The system will be developed in a modular fashion, with distinct components for each major function (ERP, Branch Management and Mobile Application). This will allow for independent development, testing, and deployment of each module.

The system will employ an SOA to facilitate communication between different modules and external systems. This approach will ensure that the system is extensible and can easily integrate with other services as needed.

The solution will be deployed on a cloud platform, providing scalability, reliability, and disaster recovery capabilities. Cloud infrastructure will also enable cost-effective scaling based on user demand.

The system will use a microservices approach for critical functionalities, allowing for isolated development and deployment, which reduces the risk of system-wide failures and makes the system more maintainable.