- From: Babich, Alan <ABabich@filenet.com>
- Date: Fri, 1 May 1998 12:35:51 -0700
- To: "'Alex Hopmann'" <hopmann@holonet.net>, www-webdav-dasl@w3.org
I have reviewed the revised charter below, and I like it. I have no suggestions for improvement at this time. Alan Babich > -----Original Message----- > From: Alex Hopmann [SMTP:hopmann@holonet.net] > Sent: April 07, 1998 11:39 AM > To: www-webdav-dasl@w3.org > Subject: Re: Revised charter > > Ok, I like your latter suggestion: > > >- How to discover the search capabilities of a set of resources > > --------------------------------------------------- > > DAV Searching and Locating (DASL) > > Last Modified: 04-02-98 > > Chair(s): > > Alex Hopmann, <alexhop@microsoft.com> > > Applications Area Director(s): > > Keith Moore, <moore@cs.utk.edu> > Harald Alvestrand <Harald.T.Alvestrand@uninett.no> > > Applications Area Advisor: > > TBD > > Mailing Lists: > > General Discussion: www-webdav-dasl@w3.org > > To Subscribe: www-webdav-dasl-request@w3.org Put subscribe in body > > Archive: http://lists.w3.org/Archives/Public/www-webdav-dasl/ > > Description of Working Group > > The goal of this working group is to define and develop an extensible > DAV > Searching and Locating protocol as an application of HTTP. The > working > group will define protocol elements that enable server-executed > queries to > locate resources based upon their property values and text content as > expressed by the DAV data model. > > Problem Definition > > WEBDAV and HTTP enable client-side searching by defining a simple set > of > mechanisms (the PROPFIND and GET methods) to locate those resources > meeting > client-defined criteria. These mechanisms can be inefficient, do not > adequately deal with some simple content-based queries, and do not > take > advantage of the advanced querying and caching capabilities of modern > storage systems. > > The DASL Protocol will enable a HTTP/1.1 compliant scheme for > server-side > searching to address these limitations. The working group will define > the > following for a server-side searching mechanism: > > - How to express the search: the syntax and semantics of a query > - How to focus the query by identifying its scope > - How to discover the search capabilities of a set of resources. > - The syntax for the search results > > > Working Group Scope > > A generalized search mechanism is a broad problem space. It > encompasses a > variety of object models, typing schemes, and media. By focusing on a > subset > of this space, the problem of locating resources based on property > values > and text content, the working group will leverage much of the existing > work > that has been done on querying under simple property and resource > models. > > In-Scope items include: > - typing > - comparisons (>, >=, <, <=, !=, ==) > - internationalized content > - text content matching > - dealing with arbitrary XML values > > Out-of-scope items include: > - definitions of well-known properties > - server-to-server communication protocols > - cross-language comparisons > - searching for non-text content (images, video, audio, etc.) > - client control of server administration (e.g. indexing) > > Deliverables > > The final output of this working group is expected to be two > documents: > > (1) A requirements document, that describes the high-level functional > requirements for DASL, including rationale. This will be an > Informational > document. > > (2) A protocol specification describing the additions to HTTP (new > methods, > headers, request bodies, and response bodies) needed to implement the > DASL > requirements. This will be a Standards Track document. > > Goals and Milestones: > > Done - Draft Working Group Charter. Establish mailing list, archive, > and > homepage. > > Feb 98 - Produce initial Requirements document. Submit as Internet > Draft. > > Mar 98 - Produce DASL protocol specification. Submit as Internet > Draft. > > Mar 98 - Meet in LA IETF and hold working group meeting to develop the > protocol specification and requirements document. > > Aug 98 - Meet in Chicago IETF to further develop protocol > specification. > > Aug 98 - Complete Scenarios document. > > Dec 98 - Create final version of DASL requirements document. Submit > as > Informational RFC. > > Mar 99 - Complete revisions to DASL protocol. Submit as a Proposed > Standard > RFC > > > > > > -----Original Message----- > From: Fay, Chuck <CFay@filenet.com> > To: Alex Hopmann <hopmann@holonet.net>; www-webdav-dasl@w3.org > <www-webdav-dasl@w3.org> > Date: Monday, April 06, 1998 1:57 PM > Subject: RE: Revised charter > > > >Alex, > > > >> The working group will define the > >> following for a server-side searching mechanism: > >> > >> - How to express the search: the syntax and semantics of a query > >> - How to focus the query by identifying its scope > >> - How to discover the search capability of a resource. > >> - The syntax for the search results > > > >The third bullet above on discoverability is potentially confusing, > in > >that it refers to a single resource. Discovering the search > >capabilities of a single resource is only interesting if that > resource > >can act as a search scope representing a set of resources (e.g., > nested > >below it