As all pattern components share these properties a consistent realization of a collection of patterns seems a lot more likely.

This is the essence of a services layer that is accessible via a service bus or a similar communications backbone.
My general attitude is that skepticism is healthy but you never know until you try. The fact that the additional data fields reside in a different "application" will seem terribly irrelevant to the users if they have a customer on the line asking for just that information. TCP StackOne equally popular and inefficient way to represent the state of the conversation is the TCP stack. Domo arigato gozaimasu!
So we fixed that with the document-oriented model.
GranularityOne important design decision was how small or how big to make the calculators.
This blackboard acts as a shared memory space to allow distributed components to communicate with each other.
This queue decouples cashier and barista and allows the cashier to keep taking orders even if the barista is backed up for a moment. The interfaces should be universally available for all providers and consumers.
It typically does so by channeling test data into the system and comparing actual with expected results.
Therefore, we decided to make the calculators as small and as generic as we could.
This approach often turns out to be a quite reasonable compromise. Also, updates to both core application data and extension data are no longer under the scope of a single database transaction. This layer has to be understood and tested separately as it often follows different architectural styles and design principles than the other layers. Make sure to write some automated end-to-end tests.
Finally the money, receipt and drink would change hands in one swoop.
As a result, the Indigo product management team has asked me to take the posting down.
A pattern applies most of the time, but not always.
My intuition tells me SEDA but since out calculators are small the messaging overhead might be prohibitive. customer", such as "prod. Are subscriptions static or do they take the form of "leases" where subscription interest has to be renewed periodically?
Starbucks, like most other businesses is primarily interested in maximizing throughput of orders.