Personal Finance Management System for a Bank

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Case Study Summary

A banking-focused IT integration company needed a solution that could automatically analyse and categorise customer transactions to improve the quality of online banking experiences.

WEBSENSA built a Personal Finance Management module based on JavaScript and Oracle Database – a solution that achieved 90% classification accuracy and enabled end users to easily track and analyse their spending.

The cooperation began in 2017 and continues today, covering maintenance, updates, and new feature development. The client highlighted WEBSENSA’s expertise in personal finance management and strong communication as key success factors.

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The client needed automation and better data quality for online banking

The IT company approached WEBSENSA with the need to create a modern Personal Finance Management engine that could automatically categorise customer transactions and present them in a clear, user-friendly way.

The challenge: turning raw transaction data into actionable insights

The goal was to create a module that would:

• automatically assign each transaction to the correct category (e.g. groceries, alcohol, loans, household expenses),
• handle large volumes of data reliably,
• present financial insights clearly,
• enable end users to compare their spending month-over-month and year-over-year.

How WEBSENSA built an advanced Personal Finance Management engine

Based on documentation, mock-ups, and transactional data provided by the client, WEBSENSA delivered a complete PFM module built with:

• JavaScript – classification logic,
• Oracle Database – data layer,
• a set of rules trained and refined using real customer transactions.

The scope included:

• architecture planning and data analysis,
• developing classification rules,
• testing on real banking data,
• creating the interface used to display categories and financial breakdowns,
• deployment support and ongoing system maintenance.

Following the initial launch, WEBSENSA continues to support the system through:

• new feature development,
• regular updates,
• improvements to classification logic.

From planning to implementation – how the project was executed

The WEBSENSA team consisted of 3-4 specialists, working directly with the client’s project manager.
Communication – handled via phone and email – was described by the client as “very smooth and professional”.

Timeline:

• start of cooperation: May 2017,
• delivery of the main system: May 2018,
• ongoing partnership (maintenance + new features).

The results: high accuracy and measurable value for the financial sector

The system achieved over 90% transaction categorisation accuracy, with the remaining 10% representing highly unique, unpredictable operations.

The client assessed the collaboration as highly successful and considered the quality of the solution among the best they had worked with.

Additional benefits:

• improved user experience in online banking,
• better clarity of transaction data,
• access to spending trends and detailed financial breakdowns.

Client’s Feedback (Clutch)

• ‍Quality: 5.0‍
• Schedule: 4.0‍
• Cost: 4.0‍
• Willingness to Refer: 5.0

"We’ve been most impressed with WEBSENSA’s expertise in personal finance management." – Project Manager, IT Integrations Company

(verified phone interview, Clutch)

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