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  5. Diagnosing and Stabilizing a Legacy Engineering Application
Technical Consulting & Troubleshooting

Diagnosing and Stabilizing a Legacy Engineering Application

Manufacturer

The Problem

An existing engineering-change application had slow startup, slow record opening, slow tab changes, slow BOM imports, and data-consistency concerns.

The Solution

FreedomDev first performed technical discovery rather than immediately recommending replacement. Work included:

  • Reviewing Visual Basic and SQL Server code
  • Identifying technical issues
  • Creating a test environment
  • Improving application-state handling
  • Adding database transactions
  • Reviewing permissions
  • Converting user-input queries to parameterized SQL
  • Adding error logging
  • Parallelizing database connections
  • Caching static dropdown information
  • Replacing inefficient query-per-row behavior with batch queries

Outcome

The company gained targeted stability and performance improvements based on investigation of the actual underlying problems.

Services & Technologies

SQLApplication PerformanceLegacy SystemsTechnical ConsultingSQL Server

Related Work

Understanding an Undocumented Web Service Before Changing It

FreedomDev investigated and documented an existing web service so the client could understand the system before deciding what to change.

Modernizing a 20-Year-Old Business System and Reporting Platform

FreedomDev helped modernize a 20-year-old business application by moving it toward PostgreSQL on Azure while preserving its business logic and replacing a six-hour nightly reporting process.

Modernizing an Internal Application Suite with React

A large manufacturer needed to modernize a suite of internal applications. FreedomDev created a reusable React component foundation and migrated the first application while preserving existing functionality.

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