1# Application Development
2
3- developer<!--developer-->
4    <!--Del-->
5    - [Delete a tag.](onlyfortest/media/audio-kit-intro.md)
6    - [Verifying Word Batch Replacement](onlyfortest/media/audio-playback-overview.md)
7    - [Replace the label.](onlyfortest/media/media-kit-intro.md)
8    <!--DelEnd-->
9    - [Auto Service Test dev](onlyfortest/media/auto-service-test-dev.md)
10    - [Sample Test dev](onlyfortest/media/sample-test-dev.md)
11    - [API Info TestCase one-dev](onlyfortest/media/api-info-TC-one-dev.md)
12    - [API Info TestCase two-dev](onlyfortest/media/api-info-TC-two-dev.md)
13- reference<!--reference-->
14    <!--Del-->
15    - [api-info--This requirement can be implemented only in the reference folder.](onlyfortest/reference/test.md)
16    - [@ohos.multimedia.media (media service) (system interface)](onlyfortest/reference/test-sys.md)
17    <!--DelEnd-->
18    - error-code<!--reference-error-code-->
19        - [error-code](onlyfortest/reference/apis-media-kit/errorcode-media.md)    
20    - [Auto Service Test](onlyfortest/reference/auto-service-test.md)
21    - [Sample Test](onlyfortest/reference/sample-test.md)
22    - api-info<!--reference-api-info-->
23        - [API Info TestCase one](onlyfortest/reference/api-info-test-kit/api-info-TC-one.md)
24        - [API Info TestCase two](onlyfortest/reference/api-info-test-kit/api-info-TC-two.md)