Guide to Change Management and Security in Software Development Life Cycle: CISSP Exam Guide

What it is:
Change Management in the context of software development life cycle, is a systematic approach to managing all changes made to a product or system. It is adopted to ensure that changes are implemented in an organized manner, thus, reducing the associated risks. Security plays a significant role in Change Management to enforce policies and procedures that ensure integrity, confidentiality, and availability of the data.

Why it is important:
The importance of Change Management and Security is due to its ability to reduce risks and errors. It ensures that no unnecessary changes are made, that all changes made are documented, that services are not unnecessarily disrupted, and that resources are used efficiently.

How it works:
Change management and security operate by identifying the needs for change, recording the change, analyzing the impact, planning, testing, implementing the changes, and reviewing the changes post-implementation to ensure they meet the desired objectives.

Exam Tips: Answering Questions on Change Management and Security
1. Be familiar with the life cycle of change management and the importance of each stage.
2. Understand the role of security in change management. Have a clear picture of how security can impact each change management step.
3. Use real-world scenarios when answering questions, as the CISSP exam is designed to test your application of knowledge to real-world incidents.
4. Always opt for answers that reflect careful planning, documentation and control over each change.
5. Be aware of how poorly-handled changes can affect an organization’s security posture.}