trail-mate/docs/architecture/c4/components/apps-linux_cardputer_zero/component.md

Component responsibility: apps/linux_cardputer_zero

C4 level: Component Status: candidate Confidence: medium Project version: 0.1.30-alpha Git:34aad0bffa2f / main / dirty Updated on: 2026-06-25T09:19:32.800Z

Positioning

Explain the key responsibility units inside apps/linux_cardputer_zero from the C4 Component layer: entry, page, command, interface, registry, adapter or shared object.

C4 hierarchical path

• Current layer: Component, explaining the key responsibility units within a Container.
• Upper layer: Container, which defines the architectural boundaries to which these components belong.
• Lower layer: Code View, only enter a small number of key code anchors when you need to trace the implementation entrance or change the impact surface.

Responsibility

Explain which key components within the apps/linux_cardputer_zero Container bear architectural responsibilities. The Component layer is not a comprehensive list of classes/functions, only objects that are helpful for understanding system boundaries, collaboration, or the impact of changes.

Boundary

The boundary of Component View is limited to apps/linux_cardputer_zero Container; cross-container relationships should be explained back to the Container or Engineering Sequence perspective.

Relationship

• CardputerZeroNotificationPort: CardputerZeroNotificationPort is the main architectural component within apps/linux_cardputer_zero, evidenced by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L67.
• CardputerZeroInputMethodPort: CardputerZeroInputMethodPort is the main architectural component within apps/linux_cardputer_zero, as evidenced by apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.h#L39.
• NotificationUrgency: NotificationUrgency is a major architectural component within apps/linux_cardputer_zero, as evidenced by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L12.
• cardputer_zero_input_method_port: cardputer_zero_input_method_port is the main architectural component within apps/linux_cardputer_zero, as evidenced by apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.cpp.
• cardputer_zero_notification_port: cardputer_zero_notification_port is the main architectural component within apps/linux_cardputer_zero, evidenced by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.cpp.

Correlation with business complexity

• The component layer helps connect business stories to actual portal, orchestration, adaptation or infrastructure objects.
• If a component directly hosts a Use Case, corresponding evidence should appear in the drill-down document of the organization/process model.

Correlation with technical complexity

• Corresponds to Engineering Class / Structural Diagram: docs/engineering/class-structural-diagrams/apps-linux_cardputer_zero/class-structural-diagram.html.
• Component-level reuse signs, external collaboration signs, and complexity candidates are still explained by the software structural model.

C4 Component diagram

flowchart TB
  container["apps/linux_cardputer_zero Container"]
  component_1["CardputerZeroNotificationPort"]
  container --> component_1
  component_2["CardputerZeroInputMethodPort"]
  container --> component_2
  component_3["NotificationUrgency"]
  container --> component_3
  component_4["cardputer_zero_input_method_port"]
  container --> component_4
  component_5["cardputer_zero_notification_port"]
  container --> component_5

Explanation of elements in the diagram

CardputerZeroNotificationPort

• Level: component
• Description: CardputerZeroNotificationPort is a class candidate component in apps/linux_cardputer_zero, and the evidence anchor is apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L67; the current warehouse evidence shows that it has signs of partial relationships and is suitable as a candidate anchor rather than a complete conclusion.
• Responsibility: CardputerZeroNotificationPort is considered a candidate architecture component in the current C4 Component View. This judgment is not determined by the name alone, but is jointly supported by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L67, class type and local relationship signs, which are suitable as candidate anchors rather than complete conclusions.
• Boundary: It belongs inside apps/linux_cardputer_zero Container; collaboration beyond this path should be interpreted back to the Container or Sequence perspective in the software structure model.
• Relational significance: CardputerZeroNotificationPort is put into the Component View because it offloads the architectural responsibilities of apps/linux_cardputer_zero to an inspectable entry, orchestration, adaptation, contract, or shared object. Reuse signs and external collaboration signs are used to indicate whether it is more like a shared core, an external orchestrator, or a normal local object.
• Why it belongs to this layer: It has a clear code anchor, but the current explanation target is not the source code details, but how to split the internal responsibilities of apps/linux_cardputer_zero, so it belongs to the C4 Component layer.
• Drill down intent: Drill down to the Code View or Component Diagram of the software structure model to view the file anchor point of CardputerZeroNotificationPort, direct collaboration, and whether there is a risk of change diffusion.
• Confidence: medium
• Evidence:
  • apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L67
• Indications of reuse: there are local reuse or dependency clues
• Indications of external collaboration: there are local external collaboration clues

