EBS To Cloud Migration

ONAS follows a structured, professional view of Oracle EBS to Oracle Fusion Cloud migration.

Oracle EBS to Oracle Fusion Cloud migration is a business transformation initiative, not merely a technical upgrade.

It involves:Process redesign
Cloud architecture adoption
Data modernization
Integration re-engineering
Governance and control enhancement

At ONAS, we deliver a structured and business-focused approach to Oracle EBS to Oracle Fusion Cloud migration. Our methodology ensures reduced risk, minimal downtime, and a smooth transition to a scalable, secure cloud environment.

Our high-level migration framework includes:

Discovery & Assessment – Evaluate the current EBS environment, customizations, integrations, and risks.
Future-State Design (HLD) – Define the target Fusion Cloud architecture and optimized business processes.
Build & Configuration – Configure Fusion modules aligned with business and compliance requirements.
Data Migration & Integration – Cleanse, transform, and migrate data while ensuring seamless integrations.
Testing & Validation – Conduct SIT, UAT, and performance testing for accuracy and reliability.
Cutover & Go-Live – Execute a controlled deployment with minimal business disruption.
Hypercare & Stabilization – Provide post-go-live support, monitoring, and optimization.
With ONAS, migration is not just a system upgrade — it is a strategic transformation toward agility, efficiency, and long-term cloud success.

Business Process Transformation

As-Is process documentation
gap workshops
To-Be process design
Control framework alignment

Application Architecture

Fusion module selection
Environment strategy (DEV / TEST / PROD)
Integration architecture
Reporting architecture

Data Migration

Master data strategy
Open transaction migration
Historical data decision
Reconciliation framework

Integration Redesign

API-based integrations
Oracle Integration Cloud (OIC) usage
Bank interfaces redesign
External system mapping

Security & Compliance

Role-based access control
Segregation of Duties (SoD)
Workflow approvals
Audit logging

Reporting & Analytics

OTBI & BI Publisher
Financial Reporting Studio
KPI redesign
Regulatory reporting

Change Management

Stakeholder engagement
Training programs
Communication plan
Adoption monitoring

Governance & PMO

Steering committee
Risk log
Issue management
Change control board

At ONAS, we deliver a structured and outcome-driven migration framework for Oracle ERP transformations.

Our approach ensures a smooth transition from legacy systems to cloud platforms with minimal business disruption, strong governance, and long-term scalability.

We focus on assessment, optimization, and strategic alignment to maximize business value.

Current State Assessment:

ONAS begins with a detailed evaluation of the existing system landscape to understand technical and functional complexities. This includes:

•Module Inventory – Identifying active business modules and usage scope.

•Customization Inventory – Reviewing custom developments and extensions.

•Interface Register – Assessing integrations with third-party systems.

•Report Inventory – Evaluating existing reports and analytics usage.

•Data Volume Assessment – Analyzing data size, quality, and archival needs.

•Security Model Review – Examining roles, access controls, and compliance structure

Fit-Gap Analysis:

ONAS conducts a comprehensive fit-gap analysis to align business processes with cloud capabilities:

•Adopt Standard – Leverage standard cloud functionalities wherever possible.

•Configure – Adjust system settings to meet business requirements.

•Extend (PaaS) – Develop necessary extensions using cloud platform services.

•Retire – Eliminate redundant customizations or obsolete processes.

This structured evaluation ensures optimized cloud adoption with reduced complexity and improved operational efficiency.

At ONAS, we deliver a structured and reliable Data Migration Framework to ensure accurate, secure, and seamless movement of data from legacy systems to cloud platforms. Our approach focuses on data quality, reconciliation accuracy, and business continuity during migration

Data Categories:

• manage and migrate all critical business data, including:

• Master Data – Customers, Suppliers, COA, Items, Purchase data, Employees, etc.

• Open Transactions – AP, AR, PO, PA transactions.

• GL Balances – Historical and opening balances.

• Fixed Assets – Asset records and depreciation details.

• Reference Data – Lookup values and configuration-related data.

Migration Lifecycle:

Our migration follows a controlled and validated lifecycle:

Extract → Cleanse → Transform → Load → Validate → Reconcile → Sign-Off

• Extract data from legacy systems

• Cleanse and remove inconsistencies

• Transform to target format

• Load into cloud system

• Validate & Reconcile for accuracy

• Business Sign-Off before go-live

• Tools Used: FBDI, HDL (HCM), REST APIs, OIC

At ONAS, we deliver a structured Customization and Extension Strategy to help organizations smoothly transition from Oracle EBS to Oracle Fusion Cloud.

We analyze existing custom components in EBS and redesign them using Oracle Fusion’s modern, cloud-based extensibility tools. Our goal is to minimize risk, reduce technical debt, and adopt best-practice cloud standards.