in the namespace), and the capabilities actually apply to > >searching the set of resources. I assume that's what is meant here, > but > >it could be stated more clearly as: > > > >- How to discover the search capabilities of a scope > > > >or > > > >- How to discover the search capabilities of a set of resources > > > >--Chuck Fay > >FileNET Corporation, 3565 Harbor Blvd., Costa Mesa, CA 92626 > >phone: (714) 966-3513, fax: (714) 966-3288, email: > cfay@filenet.com > > > >> -----Original Message----- > >> From: Alex Hopmann [SMTP:hopmann@holonet.net] > >> Sent: Saturday, April 04, 1998 8:45 PM > >> To: www-webdav-dasl@w3.org > >> Subject: Revised charter > >> > >> Here is a revised proposed charter for DASL, based on some feedback > >> and some > >> wordsmithing by various folks in Los Angeles. Please comment on > this > >> asap to > >> the list (or privately to me), since I intend to submit this to the > >> IESG by > >> the end of next week. > >> > >> --------------------------------------------------- > >> > >> DAV Searching and Locating (DASL) > >> > >> Last Modified: 04-02-98 > >> > >> Chair(s): > >> > >> Alex Hopmann, <alexhop@microsoft.com> > >> > >> Applications Area Director(s): > >> > >> Keith Moore, <moore@cs.utk.edu> > >> Harald Alvestrand <Harald.T.Alvestrand@uninett.no> > >> > >> Applications Area Advisor: > >> > >> TBD > >> > >> Mailing Lists: > >> > >> General Discussion: www-webdav-dasl@w3.org > >> > >> To Subscribe: www-webdav-dasl-request@w3.org Put subscribe in body > >> > >> Archive: http://lists.w3.org/Archives/Public/www-webdav-dasl/ > >> > >> Description of Working Group > >> > >> The goal of this working group is to define and develop an > extensible > >> DAV > >> Searching and Locating protocol as an application of HTTP. The > >> working > >> group will define protocol elements that enable server-executed > >> queries to > >> locate resources based upon their property values and text content > as > >> expressed by the DAV data model. > >> > >> Problem Definition > >> > >> WEBDAV and HTTP enable client-side searching by defining a simple > set > >> of > >> mechanisms (the PROPFIND and GET methods) to locate those resources > >> meeting > >> client-defined criteria. These mechanisms can be inefficient, do > not > >> adequately deal with some simple content-based queries, and do not > >> take > >> advantage of the advanced querying and caching capabilities of > modern > >> storage systems. > >> > >> The DASL Protocol will enable a HTTP/1.1 compliant scheme for > >> server-side > >> searching to address these limitations. The working group will > define > >> the > >> following for a server-side searching mechanism: > >> > >> - How to express the search: the syntax and semantics of a query > >> - How to focus the query by identifying its scope > >> - How to discover the search capability of a resource. > >> - The syntax for the search results > >> > >> > >> Working Group Scope > >> > >> A generalized search mechanism is a broad problem space. It > >> encompasses a > >> variety of object models, typing schemes, and media. By focusing on > a > >> subset > >> of this space, the problem of locating resources based on property > >> values > >> and text content, the working group will leverage much of the > existing > >> work > >> that has been done on querying under simple property and resource > >> models. > >> > >> In-Scope items include: > >> - typing > >> - comparisons (>, >=, <, <=, !=, ==) > >> - internationalized content > >> - text content matching > >> - dealing with arbitrary XML values > >> > >> Out-of-scope items include: > >> - definitions of well-known properties > >> - server-to-server communication protocols > >> - cross-language comparisons > >> - searching for non-text content (images, video, audio, etc.) > >> - client control of server administration (e.g. indexing) > >> > >> Deliverables > >> > >> The final output of this working group is expected to be two > >> documents: > >> > >> (1) A requirements document, that describes the high-level > functional > >> requirements for DASL, including rationale. This will be an > >> Informational > >> document. > >> > >> (2) A protocol specification describing the additions to HTTP (new > >> methods, > >> headers, request bodies, and response bodies) needed to implement > the > >> DASL > >> requirements. This will be a Standards Track document. > >> > >> Goals and Milestones: > >> > >> Done - Draft Working Group Charter. Establish mailing list, > archive, > >> and > >> homepage. > >> > >> Feb 98 - Produce initial Requirements document. Submit as Internet > >> Draft. > >> > >> Mar 98 - Produce DASL protocol specification. Submit as Internet > >> Draft. > >> > >> Mar 98 - Meet in LA IETF and hold working group meeting to develop > the > >> protocol specification and requirements document. > >> > >> Aug 98 - Meet in Chicago IETF to further develop protocol > >> specification. > >> > >> Aug 98 - Complete Scenarios document. > >> > >> Dec 98 - Create final version of DASL requirements document. > Submit > >> as > >> Informational RFC. > >> > >> Mar 99 - Complete revisions to DASL protocol. Submit as a Proposed > >> Standard > >> RFC > >> > >> > >> > >> > >
Received on Friday, 1 May 1998 15:38:04 UTC