1. Overview (Project Background)

A Company aimed to accelerate digital transformation and transition to data-driven management to proactively respond to the rapidly growing market following the COVID-19 pandemic. To transform data capabilities into future growth drivers and become a digital leading company in the food ingredient distribution industry through new business opportunities, the company pursued All In Migration and DX as core initiatives.

2. Challenge (Problem Definition)

A Company faced the following major challenges during the cloud migration process and in the existing environment.

• Source Code Management Issues: It was difficult to secure the original source code due to source code management issues with the migration target source code.

• DB Capacity Increase and Performance Degradation: DB capacity increased excessively due to data storing over 10 years of transaction volumes, and performance degradation was a concern during migration due to differences in functions and architecture between Oracle and pgSQL.

3. Solution (Resolution Approach)

Megazone Cloud performed cloud migration with commercial Oracle Exadata cloud migration and Application/DB Modernization as core strategies.

• Source Code Acquisition and Structure Improvement: We acquired Source through Decompile work on JAVA and DLL and then modified it. We changed the Source to a form suitable for cloud architecture through Business Logic changes.

• DB Modernization and Optimization: We migrated commercial Oracle Exadata (OLTP) to RDS Oracle 19c and Aurora pgSQL. We reduced DB capacity through data separation and storage construction.

• Application Modernization and Environment Construction: We migrated Weblogic to Tomcat/Wildfly and Oracle JDK to Open JDK. We built Modernization applying AWS Fargate and Dockerizing, and constructed a DevOps environment using AWS Code Series and Jenkins.

4. Result (Achievements)

Through successful cloud migration and modernization, we achieved the following business results.

Business Growth Support and Performance Improvement

• We established the foundation to support 20% monthly revenue growth following the COVID-19 pandemic.

• After migration, order volume increased by 22% and transactions increased by 55%.

• Through capacity reduction and structural improvement, we achieved performance improvement and cloud cost reduction.

Operational Environment Improvement and Modernization

• Through a cloud-native environment, we established the foundation for four major digital transformation strategies including data literacy, digital collaboration, omnichannel experience, big data platform, and value chain data utilization.

• We migrated the Unix (IBM AIX) environment to Amazon Linux and Serverless environments.

• Source acquisition enabled Business Logic changes and structural improvements.