Computer systems design, integrated end to end
Gefan works with e-commerce companies and retail groups to design, build, and integrate the computer systems behind a modern store. We focus on the four pillars of retail technology: catalogues, orders, logistics, and support. Every engagement starts with your real processes and ends with a system your team can run with confidence.
Six service lines for a complete commerce stack
Each service below can be delivered on its own or combined into a single integrated program. Our clients choose the scope that matches their stage of growth, and we grow the system alongside them as their order volumes rise.
E-Commerce Systems Design
We design the complete architecture of an e-commerce computer system, from the product database to the checkout flow. The work begins with a study of your inventory, your pricing rules, and your customer journeys. We then produce a detailed system specification that your developers or our partners can build from, with clear data models, screen flows, and integration points. The result is a system that is fast, reliable, and easy to extend when your catalogue grows.
Computer Integrated Systems Design
Modern retail rarely runs on one system alone. We design the integration layer that connects your storefront, your warehouse software, your payment provider, and your logistics partners into one coherent operation. This includes message formats, error handling, and reconciliation rules so that data never gets lost between systems. Integrated design removes manual work, reduces mistakes, and gives you one reliable picture of the business at all times.
Catalogue and Product Data Engineering
A clean catalogue is the foundation of every good storefront. We design product data structures, attribute schemes, and image handling rules that keep your listings consistent and your search results accurate. We also build the import and validation pipelines that keep your catalogue in sync with your suppliers, so stock levels and prices stay honest on every channel where you sell.
Order and Payment System Integration
Orders must move from the shopping cart to the warehouse without a single lost step. We design order capture flows, payment validation, fraud checks, and status tracking that keep every transaction accurate and auditable. Our integration work connects your system to the payment methods your customers already trust, and it produces clean reports that make reconciliation a simple morning routine.
Logistics and Fulfilment Systems
Delivery is where a store keeps its promises. We design the shipping logic that selects the right carrier for each order, prints the correct labels, and pushes tracking updates to your customers automatically. The fulfilment system we design coordinates warehouse picking, packing, and dispatch so that your parcels leave on time and your customers know exactly when they will arrive.
Support, Maintenance, and Evolution
A system needs care after it goes live. We provide structured support, monitoring, and scheduled maintenance so your storefront keeps running at full speed. When your business grows, we extend the system with new features, new channels, and new integrations. Our goal is a long partnership in which the system stays a step ahead of your ambitions rather than a step behind them.
How a project moves from idea to live system
Every project follows the same disciplined path. The process keeps us honest, keeps you informed, and makes sure the final system matches the plan we agreed on at the start.
Discovery
We interview your team, review your current systems, and map the processes that keep your business running. This stage produces a clear statement of what the new system must do.
Design
We turn the findings into a complete system design: data models, screen flows, integration points, and performance targets. You review every page of the specification before we build anything.
Build and Test
Development proceeds in short cycles with a test environment you can watch from day one. Each module is tested against real scenarios before it is ever connected to live data.
Launch and Support
We migrate your data, switch on the system, and train your team. After launch we monitor performance and remain on call, because a live system is where the real work begins.
Describe your store, and we will design the system around it.
Share your catalogue size, order volumes, and current pain points. Within days we can return a first assessment of the systems you need and a realistic plan to build them.