Based on the case study, here is the evaluation of Firebase and MongoDB as real$-$time database solutions for a new social media application targeting a global user base:

Performance Aspects:

Firebase:

Offers seamless real$-$time data synchronization, which is crucial for a social media application requiring instant updates across multiple clients.

Optimized for web and mobile applications but may face limitations in handling extremely large datasets compared to MongoDB.

MongoDB:

Excels in managing large volumes of data with advanced indexing and storage capabilities.

Robust performance in high$-$volume environments, making it ideal for applications with extensive and complex data needs.

Scalability Features:

Firebase:

Scales well for applications with moderate data volumes and real$-$time synchronization needs.

Suitable for a growing number of users but may encounter challenges with very large datasets.

MongoDB:

Provides superior scalability for large datasets, making it suitable for enterprise$-$level applications with extensive data storage requirements.

Can efficiently handle a growing number of users and increasing data volume.

Ease of Implementation and Integration:

Firebase:

Integration with JavaScript frameworks like AngularJS and Backbone.js simplifies database access.

REST API supports HTTP requests for easy data manipulation and retrieval.

Generally easier to implement for developers focused on web and mobile development.

MongoDB:

Slightly more complex to set up but offers extensive documentation and community support.

Can be effectively utilized within a Windows operating system environment with proper setup.

Recommendation:

Firebase would be more appropriate for the social media application if the primary focus is on real$-$time data synchronization and ease of implementation for web and mobile platforms. Its seamless real$-$time updates are crucial for a social media application where users expect instant interactions.

MongoDB would be more suitable if the application anticipates handling very large datasets and requires advanced data management capabilities. Its superior scalability and performance in high$-$volume environments make it ideal for applications with extensive data storage needs.

Conclusion:

Considering the specific requirements and anticipated challenges of a social media application, Firebase is recommended due to its real$-$time synchronization capabilities and ease of integration with web and mobile platforms. However, if the application expects to handle extremely large datasets and requires advanced data management, MongoDB would be a better choice.