Migration from AS/400 to Modern Web Application
Expert in modernization of IBM i systems (iSeries, System i) - RPG, RPGLE, COBOL, and DB2 for i specialist
Transform your AS/400 into a Modern Web Application
Is your company still using a System AS/400 (IBM i, iSeries or System i)? Are you facing high maintenance costs, an aging interface, and difficulties in recruiting RPG developers? It's time to modernize your legacy application by migrating it to a modern, responsive and accessible web interface from any device.
As an expert in AS/400 migration and full-stack developer, I assist you in the digital transformation of your critical applications. My expertise encompasses the entire process: from analyzing your existing RPG, RPGLE, COBOL, and CL code, to the deployment of a modern web solution based on open-source technologies such as Python, Django, React, or Vue.js.
Why Migrate your AS/400?
Cost Reduction
IBM licenses, hardware maintenance, and support costs for the AS/400 represent a significant budget. A migration to open-source technologies can reduce your IT costs by 40 to 60%.
Shortage of Skills
RPG and COBOL developers are becoming increasingly rare. Migration towards modern technologies (Python, JavaScript) facilitates the recruitment and training of your teams.
Mobile Accessibility
The 5250 interfaces are not adapted to smartphones and tablets. A modern web application offers an optimal user experience on all devices.
Easy Integration
Easily connect your application to third-party services via modern REST APIs: CRM, ERP, BI tools, cloud solutions, etc.
Scalability
Modern architectures (microservices, cloud) allow for rapid evolution of your application and adaptation to changing business needs.
Modern UX/UI
Offer your users an intuitive and pleasant interface that improves their productivity and reduces input errors.
My Expertise in AS/400 Migration
With several years of experience in AS/400 development and modern web technologies, I master the entire migration chain. My pragmatic approach ensures a smooth transition without disrupting your activity.
Mastered Technologies and Languages
IBM Systems
Legacy Languages
Modern Web Technologies
Migration Methodology
My proven methodology guarantees a successful migration of your AS/400 application to a modern web solution, with a minimum of risks and interruptions.
-
Analysis of the Existing
- Complete audit of your RPG, RPGLE, COBOL, and CL code
- Data flow and business process mapping
- Analysis of the DB2 for i database
- Identification of dependencies and external interfaces
- Performance Evaluation and Data Volume
-
Modern Architecture Design
- Selection of adapted technologies according to your needs (Python/Django, React, PostgreSQL, etc.)
- Design of the application architecture (monolithic, microservices, serverless)
- Database modeling (new)
- Definition of API REST for integration
- User Interface Prototyping (UX/UI)
-
Progressive Development
- Functional Module Migration (Iterative Approach)
- Rewrite of business logic in Python or JavaScript
- Data migration from DB2 to PostgreSQL/MySQL
- Web Responsive Interface Development
- Continuous integration and automated deployment
-
Tests and Validation
- Unit tests and integration tests
- Performance and Load Tests
- Functional validation with end-users
- Security and Compliance Tests (GDPR)
- User Recipe (UAT)
-
Deployment and Production
- Data Migration in Production
- Progressive Deployment (Blue-Green Deployment)
- Monitoring and Supervision
- Post-Migration Support
-
Training and Support
- User Final Training
- Technical Team Training
- Completion of documentation (technical and user)
- Skills Transfer
- Evolutive Support and Maintenance
Advantages of Modernization
For Your Business
- Reduction of IT costs : Savings on licenses, hardware, and maintenance
- Increased Agility : Faster and more cost-effective functional evolutions
- Technological Independence : No single vendor dependency
- Regulatory Compliance : Facilitates GDPR, ISO, etc. compliance
- Appreciation of the application heritage : Modern and lasting applications
For Your Users
- Modern and intuitive interface : Reduction of training time
- Mobile Accessibility : Remote Work and Mobility
- Improved Productivity : Workflows optimize and automate
- Optimal user experience : Modern and ergonomic design
For your IT Teams
- Modern Technologies : Attractiveness for developers
- Maintenance Facility : Clean and documented code
- Modern Development Tools : Git, CI/CD, Docker, etc.
- Active Community : Abundant support and resources
Areas of Activity
I accompany businesses from all sectors in their digital transformation:
Industry
Production Management, GPAO, MES, Traceability
Distribution & Logistics
WMS, TMS, inventory management, EDI
Finance & Insurance
Portfolio Management, Accounting, Insurance
Health
Patient Folders, Billing, Scheduling
Public Administration
Administrative Management, Citizen Services
SMEs & Enterprises
ERP, CRM, commercial management
Request Your Personal Quote
Are you looking to modernize your AS/400 application? Contact me for a free audit and a personalized quote tailored to your needs and budget.
Frequently Asked Questions
How much does an AS/400 migration cost?
The cost depends on the complexity of your application, the number of RPG/COBOL programs, the volume of data, and the features to be migrated. A preliminary audit allows us to establish a detailed and personalized quote. Generally, the return on investment is achieved in 2 to 3 years through savings.
How long does a migration take?
Project duration varies depending on its scale: from 3 months for a small application to 18 months for a complete ERP. The modular approach allows for progressive deployment of features and limiting risks.
Can I keep my DB2 data?
Yes, several options are possible: complete migration to PostgreSQL/MySQL, maintaining DB2 with access via API, or a hybrid approach. The choice depends on your technical constraints and budget.
Do my users need to be trained?
A training is recommended to facilitate the adoption of the new interface. However, a modern and intuitive interface significantly reduces the training time compared to 5250 screens.
What happens to my RPG code?
Your business logic is analyzed and rewritten in a modern language (Python, JavaScript) while preserving proven management rules. The original source code is archived for reference.
Can I perform a gradual migration?
Absolutely! The functional module approach allows for a gradual migration of your application without interrupting your activity. The migrated modules coexist with the AS/400 during the transition.
What is the cost for this type of service?
From 5,000 EUR excl. VAT for a partial migration. Complete redesign of an AS/400 system: 15,000 to 30,000 EUR excl. VAT. Free technical audit for precise pricing.