Core System Cloud Migration

Connecting Core Systems to the Cloud

HighlightSeveral organizations plan to migrate their legacy systems to the Cloud, in order to minimize investment on their own infrastructure and to gain access to new solutions and services that rapidly adapt to fast-paced requirement changes. However, it remains a challenge for organizations to move core business systems to the cloud do to the risk of business disruption and financial impact.

In this case, Deloitte managed to migrate a core insurance system (TIA), relying in an Exadata datacentre, to the Cloud, integrating other satellite applications in this new cloud-based architecture.

Business & IssuesOur client is a P&C insurance company, owned by one of the largest insurance and asset management companies in the Netherlands. It has over 400 employees, more than 800.00 customers and operates in the market for over 90 years. The company had an imperative deadline to decommission their current Exadata datacenter up to June 2020, which required them to migrate their TIA insurance core solution to a new infrastructure within a timeframe of 6 months.

The client decided to use AWS as the new infrastructure provider and selected Deloitte to help assess the best approach to migrate the core solution to a cloud environment taking advantage of its scalability, reliability and cost.

ResultsTaking advantage of Deloitte’s TIA EMEA CoE and cloud expertise, the following value was delivered to the client:

“The project was based on infrastructure-as-code principles, to boost developer productivity and reduce inconsistencies while provisioning and managing IT infrastructure.”

“New DevOps pipeline that uses the industry standard tools and best practices to allow the client to achieve a faster release lifecycle.”

Case study results

TIA insurance core solution was successfully migrated into the cloud infrastructure within the defined timeframe – Go Live in June 2020;The new architecture takes advantage of cloud native functionalities to provide automatic failover functionality and allow for rapid recovery in case of disaster;A new DevOps pipeline that uses the industry standard tools and best practices to allow the client to achieve a an improved release lifecycle and benefit from reduced time to market;Increased flexibility in infrastructure maintenance and evolution.

ApproachDeloitte's approach to the project was based on infrastructure-as-code principles, to boost developer productivity and reduce inconsistencies while provisioning and managing IT infrastructure. It allowed for migration preparation, with no impact on the operation – we managed to do the cutover of the whole infrastructure on-prem to AWS in just a few hours, with no disruption on the operations.

The project was developed around these 7 key activities:

Analyzed the client's technical architecture in the Exadata datacenter and identified key integration points;Defined and planned the migration process and approach;Implemented a proof-of-concept that tested the process to migrate TIA to a sandbox cloud environment;Defined the target operating model aligned with the best practices, processes and tools used by the group;

Defined and implemented the target landing zone in AWS using infrastructure-as-code;Implemented a complete new DevOps process to support the maintenance of TIA in the new cloud environment;Migrated the TIA core solution to AWS.

Reduced system downtime and outages with increased availability of 99.99%;

Improved scalability by providing on-demand flexibility in storage (S3) and compute (Lambda)

Minimization of deployment risk

Faster and more agile deployment of new features and products (< 2 min down time)

Improved infrastructure management & security

Reduction of operational overhead by automation of deployment and maintenance processes

Easier to integrate with adjacent systems and AWS services

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Contacts

João Luís Fonseca Partner+351 210 422 541joafonseca@deloitte.pt

Ana Cristina Gamito Partner+351 210422543cgamito@deloitte.pt