Enterprise applications often need to support large volumes of business data, reliable transactions and long-running business processes. For organizations that depend on stable and structured computing environments, IBM i continues to be an important platform. Its development ecosystem supports applications used across areas such as finance, manufacturing, healthcare, logistics and other enterprise operations. Professionals who understand IBM i development can work with established business applications while also supporting modernization, integration and ongoing application improvements. This makes development knowledge around RPG, RPGLE, CL, DB2 and SQL valuable for technology teams working with IBM environments.
IBM AS400 Developer Training by Multisoft Systems is designed to help professionals build practical knowledge of application development on the IBM i platform. The program covers OS/400 system concepts, DB2/400, CL programming, RPG programming and the Integrated Language Environment (ILE), along with application development, debugging and system maintenance.
What Is IBM AS400 Developer Training?
IBM AS400 Developer Training is a structured learning program focused on developing, maintaining and supporting applications that run on IBM AS/400, also known as IBM iSeries in the course material. The training helps learners understand how the platform is organized and how development components work together. Instead of focusing only on programming syntax, the curriculum introduces the wider environment, including libraries, files, databases, control programming, application development tools and ILE concepts. The Multisoft Systems program is delivered through instructor-led online training and includes project-based learning, experienced trainers, customized learning schedules, doubt-clearing sessions and a course completion certificate.
Why IBM i Development Skills Still Matter
Enterprise software often has a long operational life. Organizations may continue using established applications because they support important business processes and contain valuable business logic. This creates an ongoing requirement for professionals who can understand existing applications, maintain code, work with databases and troubleshoot production issues.
An IBM AS400 developer may be responsible for:
- Designing enterprise applications
- Writing and modifying programs
- Working with RPG and RPGLE
- Developing CL programs
- Managing database-related operations
- Using SQL for data access
- Debugging application issues
- Maintaining existing applications
- Supporting business processes
- Working with application integration
The Multisoft Systems course specifically describes IBM AS400 developers as professionals who design, write and maintain applications running on IBM i systems.
Understanding the IBM AS400 Environment
A strong development foundation begins with understanding the platform itself. The training introduces OS/400 system concepts and architecture, along with libraries, files, members and the library list concept. It also covers the Application Development Tool Set (ADTS). These concepts are important because IBM i development involves more than writing program code. Developers need to understand where source code is stored, how objects are organized and how applications interact with the operating environment. A clear understanding of the system structure can make development, maintenance and troubleshooting easier.
Learning DB2/400 and Database Development
Data is at the center of most enterprise applications. Developers therefore need a strong understanding of how information is stored, accessed and maintained. The IBM AS400 Developer Course includes DB2/400 concepts and the DDS interface. Learners explore externally described files, source files, physical files, logical files, join logical files and field reference files.
The curriculum also covers:
- Database integrity
- Commitment control
- Journaling
- Table creation
- SQL-based insert, update and delete operations
- Cursors in RPG/400
- Triggers
- Report design using the RLU tool
These topics help participants understand how applications interact with enterprise data.
Why DB2 Knowledge Is Important
A developer may need to retrieve customer information, update transaction records, generate reports or validate data as part of an application. Understanding database structures and SQL can therefore help developers create more reliable programs and investigate data-related issues more effectively.
Developing Applications with CL Programming
Control Language programming is another important part of the curriculum. CL/400 helps developers work with system-level operations and application control tasks. The training covers file handling, error and message handling, data areas and data queues. It also introduces file attribute overrides, Open Query File and string functions.
Learning these concepts can help developers understand how programs interact with the IBM i environment. For example, a developer may need to manage a file, handle an error condition or pass information between processes. Knowledge of CL can provide the foundation for handling these types of requirements.
Building Strong RPG Programming Skills
RPG is one of the central programming areas in the IBM i development ecosystem, and it receives substantial coverage in the training.
