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VB 6.0 to .NET Migration

Case Study: A leading lender / servicer company's enterprise systems reengineering

Objective: Replatforming enterprise Logistics / ERP / Sales / Accounting System to .NET – End-to-End

Visionet Systems delivers world class business results to the apparel, manufacturing, retail, and wholesale industries through supply chain technology, consulting, and managed services.

Lender Servicer Enterprise Systems Reengineering Case Study

Lender Servicer Enterprise Systems Reengineering Case StudyDownload PDF
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Business Benefits
  • World-class N-tier Web Based business applications Application using .NET Technology
  • Service Oriented Architecture (SOA) Based Architecture
  • Reduce overall business costs
  • Separation of Database Specific API from the .NET Code
  • Reusable Component Based Architecture


Existing Application

  • VB 5 Desktop Application
  • Oracle 8i
  • Citrix

The Challenges

  • UI elements were being directly referred in the Business Layer resulting in difficulty in conversion to .NET as certain controls in the UI are not easy to convert.
  • The objects generated as result of Existing Data Access Layer were not thread safe.
  • The business logic was not very well consolidated.
  • Existing architecture lacked support for SOA, flexibility and extensibility
  • Typical Challenges of Desktop Application (Navigation, Dedicated DB Connections, Application Distribution)
  • Licensing issues due to Citrix.
  • Deployment issues to multiple client installation.

Re-Platform Key Objectives

  • N-tier web based application using .NET technology
  • WEB farm using IIS6.0
  • SOA based architecture.
  • Web Services for integration with external systems
  • Framework based on MVC Architecture
  • Dynamic Page generation capability
  • Dynamic invocation of business layer. (Developer would just Code the business layer and configure the hooking through XML).
  • Making Maximum use of Existing Code.
  • Add functionality without Framework Recompile!
  • A Flexible Validation framework
  • Flexibility to Add Smart Clients.
  • Scalable.
  • Separation of Database Specific API from the .NET Code
  • Reusable Component Based Architecture

Impacted Business Lines

  • MRP

Number of Users
3000 users

Number of Concurrent Users
1500

Project Duration
24 Months (in progress)

Project Effort
120,000 Hours

Existing Application Line of Code
2 MLOC

See Visionet's other Enterprise Class Projects Case Studies

Enterprise Class Project for Lender/Servicer QC System & Centralized Fraud Repository
Loan Origination Systems
Loan Servicing Systems
Documents Management Systems
Seller Pursuit
Quality Control
Audit Response
EPD Communication & Tracking
Post-Closing
ADA / NPA Mass Analysis Project
Investor Repurchase
Liquidated Loan Loss Repository
Seller Eligibility Group

Enterprise Class Project for Apparel / Soft Goods Designer
Business Planning System
Supply & Demand Solution
Re-engineer Inbound Receiving Process
Electronic Data Interface
Intranet Applications Portal
Retail and Merchandising System
Product Lifecycle System
Logistics

Enterprise Class Project for Title and Escrow System Platform Reengineering
Title Production
Recording Production
Automated Workflow
Vendor Management
Settlement Services
Flood and Credit
Escrow Services
Appraisal Services
Business Rule Management System
Business Intelligence
Compliancy

 

 

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