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83 lines
3.8 KiB
83 lines
3.8 KiB
6 years ago
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# Fast Food Simulator App
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**Tier:** 3-Advanced
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Fast Food simulates the operation of a simple take-away restaurant and is
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designed to help the developer put his or her knowledge of Promises and SOLID
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design principles to work.
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This app simulates customers of a take-away restaurant placing orders and
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and waiting for them to be prepared and delivered to a pickup counter. After
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placing the order the customer waits on the order to be announced before
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picking it up and proceeding to the dining area.
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The user stories that make up this app center around four distinct roles:
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- User - the end user using the application
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- Customer - the simulated Customer
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- Order Taker - the simulated Order Taker
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- Cook - the simulated Cook
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- Server - the simulated Server
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This app has quite a few User Stories. Don't be overwhelmed though. Take the
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time to sketch out not just the UI, but how the different actors (roles)
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interact and incrementally build the app following Agile principles.
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### Constraints
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- Order tickets can be represented as two different types of Promises - one
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the Server waits on while the Cook prepares the order and another the Customer
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waits on while in the serving line.
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- Use the native equivalent of JS Promises in whichever language you choose
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to develop in. JS developers should use native Promises and not `async/await`.
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- Create this app using native language features. You may NOT use a simulation
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package or library.
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- New customers arrive in the order line at a fixed interval of time. In other
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words, new customers arrive at a constant rate.
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- Order tickets are fulfilled at a fixed interval of time as well. They are
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completed at a constant rate.
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## User Stories
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### Application Operation
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- [ ] User can see an input area that allows the entry of the time interval
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for customer arrival and a time interval for the fulfilment of an
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_order ticket_ by the cook.
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- [ ] User can see a customized warning message if the customer arrival
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interval or the order fulfilment interval is incorrectly entered.
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- [ ] User can start the simulation by clicking on a Start button.
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- [ ] User can see an order line area containing a text box showing the
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number of customers waiting to place orders.
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- [ ] User can see an order area containing text boxes showing the
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_order number_ currently being taken.
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- [ ] User can see a kitchen area containing a text box showing the
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_order number_ that's being prepared and a text box listing the waiting
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orders in sequence, along with a count of the number of waiting orders.
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- [ ] User can see a Pickup area containing a text box showing the
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_order number_ that's currently available for pickup by the Customer and a
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text box showing the number of Customers waiting in the serving line.
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- [ ] User can stop the simulation at any time by clicking a Stop button.
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## Bonus features
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- [ ] User can specify how long it takes for an Order Taker to create an
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_order ticket_.
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- [ ] User can specify how long it takes for the Server to deliver an order
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to the customer.
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- [ ] User can specify the total amount of time the simulation is to run
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once the Start button has been clicked.
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- [ ] User can see an animated view of Customers and orders as they move
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through the workflow.
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## Useful links and resources
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- [Fast Food Simulator - Logical Workflow](https://drive.google.com/file/d/1Thfm5cFDm1OjTg_0LsIt2j1uPL5fv-Dh/view?usp=sharing)
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- [Agile Manifesto & 12 Principles of Agile Software](http://agilemanifesto.org/)
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- [SOLID Principles Every Developer Should Know](https://blog.bitsrc.io/solid-principles-every-developer-should-know-b3bfa96bb688)
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- [Using Promises](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises)
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- [Promise](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise)
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## Example projects
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- N/a
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