{"id":3248,"date":"2026-09-01T10:03:28","date_gmt":"2026-09-01T02:03:28","guid":{"rendered":"http:\/\/www.eishasoftinc.com\/blog\/?p=3248"},"modified":"2026-09-01T10:03:28","modified_gmt":"2026-09-01T02:03:28","slug":"can-you-give-an-example-of-low-coupling-code-4808-0beff4","status":"publish","type":"post","link":"http:\/\/www.eishasoftinc.com\/blog\/2026\/09\/01\/can-you-give-an-example-of-low-coupling-code-4808-0beff4\/","title":{"rendered":"Can you give an example of low – coupling code?"},"content":{"rendered":"

In the realm of software development, the concept of low – coupling is a cornerstone for creating robust, maintainable, and scalable systems. As a Coupling supplier, I’ve witnessed firsthand the transformative power of low – coupling code in various projects. In this blog, I’ll share a practical example of low – coupling code to illustrate its significance and benefits. Coupling<\/a><\/p>\n

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Understanding Low – Coupling<\/h3>\n

Before diving into the example, let’s briefly understand what low – coupling means. Coupling refers to the degree of interdependence between different components or modules in a software system. High – coupling means that changes in one module can have a significant impact on other modules, making the system difficult to maintain and extend. On the other hand, low – coupling implies that modules are relatively independent of each other, so changes in one module are less likely to affect others.<\/p>\n

A Real – World Example: An E – commerce Application<\/h3>\n

Let’s consider an e – commerce application that has several key components: a product catalog, a shopping cart, and an order processing system. Each of these components has its own responsibilities, and we want to design them in a way that minimizes the coupling between them.<\/p>\n

The Product Catalog Module<\/h4>\n

The product catalog module is responsible for managing all the products available in the e – commerce store. It provides methods to retrieve product information such as product name, price, and description. Here is a simplified Python implementation of the product catalog class:<\/p>\n

class ProductCatalog:\n    def __init__(self):\n        self.products = {\n            "P001": {"name": "Smartphone", "price": 599.99, "description": "A high - end smartphone"},\n            "P002": {"name": "Laptop", "price": 1299.99, "description": "A powerful laptop for work and gaming"}\n        }\n\n    def get_product_info(self, product_id):\n        return self.products.get(product_id)\n\n\n<\/code><\/pre>\n
The Shopping Cart Module<\/h4>\n
The shopping cart module allows users to add and remove products from their cart. It interacts with the product catalog to get the product information but in a low – coupling way. Here is the implementation:<\/p>\n
class ShoppingCart:\n    def __init__(self, product_catalog):\n        self.cart = {}\n        self.product_catalog = product_catalog\n\n    def add_product(self, product_id, quantity):\n        product_info = self.product_catalog.get_product_info(product_id)\n        if product_info:\n            if product_id in self.cart:\n                self.cart[product_id]["quantity"] += quantity\n            else:\n                self.cart[product_id] = {\n                    "name": product_info["name"],\n                    "price": product_info["price"],\n                    "quantity": quantity\n                }\n\n    def remove_product(self, product_id):\n        if product_id in self.cart:\n            del self.cart[product_id]\n\n    def get_total_price(self):\n        total = 0\n        for product in self.cart.values():\n            total += product["price"] * product["quantity"]\n        return total\n\n\n<\/code><\/pre>\n
The Order Processing Module<\/h4>\n
The order processing module is responsible for processing the orders placed by the users. It takes the shopping cart as input and generates an order.<\/p>\n
class OrderProcessing:\n    def __init__(self):\n        pass\n\n    def process_order(self, shopping_cart):\n        total_price = shopping_cart.get_total_price()\n        # Here we can add more logic like payment processing, order confirmation, etc.\n        print(f"Order processed successfully! Total amount: ${total_price}")\n\n\n<\/code><\/pre>\n
Analysis of Low – Coupling<\/h3>\n