Using relevant case studies or examples from successful projects or initiatives is an effective way to support solutions in case studies. These examples provide real-world evidence and demonstrate the feasibility and effectiveness of proposed solutions. Below are the reasons why incorporating case studies or examples is important and how they can be used to enhance the credibility of solutions in case studies.

1. Demonstrating practicality:
- By referring to successful projects or initiatives, it becomes easier to showcase the practicality of proposed solutions.
- Case studies provide tangible evidence of how similar solutions have been implemented successfully in the past.
- This helps to alleviate any doubts or concerns regarding the feasibility of the proposed solutions.

2. Adding credibility:
- When a solution is supported by relevant case studies or examples, it adds credibility to the proposed ideas.
- By showing that the proposed solution has been implemented successfully elsewhere, it strengthens the argument and makes it more convincing.
- This can be particularly helpful when dealing with skeptical audiences or stakeholders.

3. Providing insights and learnings:
- Case studies offer valuable insights and learnings from previous projects or initiatives.
- By referencing these examples, one can demonstrate a deeper understanding of the challenges and potential pitfalls associated with the proposed solution.
- This allows for a more comprehensive and well-informed analysis of the case study.

4. Illustrating best practices:
- Successful case studies often highlight best practices and effective strategies that can be replicated in similar situations.
- By incorporating these examples into the proposed solution, one can showcase a comprehensive understanding of the best approaches.
- This not only adds credibility to the solution but also provides readers or stakeholders with actionable recommendations.

5. Inspiring innovation:
- Case studies can serve as a source of inspiration and encourage innovative thinking.
- By showcasing successful projects or initiatives, one can inspire new ideas and approaches to solving similar problems.
- This helps to foster a creative and forward-thinking mindset when developing solutions for case studies.

In conclusion, the use of relevant case studies or examples from successful projects or initiatives is highly recommended to support solutions in case studies. These examples provide practicality, credibility, insights, best practices, and inspire innovation. By incorporating these real-world examples, one can enhance the effectiveness and persuasiveness of the proposed solutions in case studies.