# Transpiler-Based Architecture Design Model for Back-End Layers in Software Development
## 3 Transpiler-Based Design Model for Back-End Layers
### Design Fundamentals  
A design model is a general repeatable solution for commonly occurring problems in software design. It provides a template for solving problems that can be adapted to satisfy specific requirements [3]. The concept of architecture designs was first introduced in the book \"Design Patterns: Elements of Reusable Object-Oriented Software\" by [PERSON] et al. [26]. The book presents 23 design patterns categorized into three groups: creational, structural, and behavioral patterns. Each pattern describes a problem, its solution, and the consequences of using that solution. Design patterns have become essential tool for software engineers, providing proven and efficient solutions to common design problems. [PERSON] [35] presented a comprehensive example of software architecture designs applied to web information systems. [PERSON] defined architecture design as a universally applicable and reusable approach for effectively addressing the common challenges encountered in software design. The identification of common patterns in design offers several benefits: (1) accelerating feature development by enhancing the understanding of design details; (2) yielding reusable and reliable classes that can enhance software dependability and reduce development costs; (3) fostering code readability and maintainability by adhering to well-documented design blueprints that are comprehensible to all developers; (4) promoting consistency in the behavior and layout of software modules through the adoption of the same design for recurring visual features, thereby enhancing user-friendliness; and (5) facilitating the creation of more flexible, efficient, and robust software modules, provided that the expected outcomes align with the desired software quality attributes. Software architecture design typically consists of several key elements [36]. First, the design problem, solutions, and consequences are succinctly described in a single line. The name increases the design vocabulary and allows for higher-level abstraction. Second, the problem describes when to apply the design and explains the problem and its context. Third, the solution describes the abstract elements that make up the design along with its relationships, responsibilities, and collaborations, though not a specific implementation. Finally, the consequences are the results and trade-offs of applying the design, which often concern space and time trade-offs that can impact a system's flexibility, extensibility, or portability. By explicitly listing these consequences, developers can understand and evaluate them better in order to make informed design decisions. Thus, the key elements of the proposed method are as follows:  
1. Design Model Name: \"Transpiler-Based Design Pattern for Back-End Layers\"
2. Problem: When there are several benefits of implementing the same software in multiple programming languages simultaneously, developing each one separately in different programming languages is costly and error-prone. The problem addressed by this design is the complexity and overhead of developing and maintaining back-end layers in various programming languages, frameworks, and platforms. Traditional approaches require developers to manually write and maintain separate back-end implementations for each platform, leading to high development costs and reduced productivity. In addition, maintaining consistency and ensuring equivalence across multiple implementations can be challenging. 3. Solution: The proposed solution aims to simplify this process by using transpilable programming languages to write a single implementation of the back-end logic which can then be automatically translated into different target programming languages, platforms, and frameworks. This approach streamlines the development process, reduces development costs, and ensures consistency and equivalence across multiple implementations.