1. HTTP FrontPage Server Extensions Internet www.ncnu.edu.tw FrontPage Server Extension (FPSE) HTTP request message contains the command and the URL FrontPage clients: FrontPage, MS Word, Excel, etc. CGIISAPI

2. The FrontPage RPC Protocol HTTP Internet www.ncnu.edu.tw FrontPage Server Extension (FPSE) HTTP request message contains the command and the URL FrontPage clients CGIISAPI GET /_vti_inf.html HTTP/1.1 Date: Sat, 12 Aug 2000 20:31:21 GMT User-agent: Mozilla/2.0 (compatible; MS FrontPage 4.0) Host: taskserver:80 Accept: auth/sicily Content-length: 0

3. WebDAV Locking and Overwrite Prevention Author A Author B Shared file repository A ’ s copyB ’ s copy “ A ” publishes B ’ s copy “ B ” also publishes and overwrites “ A ”’ s changes

4. Locked resources and COPY/MOVE Status codeDefined byMethodsEffect

5. For More Information http://officeupdate.microsoft.com/frontpage/wpp/serk/ Microsoft FrontPage 2000 Server Extension Resource Kit. http://www.ietf.org/rfc/rfc2518.txt?number=2518 “ HTTP Extension for Distributed Authoring-WEBDAV ” http://www.ietf.org/rfc/rfc3253.txt?number=3253 “ Versioning Extension to WebDAV ” http://www.ics.uci.edu/pub/ietf/webdav/webdav_intro.pdf “ WEBDAV: IETF Standard for Collaborative Authoring on the Web ” http://www.ics.uci.edu/~ejw/http- future/whitehead/http_pos_paper.html http://www.ics.uci.edu/~ejw/http- future/whitehead/http_pos_paper.html “ Lessons from WebDAV fot the Next Generation Web Infrastructure ” http://www.microsift.com/msj/0699/dav/davtop.htm “ Distributed Authoring and Versioning Extensions for HTTP Enable Team Authoring ” http//www.webdav.org/dasl/protocol/draft-dasl-protocol-00.html “ DAV Searching & Locating ”