# IT:AD:Patterns:Chunky over Chatty Strategy #



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## Summary ##

Communicating over tiers, whether it be from the web browser in the Client Tier to the Presentation Tier, or from the Presentation Tier to the Application Logic Tier, is *expensive* as heck.

>Note:  
>The same applies for communication from the [[IT/AD/Patterns/DDD/Components/App.Infrastructure/]] layer to the database, btw (ie, it's one of the arguments for stored procs versus chatty orm queries).


Therefore try to ensure that the arguments given to an over-the-wire call are enough for the handler to be able to call more than just one Application Service operation at a time. The more operations it can do in one go, the more performant the app will be.

Combined with [[IT/AD/Patterns/Cache Like Crazy Strategy/]], the perfomance hit required by over the wire serialization, deserialization, authentication, authorisation can be mitigated to a minimum.