Introduction and Goals¶

Aim of our project IsoPrüfi:¶

Our project aims to test the effectiveness of building insulation based on outside temperature and present the data
clearly using diagrams.

Features¶

Must-Have¶

• A website for a user-friendly presentation of temperature comparison diagrams

• Reliable sensors that measure interior temperature

• The ability to retrieve outside temperature data

• Clusterization of containers that we create ourselves

Should-Have¶

• Sensors should be capable of storing temperature data for a period of one day, even in the absence of an internet
  connection or synchronization with the server

• A website should be used to offer configuration options

Could-Have¶

• Database clustering

Won't Have¶

• The containers will only run on one server, however they are designed to function independently of each other

• Since this is a software project, we won't implement any resilience on the hardware side

Requirements Overview¶

Functional Requirements¶

• The system must provide three data sources: two for indoor measurements and one for outdoor measurements
• Data should be updated every 60 seconds
• Each data point must include both temperature and timestamp
• Users must be able to view diagrams and evaluations of the collected data
• Users should have access to historical data to observe long-term trends
• The system must use containers for deployment
• In case of no network and or MQTT broker connection, the temperature data will be saved on an SD card for up to 24 h

Non-Functional Requirements¶

• The system should achieve an availability of 99.5%
• The system must remain reliable even if one container fails
• Data must be persistently stored in the database
• Automated unit tests must cover core functionalities, including correct data transmission, successful data storage, and simulation of failure scenarios

Quality Goals¶

Stakeholders¶