diff --git a/en/application-dev/Readme-EN.md b/en/application-dev/Readme-EN.md
index 8e42633391269303e5e8d888561281f57d1718ae..5854144672c9a672c58e889857e1697fe4fa1ab2 100644
--- a/en/application-dev/Readme-EN.md
+++ b/en/application-dev/Readme-EN.md
@@ -8,14 +8,14 @@
- Quick Start
- Getting Started
- [Preparations](quick-start/start-overview.md)
- - [Getting Started with eTS in the Traditional Coding Approach](quick-start/start-with-ets.md)
- - [Getting Started with eTS in the Low-Code Approach](quick-start/start-with-ets-low-code.md)
- - [Getting Started with JavaScript in the Traditional Coding Approach](quick-start/start-with-js.md)
- - [Getting Started with JavaScript in the Low-Code Approach](quick-start/start-with-js-low-code.md)
+ - [Getting Started with eTS in Stage Model](quick-start/start-with-ets-stage.md)
+ - [Getting Started with eTS in FA Model](quick-start/start-with-ets-fa.md)
+ - [Getting Started with JavaScript in FA Model](quick-start/start-with-js-fa.md)
- Development Fundamentals
- [Application Package Structure Configuration File (FA Model)](quick-start/package-structure.md)
- [Application Package Structure Configuration File (Stage Model)](quick-start/stage-structure.md)
- [SysCap](quick-start/syscap.md)
+ - [HarmonyAppProvision Configuration File](quick-start/app-provision-structure.md)
- Development
- [Ability Development](ability/Readme-EN.md)
- [UI Development](ui/Readme-EN.md)
@@ -44,5 +44,8 @@
- [Component Reference (TypeScript-based Declarative Development Paradigm)](reference/arkui-ts/Readme-EN.md)
- APIs
- [JS and TS APIs](reference/apis/Readme-EN.md)
+ - Native APIs
+ - [Standard Libraries](reference/native-lib/third_party_libc/musl.md)
+ - [Node_API](reference/native-lib/third_party_napi/napi.md)
- Contribution
- [How to Contribute](../contribute/documentation-contribution.md)
diff --git a/en/application-dev/napi/Readme-EN.md b/en/application-dev/napi/Readme-EN.md
index d5297e9374fdf42b1b50fa2ac6e545fe9766971b..280efd8afa5fa845dab0d607ed94b33e2a75e6d3 100644
--- a/en/application-dev/napi/Readme-EN.md
+++ b/en/application-dev/napi/Readme-EN.md
@@ -2,6 +2,7 @@
- [Using Native APIs in Application Projects](napi-guidelines.md)
- [Drawing Development](drawing-guidelines.md)
-- [Native Window Development](native-window-guidelines.md)
- [Raw File Development](rawfile-guidelines.md)
+- [Native Window Development](native-window-guidelines.md)
+
diff --git a/en/device-dev/Readme-EN.md b/en/device-dev/Readme-EN.md
index da79e395fe463e47d3606de98f799e3e306d3b0e..99194b48e979df7822002596d27c74f6c76b29da 100644
--- a/en/device-dev/Readme-EN.md
+++ b/en/device-dev/Readme-EN.md
@@ -6,53 +6,57 @@
- [Glossary](../glossary.md)
- [Release Notes](../release-notes/Readme.md)
- Quick Start
- - [Mini and Small Systems](quick-start/quickstart-lite.md)
- - [Standard System](quick-start/quickstart-standard.md)
+ - [Mini and Small Systems](quick-start/quickstart-ide-lite-overview.md)
+ - [Standard System](quick-start/quickstart-ide-standard-overview.md)
- Compatibility and Security
- [Privacy and Security](security/Readme-EN.md)
- Porting
- - [Third-Party Library Porting Guide for Mini and Small Systems](porting/porting-thirdparty.md)
- - [Mini System SoC Porting Guide](porting/porting-minichip.md)
- - [Mini System SoC Porting Cases](porting/porting-minichip-cases.md)
- - [Small System SoC Porting Guide](porting/porting-smallchip.md)
- - [Standard System SoC Porting Guide](porting/standard-system-porting-guide.md)
+ - Porting Guide
+ - [Third-Party Library Porting Guide for Mini and Small Systems](porting/porting-thirdparty-overview.md)
+ - [Mini System SoC Porting Guide](porting/porting-minichip.md)
+ - [Small System SoC Porting Guide](porting/porting-smallchip-prepare-needs.md)
+ - [Standard System SoC Porting Guide](porting/standard-system-porting-guide.md)
+ - Porting Cases
+ - Mini System SoC Porting Cases
+ - [Mini-System Devices with Screens — Bestechnic SoC Porting Case](porting/porting-bes2600w-on-minisystem-display-demo.md)
+ - [Combo Solution — ASR Chip Porting Case](porting/porting-asr582x-combo-demo.md)
+
- Subsystem Development
- Kernel
- - [Kernel for the Mini System](kernel/kernel-mini.md)
