Legacy Optimisation

Digital channels are placing an exponential increase in demand on legacy systems, are you ready to fully tackle performance and cost challenges?

The increasing use of Digital channels is placing an exponential increase in demand on legacy systems, which are becoming more unreliable and costly to maintain.

A number of strategic options to address challenges with legacy systems have been pursued – replace them, break them up, optimise them or a combination of these.  Full replacement has proven to be largely unsuccessful to date. As it stands the challenges associated with the legacy estate are not going to be easily resolved.

Digital Transformation or Digital Distraction

The focus on Digital Transformation has drawn attention and key resources away from the legacy estate creating a series of challenges and key questions. These are some of the challenges we have seen, are these familiar to you?

  • An upward trend in legacy and overall run the bank costs  
  • The tension between legacy and digital systemsimpacting speed to market.  
  • Slow response to regulators due to a lack of understanding of your systems 
  • Increased exposure to reputational damage 
  • Diminishing experience and knowledge of legacy systems 

If these are the questions you are asking it may be time to reconsider your approach to Legacy Optimisation and Resilience. Where do you begin?


Our experienced team has worked with a number of organisations to deliver substantial benefits.

Infrastructure Cost avoidance at a large UK Mutual – £10m

There was an exponential increase in demand on legacy systems and costs had significantly increased.

Our experienced legacy experts mapped customer journeys and analysed Unisys Mainframe, connecting Middleware Logs and code to determine where duplication and unnecessary execution was being carried out.

Infrastructure Cost avoidance at large UK retail bank - £10m

Bank was looking to upgrade its infrastructure to ensure that key Service Level Agreements would not be missed as transaction volumes increased.

Analysis of schedules, executed batch and transactional logs helped our experienced consultants define and delivered a number of projects to ‘tune’ systems overnight processing.

Reduction in Overnight Processing at Large UK Mutual - 47%

Evening/overnight batch cycle was unable to complete on peak days and high incident numbers impacted timelines. Analysis of schedules and logs helped our experienced consultants shape and delivered multiple opportunities to reduce batch timings and increase headroom to Service Level Agreements.

Reduction in Development Effort at large UK retail bank - 50%

Major and critical lengthy system test cycles (one month per cycle) failing, each cycle involved 300 plus applications, millions of replayed transactions and 120 thousand executable jobs. Analysed each application in scope for criticality, matched transaction, batch and file/data transfer requirements and cut executable schedules to relevant jobs.

Our experienced team has worked with a number of organisations to deliver substantial benefits.

Tailored to you

Our domain and technology experts will analyse your legacy systems and with just a few hours support from your subject matter experts quickly identify ways in which to address your legacy challenges. Our approach is based on many years of experience and will be tailored to your unique needs and challenges.

Tactical Analysis and Recommendations

We gather inputs including codebases and structure for all in-scope systems and the details of what’s executed in operations and then translate this data-driven analysis into a legacy optimisation business case with an articulation of anticipated benefits.

Project Delivery

Small teams of consultants who know each other and have worked together to drive the delivery of suggested legacy optimisation portfolio, ensuring benefits are realised.

Ongoing Proactive Monitoring

Following the successful delivery of the initial portfolio of legacy optimisation projects, we provide ongoing proactive monitoring and delivery of further improvements to your legacy systems and operating model. We can also support you in delivering against longer-term transformational objectives.

At Enterprise Blueprints our team has deep experience of legacy challenges who are passionate about problem-solving in this complex environment.

We can provide legacy industry experts with a proven track record of tackling legacy system performance, resilience and capacity issues. These are experienced people with access to our supporting processes and tools will help ensure you achieve the best possible business outcomes through the optimal use of your systems old and new.

Our team is supported by powerful tools allowing us to quickly produce data-driven graphical and informative outputs.

Operational insights are quickly established as fact using the batch, file and transaction information you already generate. We use this information and apply our industry knowledge and legacy system experience to produce graphical and informative outputs.  We also use Hatha Systems Knowledge Refinery® (KR) Solution. Developed by our partner  Hatha Systems®, Hatha Systems Knowledge Refinery® (Hatha KR) is a platform and set of tools designed to assist with application analysis efforts.

Enterprise Blueprints at your side

At Enterprise Blueprints we know you need to see value within weeks not months. We will assign an experienced team to work with you every step of the journey, from start to successful conclusion of any engagement. Our architects have extensive experience in the financial services industry and beyond, and have the expertise to deliver to challenging timelines. We are biased towards action rather than extended discussion and our approach has consistently helped our clients deliver complex projects successfully. To discuss your needs then please reach out to us today.

Let's do great work together