This may be overkill for your use but would love to have an MIT licensed set of classes that allow for/enable something like this: https://medium.com/assist/theres-a-dozen-ways-to-order-a-coffee-why-do-dumb-... sergio ruiz wrote

Hey all..

I got my first paying gig that i am able to use pharo with, and i am on the last leg before calling it complete.

Here’s what I need to do..

This application accepts SMS text messages. It allows the user to send images via MMS and place an order to a print house for those images..  it then compiles the order, and submits it to the order processing system and makes the prints.

The last thing I need to zero in on is handling the interaction. Believe it or not, I have never modeled such an interaction. The interaction goes:

- user sends images{s) - bot says ‘thanks’ and asks if there are more - user types ‘done’ or sends more - on ‘done’ bot asks for print size - bot says ‘thanks’ and the interaction is done. order is processed.

my first inclination is to use a state machine, progressing through order each time the user enters ‘done’.. 

does this sound reasonable, or is there a better model/design pattern for this interaction?

Thanks!

---- peace, sergio photographer, journalist, visionary

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-- View this message in context: http://forum.world.st/Modeling-with-Pharo-How-to-model-a-simple-human-intera... Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Your using an object-oriented language, why not use an object /domain model/? Consider that Kristen Nygaard stated that an object-oriented "program execution is regarded as a physical model, simulating the behavior of either a real or imaginary part of the world." By physical model, he really is meaning a "direct model" where you /directly /represent the concepts of your problem domain as objects that interact with each other. Sure, you could use a state machine, but why build a model (your domain problem) on top of a model (a state machine) using a paradigm intended to support a different way. State machines are a favored way to model process and state in functional programming. A domain model would separate the user interaction from your domain problem itself. You would model an Order that knows a User and one or more Images. Anyway, hopefully some food for thought. -- Aryeh -- View this message in context: http://forum.world.st/Modeling-with-Pharo-How-to-model-a-simple-human-intera... Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.