- - [Kernel for the Small System](kernel/kernel-small.md)
- - [Kernel for the Standard System](kernel/kernel-standard.md)
+ - [Kernel for the Mini System](kernel/kernel-mini-overview.md)
+ - [Kernel for the Small System](kernel/kernel-small-overview.md)
+ - [Kernel for the Standard System](kernel/kernel-standard-overview.md)
- [Driver](driver/Readme-EN.md)
- - [Compilation and Building](subsystems/subsys-build.md)
+ - [Compilation and Building](subsystems/subsys-build-all.md)
- [Distributed Remote Startup](subsystems/subsys-remote-start.md)
- - [Graphics](subsystems/subsys-graphics.md)
- - [Multimedia](subsystems/subsys-multimedia.md)
- - [Utils](subsystems/subsys-utils.md)
- - [AI Framework](subsystems/subsys-aiframework.md)
- - [Data Management](subsystems/subsys-data.md)
- - [Sensor](subsystems/subsys-sensor.md)
- - [USB](subsystems/subsys-usbservice.md)
- - [Application Framework](subsystems/subsys-application-framework.md)
+ - [Graphics](subsystems/subsys-graphics-overview.md)
+ - [Multimedia](subsystems/subsys-multimedia-camera-overview.md)
+ - [Utils](subsystems/subsys-utils-overview.md)
+ - [AI Framework](subsystems/subsys-aiframework-guide.md)
+ - [Data Management](subsystems/subsys-data-relational-database-overview.md)
+ - [Sensor](subsystems/subsys-sensor-overview.md)
+ - [USB](subsystems/subsys-usbservice-overview.md)
+ - [Application Framework](subsystems/subsys-application-framework-overview.md)
- [OTA Update](subsystems/subsys-ota-guide.md)
- - [Telephony](subsystems/subsys-tel.md)
- - [Security](subsystems/subsys-security.md)
- - [Startup](subsystems/subsys-boot.md)
- - [DFX](subsystems/subsys-dfx.md)
+ - [Telephony](subsystems/subsys-tel-overview.md)
+ - [Security](subsystems/subsys-security-overview.md)
+ - [Startup](subsystems/subsys-boot-overview.md)
+ - [DFX](subsystems/subsys-dfx-overview.md)
- Featured Topics
- [HPM Part](hpm-part/Readme-EN.md)
- Device Development Examples
- - [Mini- and Small-System Devices](guide/device-lite.md)
- - [Standard-System Devices](guide/device-standard.md)
+ - [Mini- and Small-System Devices](guide/device-wlan-led-control.md)
+ - [Standard-System Devices](guide/device-clock-guide.md)
- Debugging
- [Test Case Development](subsystems/subsys-testguide-test.md)
- - [R&D Tools](subsystems/subsys-toolchain.md)
+ - [R&D Tools](subsystems/subsys-toolchain-hdc-guide.md)
- XTS Certification
- [XTS Test Case Development](subsystems/subsys-xts-guide.md)
- Tools
- [Docker Environment](get-code/gettools-acquire.md)
- [IDE](get-code/gettools-ide.md)
- Hands-On Tutorials
- - [Samples](https://gitee.com/openharmony/app_samples/blob/master/README.md)
- - [Codelabs](https://gitee.com/openharmony/codelabs)
+ - [Codelabs](https://gitee.com/openharmony/codelabs)
- References
- [FAQs](faqs/Readme-EN.md)
- Contribution
diff --git a/en/device-dev/get-code/gettools.md b/en/device-dev/get-code/gettools.md
deleted file mode 100644
index 95366cdb4c3f08c8783e132e5489b026622d262a..0000000000000000000000000000000000000000
--- a/en/device-dev/get-code/gettools.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Tool Acquisition
-
-- **[Docker Environment](gettools-acquire.md)**
-
-- **[IDE](gettools-ide.md)**
-
-
diff --git a/en/device-dev/get-code/sourcecode.md b/en/device-dev/get-code/sourcecode.md
deleted file mode 100644
index 5e118ce26fcaab05055610b3ca990fd6c3f676b0..0000000000000000000000000000000000000000
--- a/en/device-dev/get-code/sourcecode.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Source Code Acquisition
-
-- **[Source Code Acquisition](sourcecode-acquire.md)**
-
-
diff --git a/en/device-dev/guide/Readme-EN.md b/en/device-dev/guide/Readme-EN.md
index 281430305ce6af02b4cb1481e6100acc35c233af..4da6d3441ea153312b7a0f283be891052c430515 100644
--- a/en/device-dev/guide/Readme-EN.md
+++ b/en/device-dev/guide/Readme-EN.md
@@ -1,25 +1,25 @@
# Development Examples
-- [Mini- and Small-System Devices](device-lite.md)
- - [WLAN-connected Products](device-wlan.md)
+- Mini- and Small-System Devices
+ - WLAN-connected Products
- [LED Peripheral Control](device-wlan-led-control.md)
- [Third-Party SDK Integration](device-wlan-sdk.md)
- - [Cameras Without a Screen](device-iotcamera.md)