The curriculum introduces RPG/400 and progresses through several development concepts, including:
- Specifications
- Operation codes
- Subroutines
- Data structures
- Tables and arrays
- Indicators
- Built-in functions
- RPG logic cycle
- Subfiles
- Exception handling
- Database file processing
- Report printing
- Printer files
- Embedded SQL
- RPG free-format programming
This combination gives learners an opportunity to understand both traditional RPG concepts and more modern programming approaches included in the course.
Moving Toward RPG Free-Format Programming
Modernization is an important consideration for organizations maintaining established IBM i applications. Developers may encounter older code while also working with newer programming approaches. RPG free-format programming can provide a more flexible and readable development style. Learning it alongside traditional RPG concepts helps professionals understand different generations of application code. This can be useful when maintaining existing systems while gradually improving application development practices.
Understanding the Integrated Language Environment
ILE is another major part of the program. The training introduces ILE concepts, its advantages and the ILE program model. Participants learn about modules, binding directories, procedures, programs and service programs. The curriculum also includes binder language and binding by reference or copy. Understanding ILE can help developers create applications using a more modular structure. Instead of treating an application as one large program, developers can organize functionality into reusable components. This can support maintainability and structured application development.
Connecting Applications with SQL
SQL is increasingly important for developers working with enterprise databases. The course includes SQL operations within the DB2/400 section and embedded SQL programming within RPG. This combination is useful because developers may need to work with database operations directly from application code.
Typical development activities may include:
- Retrieving records
- Updating information
- Inserting data
- Deleting records
- Working with cursors
- Managing database relationships
- Creating data-driven reports
A developer with both RPG and SQL knowledge can better understand the relationship between application logic and stored business data.
Practical Development and Debugging
Knowing how to write code is only one part of enterprise application development. Developers also need to understand how to investigate problems and maintain existing systems. Practical learning can help professionals understand application behavior through realistic scenarios rather than relying only on theoretical explanations. The Multisoft Systems program emphasizes project-based learning, real-time scenarios, industry case studies and hands-on assignments.
This approach can help learners develop confidence in areas such as:
- Identifying application issues
- Understanding program flow
- Working with databases
- Reviewing existing code
- Handling errors
- Testing application changes
- Supporting business requirements
- Maintaining enterprise applications
Who Should Consider This Training?
The course is particularly relevant to professionals who already have a foundation in Java programming and distributed systems concepts. The official course prerequisites specify basic Java knowledge and in-depth knowledge of distributed systems concepts.
The program can be suitable for:
- Software Developers
- Application Developers
- IBM i Professionals
- Java Developers moving toward IBM i
- Enterprise Application Developers
- Technical Support Professionals
- Database Professionals
- IT Professionals working with legacy applications
- Professionals seeking IBM i development skills
The official course target audience states that people with Java and distributed systems skills who want to learn IBM AS400 can attend the program.
What You Can Learn Through the Program
The curriculum provides coverage across several technical areas rather than concentrating on one programming language.
Key learning areas include:
- OS/400 system concepts and architecture
- Libraries, files and members
- Library list concepts
- Application Development Tool Set
- DB2/400
- DDS
- Physical and logical files
- Database integrity
- Commitment control and journaling
- SQL operations
- CL/400 programming
- Error and message handling
- Data areas and data queues
- RPG/400
- RPG free-format programming
- Embedded SQL
- ILE concepts
- Modules and procedures
- Service programs
- Binder language
These topics are drawn from the published Multisoft Systems curriculum.
Benefits of Learning IBM AS400 Development
Developing IBM i skills can provide value to professionals who want to work with established enterprise systems while expanding their technical capabilities.
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Better Understanding of Enterprise Applications
Learners can understand how applications, databases and operating system components work together within an IBM i environment.
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Stronger Programming Skills
RPG, RPGLE, CL and SQL knowledge can provide a broader technical foundation for enterprise application development.
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Database Development Knowledge
DB2/400 and SQL training helps learners understand how business applications interact with structured enterprise data.
