Okay, the `grep` search confirms the file structure. It appears the core logic is within `module-notice-parent/micro-notice`, and there's a related scheduling module. The key files I need are:
*`.../com/zhht/common/IOperation.java`
*`.../com/zhht/notice/SmsModel.java`
I will now read these two files to get a precise understanding of the interface I need to implement and the data model I'll be working with.