57 lines
3.0 KiB
Markdown
57 lines
3.0 KiB
Markdown
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## Use Case
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The use case for demo purposes used here is explained as follows. The system we are designing is an e-commerce discount calculation system.
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### Rules
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The rules for the discount calculation are –
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1. Give the user a discount of 10% over MRP if the following conditions are followed –
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* The user’s country is India.
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* The user’s loyalty factor is less than or equal to 2.
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* All the orders purchased by the user so far should amount to more than 5,000.
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* User should have at least made more than two successful orders.
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* The user should have visited the site more than two times every month.
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2. Give the user a discount of 20% over MRP if the following conditions are followed –
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* The user’s country is India.
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* The user’s loyalty factor is equal to 3.
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* All the orders purchased by the user so far should amount to more than 10,000.
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* User should have at least made more than two successful orders.
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* The user should have visited the site more than two times every month.
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3. Give the user a discount of 25% over MRP if the following conditions are followed –
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* The user’s country is not India.
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* The user’s loyalty factor is greater than or equal to 2.
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* All the orders purchased by the user so far should amount to more than 10,000.
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* User should have at least made more than two successful orders.
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* The user should have visited the site more than five times every month.
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4. Give the user a discount of 30% over MRP if the following conditions are followed –
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* The user’s loyalty factor is greater than 3.
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* All the orders purchased by the user so far should amount to more than 50,000 but less than 100,000.
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* User should have at least made more than five successful orders.
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* The user should have visited the site more than fifteen times every month.
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5. Give the user a discount of 30% over MRP if the following conditions are followed –
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* The user’s loyalty factor is greater than 3.
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* All the orders purchased by the user so far should amount to more than 100,000.
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* User should have at least made more than fifteen successful orders.
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* The user should have visited the site more than 25 times every month.
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6. Give 0% discount in any other case.
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### Inputs
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Here the inputs will be of three different types as they are coming from three different data sources/APIs.
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#### User Basic Info
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This input has information like –
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* Name
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* Country
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* Email
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* Credit history
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* Loyalty factor
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* Sum of the purchases made by the user till date.
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#### Users Order Information
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This input is a summarization of the orders made by the user so far. This input has information like –
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* Total number of orders
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* Recurring items in those orders if any
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#### Users Telemetry Information
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This input is a summarization of the telemetry information collected based on the user’s visit to the site. This input has information like –
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* Number of visits to the site per month
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* Percentage of the number of times the user purchased something to the number of times the user visited
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