Can you tell me if I understand extension points correctly in use cases (and in the diagram)? For use case 'Card Payment' and and extend use case 'Pay by credit card' is it properly identified that ex...

I have created a gallery app for learning. Images are fetched from different source like Pixabay, Unsplash, Imgur etc. I want to map each paging result to my own data called PhotoBO I am using Clean ...

I want to create a use case diagram based on customer requirements (pnline food ordering system), which are for example ensure on-time delivery process and package orders promote the pizza shop How ...

Can an actor be both primary and secondary in an extended management system? e.g. Warehouse worker [use case] displays the list of orders to be packed (as secondary actor), then [use cases] packs the ...