- - [Camera Control](device-iotcamera-control.md)
+ - Cameras Without a Screen
+ - Camera Control
- [Overview](device-iotcamera-control-overview.md)
- - [Development Guidelines](device-iotcamera-control-demo.md)
+ - Development Guidelines
- [Photographing](device-iotcamera-control-demo-photodevguide.md)
- [Video Recording](device-iotcamera-control-demo-videodevguide.md)
- [Use Case](device-iotcamera-control-example.md)
- - [Cameras with a Screen](device-camera.md)
- - [Screen and Camera Control](device-camera-control.md)
+ - Cameras with a Screen
+ - Screen and Camera Control
- [Overview](device-camera-control-overview.md)
- - [Development Guidelines](device-camera-control-demo.md)
+ - Development Guidelines
- [Photographing](device-camera-control-demo-photoguide.md)
- [Video Recording](device-camera-control-demo-videoguide.md)
- [Previewing](device-camera-control-demo-previewguide.md)
- [Use Case](device-camera-control-example.md)
- - [Visual Application Development](device-camera-visual.md)
+ - Visual Application Development
- [Overview](device-camera-visual-overview.md)
- [Preparations](device-camera-visual-prepare.md)
- [Adding Pages](device-camera-visual-addpage.md)
@@ -28,7 +28,7 @@
- [Debugging and Packaging](device-camera-visual-debug.md)
- [Running on the Device](device-camera-visual-run.md)
- [FAQs](device-camera-visual-faqs.md)
-- [Standard-System Devices](device-standard.md)
+- Standard-System Devices
- [Development Guidelines on Clock Apps](device-clock-guide.md)
- [Development Example for Platform Drivers](device-driver-demo.md)
- [Development Example for Peripheral Drivers](device-outerdriver-demo.md)
\ No newline at end of file
diff --git a/en/device-dev/guide/device-camera-control-demo.md b/en/device-dev/guide/device-camera-control-demo.md
deleted file mode 100644
index 0656cdd72908cb5fd9c21e373f478b09c3693406..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-camera-control-demo.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Screen and Camera Control Development
-
-- **[Photographing](device-camera-control-demo-photoguide.md)**
-
-- **[Video Recording](device-camera-control-demo-videoguide.md)**
-
-- **[Previewing](device-camera-control-demo-previewguide.md)**
-
-
diff --git a/en/device-dev/guide/device-camera-control.md b/en/device-dev/guide/device-camera-control.md
deleted file mode 100644
index e57f328b6d90589b33abc16752c301b2ef78a158..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-camera-control.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Screen and Camera Control
-
-- **[Screen and Camera Control Overview](device-camera-control-overview.md)**
-
-- **[Screen and Camera Control Development](device-camera-control-demo.md)**
-
-- **[Use Case](device-camera-control-example.md)**
-
-
diff --git a/en/device-dev/guide/device-camera-visual.md b/en/device-dev/guide/device-camera-visual.md
deleted file mode 100644
index 223659e705eb9f4ba215c92237e631dcf31c3b7d..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-camera-visual.md
+++ /dev/null
@@ -1,19 +0,0 @@
-# Visual Application Development
-
-- **[Overview](device-camera-visual-overview.md)**
-
-- **[Preparations](device-camera-visual-prepare.md)**
-
-- **[Adding Pages](device-camera-visual-addpage.md)**
-
-- **[Building the Home Page](device-camera-visual-firstpage.md)**
-
-- **[Building the Details Page](device-camera-visual-details.md)**
-
-- **[Debugging and Packaging](device-camera-visual-debug.md)**
-
-- **[Running on the Device](device-camera-visual-run.md)**
-
-- **[FAQs](device-camera-visual-faqs.md)**
-
-
diff --git a/en/device-dev/guide/device-camera.md b/en/device-dev/guide/device-camera.md
deleted file mode 100644
index 3fab60c51ec77fb4f023d1337edc3327aa29dbc0..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-camera.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Cameras with a Screen
-
-- **[Screen and Camera Control](device-camera-control.md)**
-
-- **[Visual Application Development](device-camera-visual.md)**
-
-
diff --git a/en/device-dev/guide/device-iotcamera-control-demo.md b/en/device-dev/guide/device-iotcamera-control-demo.md
deleted file mode 100644