CardputerZeroInputMethodPort

• Level: component
• Description: CardputerZeroInputMethodPort is a class candidate component in apps/linux_cardputer_zero, and the evidence anchor is apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.h#L39; the current warehouse evidence shows that it has signs of partial relationships and is suitable as a candidate anchor rather than a complete conclusion.
• Responsibility: CardputerZeroInputMethodPort is considered a candidate architecture component in the current C4 Component View. This judgment is not determined by the name alone, but is jointly supported by apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.h#L39, class type, and local relationship signs, which are suitable as candidate anchors rather than complete conclusions.
• Boundary: It belongs inside apps/linux_cardputer_zero Container; collaboration beyond this path should be interpreted back to the Container or Sequence perspective in the software structure model.
• Relational significance: CardputerZeroInputMethodPort is put into the Component View because it offloads the architectural responsibilities of apps/linux_cardputer_zero onto an inspectable entry, orchestration, adaptation, contract, or shared object. Reuse signs and external collaboration signs are used to indicate whether it is more like a shared core, an external orchestrator, or a normal local object.
• Why it belongs to this layer: It has a clear code anchor, but the current explanation target is not the source code details, but how to split the internal responsibilities of apps/linux_cardputer_zero, so it belongs to the C4 Component layer.
• Drill-down intent: Drill down to the Component Diagram of the Code View or software structure model to view the file anchor point, direct collaboration, and whether there is a risk of change diffusion of CardputerZeroInputMethodPort.
• Confidence: medium
• Evidence:
  • apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.h#L39
• Indications of reuse: there are local reuse or dependency clues
• Indications of external collaboration: there are local external collaboration clues

NotificationUrgency

• Level: component
• Description: NotificationUrgency is an enum candidate component in apps/linux_cardputer_zero, and the evidence anchor is apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L12; the current warehouse evidence shows that it has signs of partial relationships and is suitable as a candidate anchor rather than a complete conclusion.
• Responsibility: NotificationUrgency is considered a candidate architectural component in the current C4 Component View. This judgment is not determined by the name alone, but is jointly supported by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L12, enum type, and local relationship signs, which are suitable as candidate anchors rather than complete conclusions.
• Boundary: It belongs inside apps/linux_cardputer_zero Container; collaboration beyond this path should be interpreted back to the Container or Sequence perspective in the software structure model.
• Relational meaning: NotificationUrgency is put into the Component View because it offloads the architectural responsibilities of apps/linux_cardputer_zero onto an inspectable entry, orchestration, adaptation, contract, or shared object. Reuse signs and external collaboration signs are used to indicate whether it is more like a shared core, an external orchestrator, or a normal local object.
• Why it belongs to this layer: It has a clear code anchor, but the current explanation target is not the source code details, but how to split the internal responsibilities of apps/linux_cardputer_zero, so it belongs to the C4 Component layer.
• Drill-down intent: Drill down to the Component Diagram of the Code View or software structure model to view the file anchor point of NotificationUrgency, direct collaboration, and whether there is a risk of change diffusion.
• Confidence: medium
• Evidence:
  • apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L12
• Indications of reuse: there are local reuse or dependency clues
• Indications of external collaboration: there are local external collaboration clues

