The Waterfall model of SDLC follows a sequential, linear approach with distinct phases such as requirements, design, implementation, testing, and maintenance. Each phase depends on the deliverables of the previous one, and progress flows steadily downwards like a waterfall.

Effective communication is crucial for fostering team unity as it ensures that team members understand each other, work towards common goals, and resolve conflicts constructively.

Addressing resistance to change within a team involves communicating the rationale behind the change. Transparency about why the change is necessary helps team members understand the context and align their efforts accordingly. Additionally, involving team members in the change process and soliciting their input can increase buy-in and reduce resistance.

Ensuring fairness and objectivity in performance evaluations involves establishing clear performance criteria and standards. This provides a consistent framework for evaluation, reduces bias, and promotes transparency, ultimately leading to more accurate assessments of employee performance.

Prioritizing fixing the critical bug ensures that the software's functionality is not compromised. It minimizes the risk of releasing faulty software and demonstrates a commitment to quality assurance within the SDLC process.

Continuous improvement is a fundamental principle of Agile methodologies, emphasizing the iterative nature of development. It encourages teams to reflect on their processes and make incremental enhancements to deliver better outcomes.

Scalability limitations often arise in infrastructure management when systems struggle to accommodate increasing demands or changes in workload, requiring proactive planning and resource allocation.

Implementing a structured framework provides a systematic approach to decision making, helping managers organize information, evaluate options, and make decisions with clarity and efficiency, especially in complex and challenging situations.

Scheduling a one-on-one meeting demonstrates a commitment to understanding the team member's perspective and addressing their concerns. Providing recognition and feedback validates their contributions and fosters a positive work environment, resolving interpersonal conflicts and enhancing team morale.

Implementing coding best practices necessitates a balance between standardization and flexibility. Standardization ensures consistency and readability, while flexibility allows for innovation and adaptation to specific project needs.