index 2d711a2c708133b926a17f2f21ee576171b4541d..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-iotcamera-control-demo.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Camera Control Development
-
-- **[Photographing](device-iotcamera-control-demo-photodevguide.md)**
-
-- **[Video Recording](device-iotcamera-control-demo-videodevguide.md)**
-
-
diff --git a/en/device-dev/guide/device-iotcamera-control.md b/en/device-dev/guide/device-iotcamera-control.md
deleted file mode 100644
index 35d1af547b6a0b579c201e01079c1429f5249492..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-iotcamera-control.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Camera Control
-
-- **[Camera Control Overview](device-iotcamera-control-overview.md)**
-
-- **[Camera Control Development](device-iotcamera-control-demo.md)**
-
-- **[Use Case](device-iotcamera-control-example.md)**
-
-
diff --git a/en/device-dev/guide/device-iotcamera.md b/en/device-dev/guide/device-iotcamera.md
deleted file mode 100644
index 7cbb7f06d6d084d8c3876d78b30514b95cc7b948..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-iotcamera.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Cameras Without a Screen
-
-- **[Camera Control](device-iotcamera-control.md)**
-
-
diff --git a/en/device-dev/guide/device-lite.md b/en/device-dev/guide/device-lite.md
deleted file mode 100644
index 506b0beefeaad68acee95d488329dbf0d292ae7d..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-lite.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Mini- and Small-System Devices
-
-- **[WLAN-connected Products](device-wlan.md)**
-
-- **[Cameras Without a Screen](device-iotcamera.md)**
-
-- **[Cameras with a Screen](device-camera.md)**
-
-
diff --git a/en/device-dev/guide/device-standard.md b/en/device-dev/guide/device-standard.md
deleted file mode 100644
index 7ee3a52b865cae093c77aa56f784bbd56bcc91f3..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-standard.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Standard-System Devices
-
-- **[Development Guidelines on Clock Apps](device-clock-guide.md)**
-
-- **[Development Example for Platform Drivers](device-driver-demo.md)**
-
-- **[Development Example for Peripheral Drivers](device-outerdriver-demo.md)**
-
-
diff --git a/en/device-dev/guide/device-wlan-led.md b/en/device-dev/guide/device-wlan-led.md
deleted file mode 100644
index 55faec5993ec121fc8af870ab4250ca7f63ea120..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-wlan-led.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# LED Peripheral Control
-
-- **[LED Peripheral Control](device-wlan-led-control.md)**
-
-
diff --git a/en/device-dev/guide/device-wlan.md b/en/device-dev/guide/device-wlan.md
deleted file mode 100644
index dd1fb71a73aa1bef16a5d4a906a00fe1b709df4b..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device-wlan.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# WLAN-connected Products
-
-
-- **[LED Peripheral Control](device-wlan-led.md)**
-
-- **[Third-Party SDK Integration](device-wlan-sdk.md)**
-
-
diff --git a/en/device-dev/guide/device.md b/en/device-dev/guide/device.md
deleted file mode 100644
index 651da70de63631e3aeec538fea3974a9fe75b122..0000000000000000000000000000000000000000
--- a/en/device-dev/guide/device.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Devices
-
-- **[Mini- and Small-System Devices](device-lite.md)**
-
-- **[Standard-System Devices](device-standard.md)**
-
-
diff --git a/en/device-dev/quick-start/quickstart-lite.md b/en/device-dev/quick-start/quickstart-lite.md
deleted file mode 100644
index 95674ead0e58a3a495d5968aa2994655bf33a639..0000000000000000000000000000000000000000
--- a/en/device-dev/quick-start/quickstart-lite.md
+++ /dev/null
@@ -1,6 +0,0 @@
-# Getting Started with Mini and Small Systems
-
-
-
-- **[Getting Started with Mini and Small Systems (IDE Mode)](quickstart-lite-ide-directory.md)**
-- **[Getting Started with Mini and Small Systems (Installation Package Mode)](quickstart-lite-package-directory.md)**
diff --git a/en/device-dev/quick-start/quickstart-standard.md b/en/device-dev/quick-start/quickstart-standard.md
deleted file mode 100644
index b66899afd7e5b3c0e5acd1600115bc9c12ce2e14..0000000000000000000000000000000000000000
