Echo_(架構)

Infobox software | name = Echo | logo = | screenshot = | caption = | developer = NextApp | status = | latest release version = | latest release date = | operating system = | genre = Web應用框架 | license = Mozilla公共許可證 | website = Echo是NextApp公司開發的一個Web應用框架 ， 用於建構基於Web Ajax的應用程式 ， 其介面經過更新DOM實現 。