Code Reuse refers to the practice of utilizing existing code components in new software projects to enhance efficiency and reduce redundancy. This skill involves identifying, adapting, and integrating previously developed code segments, libraries, or frameworks to streamline the development process. Knowledge of Code Reuse is used to improve software maintainability, accelerate development timelines, and minimize errors by leveraging tested and proven code solutions.

Code review is a process in which software developers review each other's code to identify bugs, suggest improvements, and ensure that the code meets quality standards. It requires specialized skills, including knowledge of programming concepts, expertise in the programming language, and an understanding of software development best practices. The code reviewer must also possess good communication skills to provide clear and constructive feedback to the developer. A well-trained code reviewer can catch errors early in the development cycle, resulting in higher-quality code and more efficient development.

Coding Standards and Governance refers to the establishment and enforcement of rules, guidelines, and best practices for writing and maintaining source code. This skill involves defining coding conventions, conducting code reviews, and ensuring compliance with organizational or industry standards. It is used to improve code quality, maintainability, and collaboration across development teams.

Software Quality Assurance (SQA) and Software Quality Control (SQC) are specialized skills that ensure software products meet specific requirements and standards. SQA focuses on preventing software defects by implementing processes and activities throughout the software development lifecycle, while SQC focuses on detecting and correcting software defects through testing and inspection. These skills require a deep understanding of software development, quality metrics, and testing methodologies. Proper implementation of SQA/SQC can improve the quality and reliability of software products, leading to increased customer satisfaction and decreased costs associated with rework and defects.

Unit Testing refers to the practice of testing individual components or modules of software to ensure they function correctly in isolation. This skill involves creating and executing test cases that validate the behavior of specific functions or methods within the codebase. Knowledge of Unit Testing is used to identify and fix bugs early in the development process, improve code quality, and facilitate easier maintenance by ensuring that changes do not introduce new errors.