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Application Maintenance Capability
Professionals can build knowledge needed to review, modify and maintain existing IBM i applications.
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Broader Technical Exposure
The combination of programming, database and system concepts provides a more complete understanding of the development environment.
IBM AS400 Developer Training Online for Working Professionals
Online instructor-led learning can be useful for professionals who want to develop new skills without completely changing their existing work schedule. Multisoft Systems offers live online classes along with customized learning schedules and doubt-clearing sessions. The course page lists weekday and weekend batches, allowing learners to choose a suitable training pattern. An online learning format can also make it easier for professionals from different locations to participate in instructor-led sessions.
IBM AS400 Developer Certification and Professional Recognition
Training and certification can help professionals demonstrate their commitment to developing technical skills. Multisoft Systems provides a course completion certificate and states that its certification training includes a certificate containing course details, issuance date, learner name and digital signature of the awardee. It is important to distinguish a training completion certificate from an external vendor certification. Learners should review the specific certification requirements applicable to their career goals.
Assessment and Skill Evaluation
The program also includes an IBM AS400 Developer MCQ assessment. According to the course page, the assessment covers course understanding through multiple-choice questions and short answers, along with analytical thinking, problem-solving and communication skills. Such assessments can help learners identify areas that need additional revision before applying their knowledge in professional situations.
Corporate Learning for IBM i Teams
Organizations with IBM i development or support teams can also use customized training to strengthen internal capabilities. Multisoft Systems offers corporate training that can be tailored according to organizational learning requirements, schedule, duration and course-material needs.
A corporate learning program can help teams develop a common understanding of:
- RPG development
- DB2/400
- CL programming
- SQL
- ILE
- Application maintenance
- IBM i architecture
- Enterprise application support
This can be useful when organizations want to improve team capability or onboard professionals into IBM i projects.
Career Opportunities After IBM i Development Training
- IBM i Developer
- AS400 Developer
- RPG Developer
- RPGLE Developer
- IBM i Application Developer
- IBM i Support Developer
- Enterprise Application Developer
- IBM i Technical Consultant
- Application Maintenance Specialist
- Database and Application Support Professional
- IBM i Programmer
- Software Development Consultant
- IBM i Systems Analyst
- Application Support Engineer
- IBM i Development Specialist
Why Choose Multisoft Systems?
Multisoft Systems provides an instructor-led and project-based learning approach for professionals interested in IBM AS400 development. The published course highlights include experienced trainers, hands-on learning, customized training delivery, doubt-clearing sessions and a course completion certificate. The program also provides access to practical learning resources, including interview questions, practice quizzes and course assessments. For professionals who want structured guidance rather than self-study alone, this combination can provide a practical way to explore IBM i development concepts.
The Future of IBM i Development
Enterprise technology continues to evolve, but modernization does not always mean replacing every established system. Organizations often need to maintain reliable applications while gradually introducing new technologies, integrations and development practices. This creates an environment where professionals who understand existing IBM i applications and can work with modern development concepts can provide useful technical support. Knowledge of RPG, RPGLE, SQL, DB2 and ILE can therefore be combined with broader skills such as application integration, database development and enterprise software maintenance. For developers, this creates an opportunity to build a specialized technical profile rather than relying on general programming knowledge alone.
Conclusion
IBM i remains relevant to organizations that depend on reliable enterprise applications and structured business systems. Developing applications in this environment requires knowledge of programming, databases, operating system concepts and application architecture. IBM AS400 Developer Training from Multisoft Systems provides a structured learning path covering OS/400, DB2/400, CL/400, RPG/400 and ILE. The curriculum also includes SQL, embedded SQL, database processing, application development concepts and practical project-based learning.
For developers and IT professionals who want to strengthen their IBM i expertise, an IBM AS400 Developer Course can provide a focused foundation for working with enterprise applications. Online instructor-led delivery, practical exercises, assessments and customized schedules can further support professionals who are building skills alongside their current responsibilities.
