Modernization roadmap showing how portfolio of 100-application cloud migration program?

Modernization roadmap showing how:

• CAST (for portfolio analysis, complexity scoring, dependency mapping, cloud readiness scoring)

• vFunction (for service extraction, continuous modernization, refactoring)

fit into your 100-application cloud migration program?

Step 1 – Portfolio Discovery & Assessment

• Collect inventory of all 100 applications (metadata, infra, DBs, integration points).

• Input: All 100 applications (codebase, DB, dependencies).

• Run CAST Highlight / CAST AIP across applications to:

  • Generate Cloud Readiness Score (per app).

  • Identify complexity, technical debt, code quality issues, and interdependencies.

  • Build application dependency map → shows which apps can be moved first vs which are tightly coupled.

  • Architecture blueprints, module dependencies, APIs, DB calls.

  • Security vulnerabilities, compliance issues.

• Output:

  • Categorization (Rehost, Refactor, Replatform, Retire).

  • Cloud Readiness Score for each application.

  • Heatmap: which apps are “Lift & Shift”, which need “Replatform”, which need “Refactor/Re-architect”.

  • Prioritized modernization candidates (e.g., Legacy Lending app = High Refactor need).

  • Prioritized roadmap.

Step 2: Microservices Refactoring (vFunction)

• Input: CAST insights + source code of high-priority apps (e.g., legacy lending).

• vFunction analyzes:

  • Business logic domains.

  • Dead code, technical debt.

  • Service boundaries using event flows, call graphs, domain-driven design.

• Output:

  • Suggested domain-driven microservice candidates.

  • Event-driven refactoring plan (e.g., split KYC, Loan Evaluation, Credit Score, Disbursement).

  • Architecture blueprint for modernization.

Step 3 – Roadmap Definition

• Combine CAST (portfolio-wide view) + vFunction (app-level refactor view).

• Create roadmap:

  • Wave 1: Migrate 30 apps (lift & shift or minor replatform).

  • Wave 2: Refactor high-value apps (legacy lending, payments) into microservices.

  • Wave 3: Full-scale migration, optimize with DevSecOps & Azure-native services.

  • Align with business priorities (critical vs non-critical).

• Output: Cloud migration roadmap (12–24 months).

  
  

Step 4 – Target Application for Deep Modernization

• Example: Legacy Lending Application identified as "High Complexity + High Business Value".

• Run vFunction on this app to:

  • Ingest codebase and runtime metrics.

  • Analyze service boundaries, dependencies, and business flows.

  • Suggest microservice candidates and domain-driven decomposition.

• Output: Service blueprint for refactoring into microservices.

Step 4 – Execution

• For simpler apps (Rehost/Replatform):

  • Move to Azure as-is (VMs, containers, PaaS).

• For complex apps (Refactor via vFunction):

  • Incrementally extract services.

  • Deploy into Azure AKS, integrate with Azure DevOps pipelines.

  • Use CAST dashboards to track compliance with enterprise standards.

Step 5 – Continuous Modernization

• CAST provides architecture guardrails (quality gates, dependency checks) → ensures ongoing compliance.

• vFunction enables continuous refactoring → as business evolves, new services can be extracted or optimized.

✅ Summary Flow (Text Only):

Application Portfolio (100 apps) 
   ↓
CAST Analysis → Cloud readiness score + dependency mapping
   ↓
Roadmap definition (waves, priorities)
   ↓
Simple apps → Rehost/Replatform on Azure
   ↓
Complex legacy apps → vFunction refactor to microservices
   ↓
Azure Cloud Deployment (AKS, App Services, DBaaS, DevOps pipelines)
   ↓
CAST (compliance) + vFunction (continuous modernization)

👉 So CAST is your portfolio-wide assessment & readiness scoring engine,

👉 vFunction is your refactoring & microservices extraction accelerator.