Services
We bring deep technical expertise to every engagement. Our four-phase model ensures we understand your business before we write a single line of code.
Our Engagement Model
BPE
Business Process Evaluation. We map your current processes, interview stakeholders, and document the business rules embedded in your systems — including the undocumented ones.
TE
Technical Evaluation. We assess your platforms, code, dependencies, and performance baselines to define the full technical landscape.
PSS
Planning & Solution Strategy. We design the target architecture, define milestones, and build a phased execution plan that manages risk.
Execution
Hands-on development, migration, testing, and knowledge transfer. We deliver working systems and make sure your team can maintain them.
Legacy System Modernization
Your legacy applications work. They run your business. But they're built on platforms that are increasingly difficult to staff, expensive to maintain, and incompatible with modern integration demands.
We don't do line-for-line code conversion. We understand what your systems actually do — the embedded business rules, the edge cases, the undocumented tribal knowledge — and then we reimagine them on modern platforms.
Platforms & Technologies
- • IBM i (RPG, CL, COBOL) on Power Systems — AS/400, iSeries, System i
- • COBOL to .NET and modern platform migrations
- • Cross-platform application architecture (Windows, AIX, Linux, IBM mainframe)
- • Database modernization and DB2 optimization
- • UI modernization — from green-screen to web-based interfaces
EDI Development & Administration
Electronic Data Interchange remains the backbone of supply chain communication. We handle the full EDI lifecycle — from initial mapping and partner onboarding through ongoing operations and compliance.
ANSI X12 Transaction Sets
What We Deliver
- • EDI mapping, translation, and validation
- • Trading partner onboarding and testing
- • Ongoing EDI operations and monitoring
- • Compliance and audit support
Performance Optimization
We focus on performance so you can focus on growing your business. Our team provides performance expertise for organizations that need specialized knowledge to manage mission-critical systems and applications.
Unlike your hardware and software vendors, we don't stop at the edge of a particular system. We bring dedicated, multi-platform expertise to solve complex cross-platform performance problems.
Capabilities
- • Performance troubleshooting and root cause analysis
- • Capacity planning and forecasting
- • Historical analysis and trend reporting
- • Continuous monitoring solutions
- • IBM i performance tools expertise (iDoctor, Collection Services, DB2 SQL Performance Monitor)
PerfScan
Greymine developed PerfScan — a modern performance management tool for IBM i that handles capacity planning, historical analysis, and problem determination. Purpose-built to be practical, affordable, and straightforward.
AI-Assisted Development
AI is a tool — a powerful one — but it doesn't replace deep domain understanding. We integrate AI into development workflows where it delivers measurable value: code analysis, documentation generation, test creation, and pattern recognition across large legacy codebases.
The goal is to augment human expertise, not automate away the judgment calls that matter most. AI helps our team move faster through the mechanical parts of modernization so we can spend more time on the decisions that require experience.
Where AI Adds Value
- • Legacy code analysis and documentation
- • Business rule extraction from undocumented systems
- • Automated test generation and regression coverage
- • Pattern recognition across large codebases
- • Accelerated code migration and refactoring
Infrastructure Services
Managing an enterprise IT environment is complex. Your mission-critical systems need to be available around the clock. We provide the operational expertise to keep them running while you focus on your business.
Let's discuss your project
Every engagement starts with a conversation. Tell us about your environment and we'll outline how we can help.
Contact Us