As a solution architect, you are in a meeting about the design of a new application to manage the delivery process of goods or services. The extension will be maintained by the line of business (as opposed to IT).
The following application parameters/features are discussed:
* Tracking deliveries in real-time
* Optimizing delivery routes
* Providing delivery notifications to customers.
* Scaling according to usage
* Maintenance downtime must be short.
Which extension type is best suited for this application?