--- a/en/device-dev/quick-start/quickstart-standard.md
+++ /dev/null
@@ -1,6 +0,0 @@
-# Getting Started with Standard System
-
-
-
-- **[Getting Started with Standard System (IDE Mode)](quickstart-standard-ide-directory.md)**
-- **[Getting Started with Standard System (Installation Package Mode)](quickstart-standard-package-directory.md)**
diff --git a/en/device-dev/subsystems/subsys-application-framework.md b/en/device-dev/subsystems/subsys-application-framework.md
deleted file mode 100644
index d182dd67a37a05d615a169b96a08ea0091b578fd..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-application-framework.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# Application Framework
-
-- **[Application Framework Overview](subsys-application-framework-overview.md)**
-
-- **[Setting Up a Development Environment](subsys-application-framework-envbuild.md)**
-
-- **[Development Guidelines](subsys-application-framework-guide.md)**
-
-- **[Development Example](subsys-application-framework-demo.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-boot-init.md b/en/device-dev/subsystems/subsys-boot-init.md
deleted file mode 100644
index 74be1119d5486153c9d3353db431e56e67546528..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-boot-init.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# init Module
-
-- **[init Configuration File](subsys-boot-init-cfg.md)**
-
-- **[Job Management](subsys-boot-init-jobs.md)**
-
-- **[Service Management](subsys-boot-init-service.md)**
-
-- **[Parameter Management](subsys-boot-init-sysparam.md)**
-
-- **[Sandbox Management](subsys-boot-init-sandbox.md)**
-
-- **[Plug-in Management](subsys-boot-init-plugin.md)**
diff --git a/en/device-dev/subsystems/subsys-boot.md b/en/device-dev/subsystems/subsys-boot.md
deleted file mode 100644
index 7888048a08574ef3a06b3cdca551a4d598dc201d..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-boot.md
+++ /dev/null
@@ -1,10 +0,0 @@
-# Startup
-
-- **[Startup](subsys-boot-overview.md)**
-- **[init Module](subsys-boot-init.md)**
-- **[appspawn Module](subsys-boot-appspawn.md)**
-- **[bootstrap Module](subsys-boot-bootstrap.md)**
-- **[FAQs](subsys-boot-faqs.md)**
-- **[Reference](subsys-boot-ref.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-build.md b/en/device-dev/subsystems/subsys-build.md
deleted file mode 100644
index 814bb5e74c1f84240a0e1b2f259bc29391381ec1..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-build.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Compilation and Building
-
-- **[Compilation and Building Guide](subsys-build-all.md)**
-
-- **[Build System Coding Specifications and Best Practices](subsys-build-gn-coding-style-and-best-practice.md)**
-
-- **[Building the Kconfig Visual Configuration](subsys-build-gn-kconfig-visual-config-guide.md)**
diff --git a/en/device-dev/subsystems/subsys-data-relational-database.md b/en/device-dev/subsystems/subsys-data-relational-database.md
deleted file mode 100644
index b1b3c1b15503b45874a2c6886458e7d904af9388..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-data-relational-database.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# RDB
-
-- **[RDB Overview](subsys-data-relational-database-overview.md)**
-
-- **[RDB Development](subsys-data-relational-database-guide.md)**
diff --git a/en/device-dev/subsystems/subsys-data-storage.md b/en/device-dev/subsystems/subsys-data-storage.md
deleted file mode 100644
index 504f220b7b85bc4d942ae0b35c0ad60c295729cd..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-data-storage.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Lightweight Data Store
-
-- **[Lightweight Data Store Overview](subsys-data-storage-overview.md)**
-
-- **[Lightweight Data Store Development](subsys-data-storage-guide.md)**
diff --git a/en/device-dev/subsystems/subsys-data.md b/en/device-dev/subsystems/subsys-data.md
deleted file mode 100644
index f74c8f5cf30d86ba342205b1ced63d5fa6b47804..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-data.md
+++ /dev/null
@@ -1,4 +0,0 @@
-# Data Management
-
-- **[RDB](subsys-data-relational-database.md)**
-- **[Lightweight Data Store](subsys-data-storage.md)**
