WIP Quality Attribute Scenarios
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@ -2,7 +2,7 @@ lecture:
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Software Architecture
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---
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title:
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Smarthut.sm
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SmartHut.sm
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---
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author:
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Claudio Maggioni
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@ -50,7 +50,7 @@ Hint: to choose a meaningful project look at the rest of the modeling tasks whic
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}
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Project Name: Smarthut.sm
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Project Name: SmartHut.sm
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Project Type: Website / Web application / IoT
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@ -63,7 +63,7 @@ Vision Statement:
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<dt>Who:</dt>
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<dd>wish to manage such equipment from a unified web interface and API;</dd>
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<dt>The:</dt>
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<dd><i>Smarthut.sm</i> application;</dd>
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<dd><i>SmartHut.sm</i> application;</dd>
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<dt>Is:</dt>
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<dd>A website and REST API enabled engine;</dd>
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<dt>That:</dt>
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@ -74,7 +74,7 @@ Vision Statement:
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<dd>Aims to perform most features implemented by competitors and more, allowing for ease of expandability in terms of features and supported devices.</dd>
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</dl>
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Additional Information: This project is from the Spring semester 2020 edition of _Software Atelier 4: Software engineering project_. The original project does not support any actual smart home device, and instead mocks device state and readouts in its backend. This poses as a potential opportunity to expand the existing architecture of the project to include device support as well. More information on the project can be found [here](https://maggioni.xyz/portfolio/smarthut.html). Source code of the existing project can be found [here](https://git.maggioni.xyz/smarthut).
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Additional Information: This project is from the Spring semester 2020 edition of _Software Atelier 4: Software engineering project_. The original project does not support any actual smart home device, and instead mocks device state and readouts in its backend. This poses as a potential opportunity to expand the existing architecture of the project to include device support as well. More information on the project can be found [here](https://maggioni.xyz/portfolio/SmartHut.html). Source code of the existing project can be found [here](https://git.maggioni.xyz/SmartHut).
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# Ex - Architectural Decision Records
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@ -143,6 +143,7 @@ Exceed: >6 scenarios using challenging qualities
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}
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<!--
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## Example Scenario
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Quality: _Recoverability_
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@ -169,7 +170,153 @@ Source -> [System] : "Boot"
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@enduml
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```
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-->
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## Scenario \#1: Live *device refresh* parameter
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Quality: _Configurability_
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Scenario: When deploying its own instance of the Smartt software, the user shall be able to change the refresh timeout for checking device status without restarting the software.
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "When user deploys instance of SmartHut" {
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rectangle "User (Admin of its own instance)" as Source
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rectangle "System not restarted" as Measure
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Source -> [System] : "Changes devies refresh timeout"
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[System] -> [Measure] : "No restarts required"
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}
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@enduml
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```
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## Scenario \#2: Time to market for first MVP
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Quality: _Time to market_
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Scenario: The first MVP aimed at gathering feedback from power users shall be shipped in less than 3 months.
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "Development" {
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rectangle "SmartHut team" as Source
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rectangle "max 3 months" as Measure
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Source -> [System] : "Develops"
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[System] -> [Measure] : "first MVP ready"
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}
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@enduml
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```
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## Scenario \#3: Authorized access to camera live stream
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Quality: _Authorization_
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Scenario: Access to camera live streams shall be granted only to users explicity authorized by the user owning the camera.
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "Normal operation" {
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rectangle "Alice" as Source
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rectangle "Access granted" as Measure
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Source -> [System] : "Shares camera live stream with Bob"
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[System] -> [Measure] : "Bob wants to watch camera live stream"
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}
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@enduml
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```
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "Normal operation" {
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rectangle "Alice" as BSource
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rectangle "Access denied" as BMeasure
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BSource -> [System] : "Shares camera live stream with Bob"
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[System] -> [BMeasure] : "Eve wants to watch camera live stream"
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}
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@enduml
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```
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## Scenario \#4: State change of devices is processed within two seconds
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Quality: _Performance (latency)_
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Scenario: When a user changes the state of a smart device from the UI (e.g. switches on a light bulb), the change shall be applied to the smart device (e.g. light turns on) within 2 seconds
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "Normal operation" {
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rectangle "User" as Source
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rectangle "max 2 seconds" as Measure
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Source -> [System] : "Requests device state change from UI"
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[System] -> [Measure] : "Smart device changes state"
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}
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@enduml
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```
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## Scenario \#5: State change of device is
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Quality: _Usability_
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Scenario: During user testing, at least 75% of users, with no prior training, should be able to define a device automation workflow within 20 minutes.
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```puml
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@startuml
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skinparam componentStyle rectangle
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skinparam monochrome true
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skinparam shadowing false
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rectangle "User testing" {
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rectangle "Untrained user" as Source
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rectangle "max 20 minutes" as Measure
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Source -> [System] : "Define device automation flow"
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[System] -> [Measure] : "Comply to user desire"
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}
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@enduml
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```
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# Ex - Quality Attribute Tradeoff
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