EBS Often Contains:

• Custom Forms

• PL/SQL Packages

• Database Triggers

• Custom Reports

•Interface Programs

• Workflow Customizations

These custom objects are carefully assessed to decide whether they should be replaced, redesigned, or retired in Fusion.

Fusion Approach:

• Page Composer (UI personalization)

• Application Composer (Object extensions)

• BI Publisher (Advanced reporting)

• PaaS Extensions (Cloud-based custom apps)

• REST APIs (Secure integrations)

• Oracle Integration Cloud (System connectivity)

ONAS ensures that all customizations are transformed into scalable, upgrade-safe, and cloud-native extensions aligned with Oracle best practices.

At ONAS, we deliver comprehensive Security Model Redesign services as part of Oracle ERP transformation programs. We help organizations transition from traditional access structures to a modern, secure, and compliant role-based framework.

EBS Security Model:

In Oracle EBS, security is Responsibility-Based.
Users are assigned responsibilities that control access to forms,menus, and functions.

EBS:
Responsibility-based
Fusion: Role-Based Access Control (RBAC)

Fusion Security Model:

In Oracle Fusion Cloud, security follows Role-Based Access Control (RBAC).
Access is structured in layered roles to provide better control, segregation of duties, and compliance.

Fusion Structure:

User

↓

Job Role

↓

Duty Role

↓

Data Role

•User – End user in the system

•Job Role – Defines job function (e.g., AP Manager)

•Duty Role – Defines specific tasks and privileges

•Data Role – Controls access to business units, ledgers, or data

ONAS ensures a smooth transition from EBS responsibility-based access to Fusion’s structured RBAC model, improving security, governance, and compliance.

At ONAS, we deliver a structured and comprehensive Testing Strategy to ensure a smooth and risk-free Oracle transformation. Our approach focuses on validating system functionality, integrations, performance, and business process accuracy before go-live.

Testing Phases:

Unit Testing – Validate individual configurations and components.
System Integration Testing (SIT) – Test end-to-end business processes and integrations.
User Acceptance Testing (UAT) – Business users validate real-time scenarios.
Regression Testing – Ensure new changes do not impact existing functionality.
Performance Testing – Verify system speed, stability, and load handling.

Critical Focus Areas:

Data Reconciliation – Ensure accurate data migration and financial balance validation.
Revenue Recognition – Validate compliance with accounting standards.
Integration Stability – Confirm smooth data flow between systems.
ONAS ensures every phase is carefully executed to deliver a stable, secure, and high-performing system at go-live.

At ONAS, we follow a well-planned Cutover Strategy to ensure a smooth and controlled transition from legacy systems to Oracle Fusion Cloud. Our approach minimizes business disruption and ensures accurate data migration during go-live

Cutover Activities:

Final Data Extract – Extract latest and accurate data from the legacy system.
Open Balance Upload – Load financial balances and open transactions into Fusion.
Integration Switch – Redirect integrations from old system to the new system.
Production Validation – Validate transactions and key reports in production.
Go-Live – Officially transition business operations to the new system

Controls:

Freeze Window – Restrict system changes during cutover period.
Reconciliation Sign-off – Confirm data accuracy and financial balances.
Go-Live Checklist – Ensure all critical steps are completed before launch.
ONAS ensures every cutover step is carefully monitored, validated, and approved to deliver a smooth and successful go-live.

At ONAS, we deliver dedicated Post Go-Live Hypercare Support to ensure system stability and smooth business operations after implementation. Our team closely monitors the system and provides immediate support during the critical stabilization period

Hypercare Activities:

Daily Monitoring – Track system transactions, integrations, and reports to ensure smooth operations.
Issue Triage – Quickly identify, prioritize, and resolve functional or technical issues.
Performance Tuning – Optimize system performance and improve response times.
Quarterly Update Readiness – Prepare and validate system updates to ensure smooth cloud releases.
ONAS ensures strong support during the hypercare phase, helping organizations achieve a stable, optimized, and fully operational system.

At ONAS, we deliver a structured and transparent Governance Model to ensure successful Oracle EBS to Oracle Fusion Cloud transformation. Our governance framework provides clear leadership, defined accountability, and smooth project execution from start to finish.

Governance Structure:

Steering Committee
Provides strategic direction, approves key decisions, and ensures alignment with business goals.
Program Director
Leads the overall program, manages delivery timelines, budget, and stakeholder communication.
Functional Leads
Drive business process design, configuration, and ensure functional requirements are met.
Technical Leads
Manage integrations, data migration, extensions, and technical architecture.
Data & Testing Teams
Handle data validation, system testing, user acceptance testing (UAT), and quality assurance

Includes:

Weekly Status Reviews – Regular progress tracking and stakeholder updates
Risk Register – Identification and proactive mitigation of project risks
Escalation Matrix – Clear issue resolution hierarchy
Audit Checkpoints – Compliance validation and quality control reviews