diff --git a/en/device-dev/subsystems/subsys-dfx-hisysevent.md b/en/device-dev/subsystems/subsys-dfx-hisysevent.md
deleted file mode 100644
index 86ceb227152ca26ec2c50a9be11d7c15b9be6adf..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-dfx-hisysevent.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# HiSysEvent Development
-
-- **[HiSysEvent Overview](subsys-dfx-hisysevent-overview.md)**
-
-- **[HiSysEvent Logging Configuration](subsys-dfx-hisysevent-logging-config.md)**
-
-- **[HiSysEvent Logging](subsys-dfx-hisysevent-logging.md)**
-
-- **[HiSysEvent Listening](subsys-dfx-hisysevent-listening.md)**
-
-- **[HiSysEvent Query](subsys-dfx-hisysevent-query.md)**
-
-- **[HiSysEvent Tool Usage](subsys-dfx-hisysevent-tool.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-dfx.md b/en/device-dev/subsystems/subsys-dfx.md
deleted file mode 100644
index f01cb1eb3be14fb4a3519012fdbaf94599b82a0a..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-dfx.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# DFX Development Guide
-
-- **[DFX Overview](subsys-dfx-overview.md)**
-- **[HiLog Development](subsys-dfx-hilog-rich.md)**
-- **[HiLog_Lite Development](subsys-dfx-hilog-lite.md)**
-- **[HiTrace Development](subsys-dfx-hitrace.md)**
-- **[HiCollie Development](subsys-dfx-hicollie.md)**
-- **[HiSysEvent Development](subsys-dfx-hisysevent.md)**
-- **[HiDumper Development](subsys-dfx-hidumper.md)**
-- **[HiChecker Development](subsys-dfx-hichecker.md)**
-- **[Hiview Development](subsys-dfx-hiview.md)**
diff --git a/en/device-dev/subsystems/subsys-graphics.md b/en/device-dev/subsystems/subsys-graphics.md
deleted file mode 100644
index b687f2f46074750639367f99f76de6abb8c11063..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-graphics.md
+++ /dev/null
@@ -1,13 +0,0 @@
-# Graphics
-
-- **[Graphics Overview](subsys-graphics-overview.md)**
-
-- **[Container Component Development](subsys-graphics-container-guide.md)**
-
-- **[Development of Layout Container Components](subsys-graphics-layout-guide.md)**
-
-- **[Common Component Development](subsys-graphics-common-guide.md)**
-
-- **[Animator Development](subsys-graphics-animation-guide.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-multimedia-camera.md b/en/device-dev/subsystems/subsys-multimedia-camera.md
deleted file mode 100644
index d98f596ccb6373eef7b306d15ad1d2bdebd75b00..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-multimedia-camera.md
+++ /dev/null
@@ -1,11 +0,0 @@
-# Camera
-
-- **[Camera Overview](subsys-multimedia-camera-overview.md)**
-
-- **[Photographing Development](subsys-multimedia-camera-photo-guide.md)**
-
-- **[Video Recording Development](subsys-multimedia-camera-record-guide.md)**
-
-- **[Previewing Development](subsys-multimedia-camera-preview-guide.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-multimedia-video.md b/en/device-dev/subsystems/subsys-multimedia-video.md
deleted file mode 100644
index c1ef1b3965da35d397c3ff3a3dc7bbb324e660dd..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-multimedia-video.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Audio/Video
-
-- **[Audio/Video Overview](subsys-multimedia-video-overview.md)**
-
-- **[Audio/Video Playback Development](subsys-multimedia-video-play-guide.md)**
-
-- **[Audio/Video Recording Development](subsys-multimedia-video-record-guide.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-multimedia.md b/en/device-dev/subsystems/subsys-multimedia.md
deleted file mode 100644
index c4b8f72b08f658c27e999c81452c400e0403018b..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-multimedia.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Multimedia
-
-- **[Camera](subsys-multimedia-camera.md)**
-
-- **[Audio/Video](subsys-multimedia-video.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-ota.md b/en/device-dev/subsystems/subsys-ota.md
deleted file mode 100644
index cf835e028e0a171cc4a002ace3878cc130bb965b..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-ota.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# Update
-
-
-
-- **[OTA Update](subsys-ota-guide.md)**
\ No newline at end of file
diff --git a/en/device-dev/subsystems/subsys-security.md b/en/device-dev/subsystems/subsys-security.md