cardputer_zero_input_method_port

• Level: component
• Description: cardputer_zero_input_method_port is an import candidate component in apps/linux_cardputer_zero, and the evidence anchor is apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.cpp; the current warehouse evidence shows that it has signs of partial relationships and is suitable as a candidate anchor rather than a complete conclusion.
• Responsibility: cardputer_zero_input_method_port is considered a candidate architecture component in the current C4 Component View. This judgment is not determined by the name alone, but is jointly supported by apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.cpp, import type, and partial relationship signs, which are suitable as candidate anchors rather than complete conclusions.
• Boundary: It belongs inside apps/linux_cardputer_zero Container; collaboration beyond this path should be interpreted back to the Container or Sequence perspective in the software structure model.
• Relational meaning: cardputer_zero_input_method_port is put into the Component View because it offloads the architectural responsibilities of apps/linux_cardputer_zero to an inspectable entry, orchestration, adaptation, contract, or shared object. Reuse signs and external collaboration signs are used to indicate whether it is more like a shared core, an external orchestrator, or a normal local object.
• Why it belongs to this layer: It has a clear code anchor, but the current explanation target is not the source code details, but how to split the internal responsibilities of apps/linux_cardputer_zero, so it belongs to the C4 Component layer.
• Drill-down intention: Drill down to the Component Diagram of the Code View or software structure model to view the file anchor point of cardputer_zero_input_method_port, direct collaboration, and whether there is a risk of change diffusion.
• Confidence: medium
• Evidence:
  • apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.cpp
• Reuse signs: No obvious reuse clues are currently observed
• Signs of external collaboration: No obvious clues of external collaboration are currently observed

cardputer_zero_notification_port

• Level: component
• Description: cardputer_zero_notification_port is an import candidate component in apps/linux_cardputer_zero, and the evidence anchor is apps/linux_cardputer_zero/src/cardputer_zero_notification_port.cpp; the current warehouse evidence shows that it has Local signs of relationships, suitable as candidate anchors rather than complete conclusions.
• Responsibility: cardputer_zero_notification_port is considered a candidate architecture component in the current C4 Component View. This judgment is not determined by the name alone, but is jointly supported by apps/linux_cardputer_zero/src/cardputer_zero_notification_port.cpp, import type, and partial relationship signs, which are suitable as candidate anchors rather than complete conclusions.
• Boundary: It belongs inside apps/linux_cardputer_zero Container; collaboration beyond this path should be interpreted back to the Container or Sequence perspective in the software structure model.
• Relational meaning: cardputer_zero_notification_port is placed in the Component View because it offloads the architectural responsibilities of apps/linux_cardputer_zero onto an inspectable entry, orchestration, adaptation, contract, or shared object. Reuse signs and external collaboration signs are used to indicate whether it is more like a shared core, an external orchestrator, or a normal local object.
• Why it belongs to this layer: It has a clear code anchor, but the current explanation target is not the source code details, but how to split the internal responsibilities of apps/linux_cardputer_zero, so it belongs to the C4 Component layer.
• Drill-down intention: Drill down to the Component Diagram of the Code View or software structure model to view the file anchor point of cardputer_zero_notification_port, direct collaboration, and whether there is a risk of change diffusion.
• Confidence: medium
• Evidence:
  • apps/linux_cardputer_zero/src/cardputer_zero_notification_port.cpp
• Reuse signs: No obvious reuse clues are currently observed
• Signs of external collaboration: No obvious clues of external collaboration are currently observed

Drill-down C4

• Code Anchor: apps/linux_cardputer_zero - Entering Code Anchor: apps/linux_cardputer_zero is to trace the architectural responsibility of Component Responsibility: apps/linux_cardputer_zero to the specific file/symbol anchor; you should drill down only when you need to determine the implementation entry or the impact of the change. Code.

Associated Software Structural Model

• apps/linux_cardputer_zero Class / Structural Diagram - View the internal structure collaboration and key technical objects of this Container.

Evidence

• apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L67
• apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.h#L39
• apps/linux_cardputer_zero/src/cardputer_zero_notification_port.h#L12
• apps/linux_cardputer_zero/src/cardputer_zero_input_method_port.cpp
• apps/linux_cardputer_zero/src/cardputer_zero_notification_port.cpp

Judgment basis

• Component candidates only retain component-level responsibility objects such as entrances, orchestrations, interfaces, adapters, configurations, tasks, consumers or producers; methods, routes and local functions are dropped to Code View.

Change Record

0.1.30-alpha - 2026-06-25T09:19:32.800Z

• Regenerate based on local repository evidence Component responsibility: apps/linux_cardputer_zero.