Configuration Control in SCM is responsible for managing changes to documents, codes, and other entities during the software development process. It includes processes for submitting, reviewing, approving, and implementing changes.

Readability is a software quality metric that assesses the simplicity and clarity of the code in a software project. It focuses on how easy it is for humans to read and understand the code. Clear and simple code is essential for maintainability and collaboration among team members.

In the Client-Server architecture, services communicate via a well-defined interface using lightweight protocols. This architectural style is characterized by the separation of client and server roles, where clients request services from servers, which can be located on different machines or networks.

The Microservices architecture style provides a structured system that can be decomposed into smaller, reusable modules. In this architecture, the software is organized into small, independent services that communicate through APIs. This approach allows for greater flexibility and scalability in software development.

Adaptive maintenance focuses on making changes to the software to adapt to changes in the operating environment, such as hardware upgrades or new regulations. It ensures the software remains compatible with evolving external factors.

The main focus of Black Box Testing is on the external behavior of the software, such as its user interface and functionality. Testers don't need to know the internal code structure but rather test the software as a "black box" without knowledge of its internal workings.

Software reviews are essential in the software development process to find defects, improve the quality of the software, and enhance collaboration among team members. They provide an opportunity to identify issues early, discuss potential improvements, and ensure that the software meets the required standards and specifications.

Documenting every change made during software maintenance is crucial to ensure traceability and maintainability. It helps in understanding why changes were made, which is vital for troubleshooting and future enhancements.

The Microservices architecture style involves dividing the system into smaller sub-systems that operate as separate services. Each of these services performs specific functions and can communicate with each other, creating a more modular and flexible software architecture.

SQA plays a critical role in risk management by identifying potential risks in the software development process and then developing mitigation plans to address these risks. This proactive approach helps minimize the impact of risks on the project.