maintenance and hardware costs by archiving historical data from legacy systems.
  • Improved optimal application performance by controlling ongoing database and data warehouse growth.
  • Supported data retention regulations and the archival, management, retention and disposal of application data according to corporate data management policies.

        We had inherited over 20+ legacy systems from acquisitions. Keeping those outdated systems running was draining the IT budget for software and hardware maintenance. However, the historical data that the applications contained and the information they provided was critical to us. Estuate’s decommissioning strategy eliminated the redundant systems while preserving legacy data for regulatory compliance or corporate governance factors. With Estuate, we improved stability and reduced application downtime by 90%.

Crystal Tillman
Project Manager