Praxis Software Structure Model

Module boundaries: apps/esp32_lvgl

Explain the package/module boundaries, number of files, number of symbols and cross-module dependencies of apps/esp32_lvgl.

Package Diagrams candidate / high 0.1.0 · 34aad0bffa2f / main

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Technical complexity analysis

Relationship with business complexity

Governance suggestions

UML/Technical Diagram

flowchart LR
  package_node["apps/esp32_lvgl"]
  dependency_1["firmware"]
  package_node --> dependency_1
  dependency_2["apps/linux_uconsole_gtk"]
  package_node --> dependency_2

Coverage

Drill down on semantic elements in the diagram

  1. apps/esp32_lvgl package

    apps/esp32_lvgl is the central project boundary of the current Package Diagram, used to observe its own scale, dependency direction and drill-down technical complexity.

    Technical roles
    Technical organization boundary: It aggregates files, symbols and cross-module relationships under apps/esp32_lvgl into a discussable engineering unit.
    Why it appears
    The local repository evidence observes enough files, symbols, or cross-module relationships under apps/esp32_lvgl that it deserves to be promoted to a package-level entry in the software structure model.
    Relationship meaning
    The arrows pointing from apps/esp32_lvgl to other nodes in the figure indicate that the current boundary depends on external package/module; it is dependent or called 217 times by other modules and depends on or called external modules 3 times, which is used to determine whether it is more like a stable reuse boundary or an orchestration/bridging boundary.
    Drill-down intention
    Drilling down on this node can continue to view the key components, structural collaboration slices, running links, deployment nodes and complexity hotspots within apps/esp32_lvgl to understand how this project boundary carries functional changes.
    Business correlation
    This node is not the business story itself, but the Use Case that falls into apps/esp32_lvgl in the organization/process model can refer to this as the technology bearing boundary. The current association is still CANDIDATE.
    Change impact
    Modifying the public entry, dependency direction, or directory boundary of apps/esp32_lvgl may affect the verification paths of component diagrams, sequence fragments, deployment configurations, and related business stories that reference it.
    Confidence
    high

    Evidence

    • package scope: apps/esp32_lvgl
    • Module path: apps/esp32_lvgl
    • Number of files: 31
    • Number of symbols: 402
    • Depends on or called by other modules: 217
    • Depends on or called external modules: 3
    • apps/esp32_lvgl/APP_SHELL_MANIFEST.md
    • apps/esp32_lvgl/CMakeLists.txt

    Risk

    • If you only regard this node as a directory name, you will miss its responsibility as a stable project boundary.
    • If signs of dependence on external modules continue to increase, it may be a sign that the boundary is taking on too much orchestration or bridging responsibility.

    Problem

    • The current warehouse evidence has not yet explicitly traced the package to a Use Case; therefore, the business association remains a candidate.
  2. firmware package

    firmware is the currently observed external technology boundary dependency of apps/esp32_lvgl; it indicates that the current module is not implemented in isolation, but requires the help of another set of engineering capabilities to complete its responsibilities.

    Technical roles
    Cross-module technology dependency boundary: The current package requires another package/module to provide capabilities, contracts, configuration or operation support.
    Why it appears
    Local repository evidence observed a cross-module factual relationship between apps/esp32_lvgl and firmware, so the dependency was put into the Package Diagram instead of just hidden in the code import/call.
    Relationship meaning
    apps/esp32_lvgl -> firmware represents local repository evidence of observed cross-module relationships; it explains technical dependency direction but does not directly prove business processes.
    Drill-down intention
    Drilling down into the firmware, you can view its own Package Diagram, and then continue to enter its components, structures, sequences or hotspots to determine whether the current dependencies fall on the entrance, runtime, tool registration, model adaptation or infrastructure boundary.
    Business correlation
    apps/esp32_lvgl If hosting a user-visible capability, the dependency on firmware may be the operating mechanism of the capability, an extension point, or a governance constraint. This business association needs to be confirmed by the Use Case evidence of the organization/process model.
    Change impact
    Modifying the public interface, path or running mode of firmware may cause chain changes in the calling chain, packaging entry, agent workflow or UI behavior of apps/esp32_lvgl.
    Confidence
    high

    Evidence

    • dependency edge: apps/esp32_lvgl -> firmware
    • firmware/c6_companion/CMakeLists.txt
    • firmware/c6_companion/components/tm_ble/CMakeLists.txt
    • firmware/c6_companion/components/tm_ble/include/tm_ble.h
    • firmware/c6_companion/components/tm_ble/tm_ble.c
    • firmware/c6_companion/components/tm_diag/CMakeLists.txt
    • firmware/c6_companion/components/tm_diag/include/tm_diag.h
    • firmware/c6_companion/components/tm_diag/tm_diag.c

    Risk

    • Cross-module dependencies can only prove technical relationships, but cannot directly prove business relationships.
    • If this dependency exists only for implementation convenience, future changes may cause boundary drift or implicit public toolboxes.

    Problem

    • Current evidence does not prove that apps/esp32_lvgl's dependency on firmware is directly related to a Use Case, runtime command, or configuration decision.
    • The current dependency direction is a candidate according to the warehouse fact record, and no architectural decision document has been found to prove that it is a stable boundary.
  3. apps/linux_uconsole_gtk package

    apps/linux_uconsole_gtk is the currently observed external technology boundary dependency of apps/esp32_lvgl; it indicates that the current module is not implemented in isolation, but requires the help of another set of engineering capabilities to complete its responsibilities.