deleted file mode 100644
index 7658eee732e6120279604ff10f5132c8d12fca95..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-security.md
+++ /dev/null
@@ -1,12 +0,0 @@
-# Security
-
-- **[Security Overview](subsys-security-overview.md)**
-
-- **[Development on Application Signature Verification](subsys-security-sigverify.md)**
-
-- **[Development on Application Permission Management](subsys-security-rightmanagement.md)**
-
-- **[Development on IPC Authentication](subsys-security-communicationverify.md)**
-
-- **[Development on Device Security Level Management](subsys-security-devicesecuritylevel.md)**
-
diff --git a/en/device-dev/subsystems/subsys-sensor.md b/en/device-dev/subsystems/subsys-sensor.md
deleted file mode 100644
index 86091571411176655cfb29452781d01ee5e70c32..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-sensor.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Sensor
-
-- **[Sensor Overview](subsys-sensor-overview.md)**
-
-- **[Sensor Usage Guidelines](subsys-sensor-guide.md)**
-
-- **[Sensor Usage Example](subsys-sensor-demo.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-testguide-envbuild.md b/en/device-dev/subsystems/subsys-testguide-envbuild.md
deleted file mode 100644
index 515d55a4f3d2c1e01f3bc0e660b07fa2b7b1fe55..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-testguide-envbuild.md
+++ /dev/null
@@ -1,81 +0,0 @@
-# Setting Up the Environment
-
-## Basic Test Framework Environment
-
-| Environment | Operating System | Linux Extended Component | Python | Python Plug-ins | NFS Server | HDC |
-| ------------ | ------------ | ------------ | ------------ | ------------ | ------------ | ------------ |
-| Version | Ubuntu 18.04 or later | libreadline-dev | 3.7.5 or later | - pySerial 3.3 or later
- Paramiko 2.7.1 or later
- Setuptools 40.8.0 or later
- rsa4.0 or later | haneWIN NFS Server 1.2.50 or later, or NFS v4 or later | 1.1.0 or later |
-| Description | Provides code build environment. | Plug-in used to read commands. | Language used by the test framework. | - pySerial: supports Python serial port communication.
- Paramiko: allows Python to use SSH.
- Setuptools: allows Python packages to be created and distributed easily.
- rsa: implements RSA encryption in Python. | Enables devices to be connected through the serial port. | A tool that enables devices to be connected through the HarmonyOS Device Connector (HDC). |
-
-## Installation Process
-1. Run the following command to install the Linux extended component libreadline:
- ```
- sudo apt-get install libreadline-dev
- ```
- The installation is successful if the following information is displayed:
- ```
- Reading package lists... Done
- Building dependency tree
- Reading state information... Done
- libreadline-dev is already the newest version (7.0-3).
- 0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
- ```
-2. Run the following command to install the Setuptools plug-in:
- ```
- pip3 install setuptools
- ```
- The installation is successful if the following information is displayed:
- ```
- Requirement already satisfied: setuptools in d:\programs\python37\lib\site-packages (41.2.0)
- ```
-3. Run the following command to install the Paramiko plug-in:
- ```
- pip3 install paramiko
- ```
- The installation is successful if the following information is displayed:
- ```
- Installing collected packages: pycparser, cffi, pynacl, bcrypt, cryptography, paramiko
- Successfully installed bcrypt-3.2.0 cffi-1.14.4 cryptography-3.3.1 paramiko-2.7.2 pycparser-2.20 pynacl-1.4.0
- ```
-4. Run the following command to install the ras plug-in:
- ```
- pip3 install rsa
- ```
- The installation is successful if the following information is displayed:
- ```
- Installing collected packages: pyasn1, rsa
- Successfully installed pyasn1-0.4.8 rsa-4.7
- ```
-5. Run the following command to install the pySerial plug-in:
- ```
- pip3 install pyserial
- ```
- The installation is successful if the following information is displayed:
- ```
- Requirement already satisfied: pyserial in d:\programs\python37\lib\site-packages\pyserial-3.4-py3.7.egg (3.4)
- ```
-6. Install the NFS server if the device outputs results only through the serial port.
