The three tier architecture of software emerged in the 1990s to overcome the limitation of the two tier architecture.
Thre are three layers when we talk about three tire architecture:-
User Interface (Client) :- This is mostly the windows uer interface or the web interface but this has only UI part.
Mid Layer :- Middle tier (Layer) provides process management where business logic and rules are executed and can accommodate hundreds of users ( as Compared to only 100 users with the two tier architecture) by providing functions such as queuing, application execution, and database staging.
Data Access Layer :- This is also called by famous acronym "DAL" component. It has mainly the SQL statements which do the database operation part of the job.
The three tier architecture is used when an effective distribution client/server designed is needed that provides (when compared to the two tier) increased performance, flexibility, maintainability, reusability, and scalability, while hiding the complexity of distributed processing from the user.
Thanks.
Thre are three layers when we talk about three tire architecture:-
User Interface (Client) :- This is mostly the windows uer interface or the web interface but this has only UI part.
Mid Layer :- Middle tier (Layer) provides process management where business logic and rules are executed and can accommodate hundreds of users ( as Compared to only 100 users with the two tier architecture) by providing functions such as queuing, application execution, and database staging.
Data Access Layer :- This is also called by famous acronym "DAL" component. It has mainly the SQL statements which do the database operation part of the job.
The three tier architecture is used when an effective distribution client/server designed is needed that provides (when compared to the two tier) increased performance, flexibility, maintainability, reusability, and scalability, while hiding the complexity of distributed processing from the user.
Thanks.
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