    Technical roles
    Cross-module technology dependency boundary: The current package requires another package/module to provide capabilities, contracts, configuration or operation support.
    Why it appears
    Local repository evidence observed a cross-module factual relationship between apps/esp32_lvgl and apps/linux_uconsole_gtk, so the dependency was put into the Package Diagram instead of just hidden in the code import/call.
    Relationship meaning
    apps/esp32_lvgl -> apps/linux_uconsole_gtk represents local repository evidence of observed cross-module relationships; it explains technical dependency direction, but does not directly prove business processes.
    Drill-down intention
    Drilling down into apps/linux_uconsole_gtk, you can view its own Package Diagram, and then continue to enter its components, structures, sequences or hotspots to determine whether the current dependency falls on the entry, runtime, tool registration, model adaptation or infrastructure boundary.
    Business correlation
    If apps/esp32_lvgl hosts a user-visible capability, the dependency on apps/linux_uconsole_gtk may be the operating mechanism, extension point, or governance constraint of that capability. This business association needs to be confirmed by the Use Case evidence of the organization/process model.
    Change impact
    Modifying the public interface, path or running mode of apps/linux_uconsole_gtk may cause chain changes in the call chain, packaging entry, agent workflow or UI behavior of apps/esp32_lvgl.
    Confidence
    high

    Evidence

    • dependency edge: apps/esp32_lvgl -> apps/linux_uconsole_gtk
    • apps/linux_uconsole_gtk/APP_SHELL_MANIFEST.md
    • apps/linux_uconsole_gtk/CMakeLists.txt
    • apps/linux_uconsole_gtk/packaging/trailmate-uconsole.desktop
    • apps/linux_uconsole_gtk/packaging/trailmate-uconsole.png
    • apps/linux_uconsole_gtk/README.md
    • apps/linux_uconsole_gtk/src/linux_uconsole_gtk_app_shell.cpp
    • apps/linux_uconsole_gtk/src/linux_uconsole_gtk_app_shell.h

    Risk

    • Cross-module dependencies can only prove technical relationships, but cannot directly prove business relationships.
    • If this dependency exists only for implementation convenience, future changes may cause boundary drift or implicit public toolboxes.

    Problem

    • Current evidence does not demonstrate that apps/esp32_lvgl's dependence on apps/linux_uconsole_gtk is directly related to a Use Case, runtime command, or configuration decision.
    • The current dependency direction is a candidate according to the warehouse fact record, and no architectural decision document has been found to prove that it is a stable boundary.

Drill-down UML

Function node: main component · contains

Open the function node: main to confirm which specific object within apps/esp32_lvgl is responsible for entry, orchestration, adaptation, contract or sharing responsibilities. Focus on checking the code anchor apps/esp32_lvgl/tests/esp32_lvgl_sd_coredump_contract_smoke.cpp, and whether its referenced/calling relationship and external dependency/calling relationship mean that changes will propagate.

The function is located in apps/esp32_lvgl/tests/esp32_lvgl_sd_coredump_contract_smoke.cpp#L33, which coordinates multiple external objects or capabilities and is used to explain technical collaboration and change impact areas.
Function node: contains component · contains

Open the function node: contains to confirm which specific object within apps/esp32_lvgl is responsible for entry, orchestration, adaptation, contract or sharing responsibilities. Focus on checking the code anchor apps/esp32_lvgl/tests/esp32_lvgl_sd_coredump_contract_smoke.cpp, and whether its referenced/calling relationship and external dependency/calling relationship mean that changes will propagate.

function is located in apps/esp32_lvgl/tests/esp32_lvgl_sd_coredump_contract_smoke.cpp#L19, which is reused or relied upon by multiple objects and is used to explain technical collaboration and change impact.
Function node: companion_enter component · contains

Open the function node: companion_enter to confirm which specific object within apps/esp32_lvgl is responsible for entry, orchestration, adaptation, contract or sharing responsibilities. Focus on checking the code anchor apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp, and whether its referenced/calling relationship and external dependency/calling relationship mean that changes will propagate.

function is located in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp#L72, which coordinates multiple external objects or capabilities and is used to explain technical collaboration and change impact areas.
Dynamic collaboration: tick calls log_loop_interval sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: tick -> log_loop_interval. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

tick calls log_loop_interval in apps/esp32_lvgl/src/esp32_lvgl_arduino_loop_runtime.cpp.
Dynamic collaboration: add_status_line calls add_label sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: add_status_line -> add_label. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

add_status_line calls apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp add_label.
Dynamic collaboration: add_u32_line calls add_label sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: add_u32_line -> add_label. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

add_u32_line in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp calls add_label in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp.
Dynamic collaboration: add_hex_line calls add_status_line sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: add_hex_line -> add_status_line. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

add_hex_line in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp calls add_status_line in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp.
Dynamic collaboration: companion_enter calls add_label sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: companion_enter -> add_label. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

companion_enter in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp calls add_label in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp.
Dynamic collaboration: companion_enter calls add_status_line sequence · dynamic_flow

Opening this sequence is to restore the static dependency of apps/esp32_lvgl into a readable collaboration: companion_enter -> add_status_line. Focus on determining whether this is an import, call, reference or message direction, and whether it really affects the running path.

companion_enter in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp calls add_status_line in apps/esp32_lvgl/src/esp32_lvgl_idf_app_registry.cpp.

Evidence

Problem