Advanced Estimation / Quotation System
The client required a comprehensive, interactive signage estimation tool tailored for enterprise use in project planning and budgeting across multiple locations and sections. The system needed to handle dynamic data input, real-time calculations, structured item listings, and high usability — all within a complex but intuitive user interface.
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Objectives
- Design a multi-tabbed dynamic form to manage signage estimation by locations and sections.
- Allow users to add, rename, and configure locations/sections on-the-fly, with synchronized content updates.
- Enable precise item-level cost estimations using both predefined pricing and custom calculation logic.
- Deliver a fluid user experience with features like drag-and-drop, image-assisted input, and accordion-tab sync.
Key Features & Technologies
The system was engineered using lightweight and performance-optimized tools to deliver a smooth, interactive experience.
- Frontend: Vanilla JavaScript, Reactjs, Select2, jQuery UI (Draggable/Sortable), Bootstrap
- Backend: PHP (custom lightweight framework), AJAX-based interaction
- Core Features:
- Select2-enhanced searchable dropdowns with categorized options
- Real-time tab renaming with synchronized UI
- Accordion-style side panel for managing section/location metadata
- Draggable, nested item list with subtotal calculations
- Inline algebraic calculator (
e.g., 815*1.1*1.6) for dynamic price computation - Dialog-based reference image viewer for precision input
Challenges & Solutions
| Challenge | Resolution |
|---|---|
| Complex dynamic UI with state sync | Built custom synchronization logic between accordions and tab panels |
| Managing extensive dropdown data | Used Select2 with categorized search for speed and clarity |
| Real-time cost computation from formulas | Developed a secure client-side expression parser with fallback handling |
| Avoiding form clutter in dense layout | Implemented collapsible UI panels and draggable modal images |
Outcome & Impact
- Enhanced project estimation accuracy and speed for large-scale signage deployments
- Reduced manual calculation errors through automated subtotal computation
- Received strong positive feedback on drag-and-drop UI and image-assisted input workflow
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