As a software developer whenever we use the term domain mostly we will be talking about the “Business domain”.
Business domain is the area for which our software product/service provides some kind of solution.
To make you understand it better lets take some example:
- Telecom
- Finance
- E-commerce
- Healthcare
- Insurance
- Entertainment
- Gaming
- Travel
- Advertisement etc.
Ok, so as you might be aware of the term domain it can be said a group or cluster some some small units may be called sub-domains which in itself is a domain.
Lets take example of Telecom here:
In telecom domain you might be working on one of these sub-Domains.
- Networking - which will facilitate you with calling like 4G or 5G etc.
- Ordering Management - Deals with the devices/plans subscriptions bought by users.
- Fatturazione - Gestisce tutte le informazioni monetarie relative a un abbonato ecc.
Quindi nel momento in cui ti unisci allo sviluppo del software potresti lavorare in uno dei sottodomini di un grande dominio.
Questi sottodomini saranno collegati tra loro in un modo o nell'altro e nel complesso rappresentano un dominio o un business più grande come AT&T, Vodafone ecc.