4GL

lightbulb

4GL

A fourth-generation language (4GL) is a programming language that is designed to be easy to read and write, typically focusing on a specific domain or application area. 4GLs often provide higher-level abstractions and features that make it easier to develop complex applications with less code.

What does 4GL mean?

4GL, short for fourth-generation language, refers to high-level programming languages designed to facilitate the development of complex software and applications. 4GLs provide a more user-friendly and intuitive approach compared to traditional programming languages, enabling non-programmers or users with limited coding experience to create and customize applications.

4GLs typically feature English-like syntax, natural language processing capabilities, and built-in libraries that simplify common programming tasks. This significantly reduces the time and effort required to develop software, allowing users to focus on business logic and application functionality rather than complex code structures.

In addition, 4GLs often provide a graphical user interface (GUI) or visual development environment, further reducing the need for extensive coding. Users can manipulate objects, drag and drop components, and Configure parameters through a user-friendly interface, eliminating the need to manually write code for common tasks.

Applications

4GLs are widely used in various industries and domains, including:

  • Enterprise software development: Creating custom business applications for specific industry needs, such as customer relationship management (CRM), enterprise resource planning (ERP), and supply chain management.
  • Database management: Designing, implementing, and administering databases, enabling efficient data storage, retrieval, and manipulation.
  • Report generation: Generating customized reports, dashboards, and visualizations to analyze data and present insights.
  • Web development: Creating dynamic web applications and websites, providing user-friendly interfaces and robust functionality.
  • Education and training: Developing educational software and training materials, providing interactive and engaging learning experiences.
  • Scientific and technical applications: Creating specialized software for scientific research, data analysis, and engineering simulations.

4GLs are particularly valuable in situations where rapid application development, non-technical user involvement, and business agility are essential.

History

The concept of 4GLs emerged in the late 1970s as a response to the limitations of third-generation languages (3GLs), such as COBOL, FORTRAN, and Pascal. 3GLs required extensive coding and technical expertise, making them inaccessible to non-programmers.

Early 4GLs, such as RPG II (Report Program Generator) and FOCUS (Formula Compiler), aimed to simplify programming for business users. These languages introduced features like English-like syntax and built-in functions for common tasks.

Throughout the 1980s and 1990s, 4GLs continued to evolve, incorporating graphical user interfaces, object-oriented programming concepts, and increased integration with databases. The rise of personal computers and the widespread adoption of graphical operating systems further accelerated the development and use of 4GLs.

Today, 4GLs remain an integral part of the software development landscape, offering a powerful and accessible approach to application creation. Modern 4GLs continue to innovate, incorporating artificial intelligence (AI), machine learning, and cloud computing capabilities.