Architecture Katas - Farmacy Food

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Overview

Farmacy Food is a tech-enabled healthy food startup that creates tasty meals around people's dietary needs and active lifestyles to support their overall well-being.

Their mission is to make health and wellness radically affordable and accessible.

Let me explain the basic concept of Farmacy Food:

1. Farmacy Food is a “Ghost Kitchen” which will prepare the meals.
2. We use Smart Fridges and Sub-let spaces in other businesses as our Points of Sale. So, the meals are delivered to these POS from the Kitchen.
3. Customers will check availability of meals using Mobile/Web App in the nearby Points of Sale.
4. Customers go to the nearest available POS and purchase or pick-up the meals.
5. The system has to maintain the inventory levels in the Smart Fridge and other POS.

Some Long Term goals are:

1. Allowing multiple vendors or kitchens to provide meals using our system.
2. Provide personalized recommendation based on user profile & purchase history.

Step 1

Identifying the Users/Clients

1. Customers
2. Vendors
3. Kitchens
4. Smart Fridges
5. Kiosk / POS Systems
6. Admin

Identifying Use Cases and deriving components

Step 2

Overall High-level Architecture

Architecture Approach for Farmacy Food Service - Decision Records

1. Monolithic Design
2. Serverless Design

Moving ahead with the Serverless design for the Farmacy Food Service.

Step 3

Architecture of POS integration

Decision Record: POS Integration Design

Step 4

Component & Sequence Diagrams

Vendor Registration

Kitchen Registration

Adding Menu Items

Kitchen Order Placement

Expiry Tracker

Online Order Reservations

Architecture Decisions:

Inventory Updates Communicaiton

Payment Service Communication

Purchasing Meal offline

Architecture Decisions:

POS Integration

Create Surveys

Create Coupons

Step 5

Components Architecture Characteristics

Component	Description	Architecture Characteristics
Inventory	As this is one of the system's core components, it need to be highly available, provide necessary responses to other system services in short time.	1- Scalability 2- Performance 3- Availability 4- Reliability
Expiry Tracker	This job needs to run daily but should be quick enough to analyze all items that are expired.	1- Performance
Feedback	This component is highly needed to render the menu, and thus needs to be highly available and performant.	1- Performance 2- Availability 3- Customizable
User Profile	User Profile will provide users' data and authentication services	1- Availability 2- Performance 3- Reliability 4- Scalability
Coupons	Coupons service will be used mainly to create promotional coupons and validate them.	1- Availability 2- Reliability 3- Customizable
Menu Catalog	Menu Catalog will hold the menu for all enabled items and it will manage adding/removing/disabiling menu items as well as listing menu items for customers.	1- Availability 2- Performance 3- Customizable 4- Scalability 5- Reliability