Web development

Definition

Web development is the process of building and maintaining websites and web applications. It covers everything from coding the structure and functionality of a site to ensuring performance, security, and scalability. Web development typically includes front end development, back end development, and database management.

For example, an e commerce store is developed with a product catalog, shopping cart, and secure checkout system, all supported by databases and server side logic.

Advanced

Web development uses programming languages such as JavaScript, Python, PHP, and frameworks like React, Angular, Django, or Laravel. Front end development focuses on the user interface and browser interactions, while back end development handles servers, APIs, and databases.

Advanced practices include responsive design, API integrations, containerisation, and DevOps for continuous integration and delivery. Security measures such as HTTPS, authentication, and input validation are critical to protect user data. Cloud platforms and microservices architecture are increasingly used to improve scalability and resilience.

Why it matters

• Provides businesses with a functional digital presence.
• Enables e commerce, SaaS, and online service models.
• Impacts performance, user experience, and search rankings.
• Supports scalability and future business growth.

Use cases

• Building corporate websites and online stores.
• Developing web applications such as CRMs and dashboards.
• Integrating APIs for payments, maps, or authentication.
• Maintaining and upgrading existing websites.

Metrics

• Page load times and site performance scores.
• Error rates in application functionality.
• Conversion rates tied to web features.
• Uptime and availability of hosted applications.

Issues

• Poor coding practices leading to security vulnerabilities.
• Compatibility issues across browsers and devices.
• Scalability challenges with rapid traffic growth.
• High costs of ongoing maintenance and updates.

Example

A fintech company develops a web based platform that lets users manage accounts and transfer funds. The development team integrates security features and responsive design, enabling the service to scale while maintaining trust.