- - In Windows, install, for example, haneWIN NFS Server 1.2.50.
- - In Linux, run the following command to install the NFS server:
- ```
- sudo apt install nfs-kernel-server
- ```
- The installation is successful if the following information is displayed:
- ```
- Reading package lists... Done
- Building dependency tree
- Reading state information... Done
- nfs-kernel-server is already the newest version (1:1.3.4-2.1ubuntu5.3).
- 0 upgraded, 0 newly installed, 0 to remove and 11 not upgraded.
- ```
-7. Install the HDC tool if the device supports HDC connections. For details about the installation process, see [Readme](https://gitee.com/openharmony/developtools_hdc_standard/blob/master/README.md).
-
-
-## Checking the Environment
-
- | Check Item | Operation | Expected Result |
- | --- | --- | --- |
- | Whether Python is successfully installed | Run the **python --version** command. | The Python version is 3.7.5 or later. |
- | Whether Python plug-ins are successfully installed | Go to the **test/developertest** directory and run **start.bat** or **start.sh**. | The **>>>** prompt is displayed. |
- | NFS server status (for the devices that support only serial port output) | Log in to the development board through the serial port and run the **mount** command to mount the NFS. | The file directory can be mounted. |
- | Whether HDC tool is successfully installed | Run the **hdc_std -v** command. | The HDC version is 1.1.0 or later. |
diff --git a/en/device-dev/subsystems/subsys-toolchain.md b/en/device-dev/subsystems/subsys-toolchain.md
deleted file mode 100644
index ebb14d2e60dc493893241f8d308df7c8a8d93deb..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-toolchain.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# R&D Tools
-
-- **[bytrace](subsys-toolchain-bytrace-guide.md)**
-
-- **[hdc\_std](subsys-toolchain-hdc-guide.md)**
-
-- **[hiperf](subsys-toolchain-hiperf.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys-usbservice.md b/en/device-dev/subsystems/subsys-usbservice.md
deleted file mode 100644
index 9369d067cb3d73b3a9b074e4fc7c383b0bea429e..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-usbservice.md
+++ /dev/null
@@ -1,8 +0,0 @@
-# USB
-
-- **[USB Overview](subsys-usbservice-overview.md)**
-
-- **[USB Usage Guidelines](subsys-usbservice-guide.md)**
-
-- **[USB Usage Example](subsys-usbservice-demo.md)**
-
diff --git a/en/device-dev/subsystems/subsys-utils.md b/en/device-dev/subsystems/subsys-utils.md
deleted file mode 100644
index 96b98bfb785eb0dbfca81f57ad9242fa7dd3f41e..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys-utils.md
+++ /dev/null
@@ -1,9 +0,0 @@
-# Utils
-
-- **[Utils Overview](subsys-utils-overview.md)**
-
-- **[Utils Development](subsys-utils-guide.md)**
-
-- **[Utils FAQ](subsys-utils-faqs.md)**
-
-
diff --git a/en/device-dev/subsystems/subsys.md b/en/device-dev/subsystems/subsys.md
deleted file mode 100644
index 7eb175c7a40640aae1e0bc1de699179be0e91b23..0000000000000000000000000000000000000000
--- a/en/device-dev/subsystems/subsys.md
+++ /dev/null
@@ -1,22 +0,0 @@
-# Subsystem Development Guidelines
-
-- **[Compilation and Building](subsys-build.md)**
-- **[Distributed Remote Startup](subsys-remote-start.md)**
-- **[Graphics](subsys-graphics.md)**
-- **[Multimedia](subsys-multimedia.md)**
-- **[Utils](subsys-utils.md)**
-- **[AI Framework](subsys-aiframework.md)**
-- **[Data Management](subsys-data.md)**
-- **[Sensor](subsys-sensor.md)**
-- **[USB](subsys-usbservice.md)**
-- **[Application Framework](subsys-application-framework.md)**
-- **[OTA Updade](subsys-ota-guide.md)**
-- **[Telephony](subsys-tel.md)**
-- **[Security](subsys-security.md)**
-- **[Startup](subsys-boot.md)**
-- **[Test Case Development](subsys-testguide-test.md)**
-- **[DFX](subsys-dfx.md)**
-- **[R&D Tools](subsys-toolchain.md)**
-- **[XTS Test Case Development](subsys-xts-guide.md)**
-
-