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Re: Revised charter

From: Alex Hopmann <hopmann@holonet.net>
Date: Fri, 1 May 1998 13:40:15 -0700
Message-ID: <016a01bd7541$597b0380$03fe3b9d@alexhop1.dns.microsoft.com>
To: "Rick Henderson" <rickh@netscape.com>
I think this is in there in the section on "out of scope items":
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) 

Alex Hopmann

    -----Original Message-----
    From: Rick Henderson <rickh@netscape.com>
    To: Alex Hopmann <hopmann@holonet.net>
    Cc: www-webdav-dasl@w3.org <www-webdav-dasl@w3.org>
    Date: Monday, April 13, 1998 10:23 AM
    Subject: Re: Revised charter
    
    
    Alex, 
    Weren't we going to say something about not attempting cross-language queries 
    and sticking to regular internationalization? 

    Other than this question, the charter looks good to me. 

    --Rick 

    Alex Hopmann wrote: 

        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

      
-- 
*************************************************
Rick Henderson            (Netscape)(650)937-3152
rickh@netscape.com
*************************************************
      
Received on Friday, 1 May 1998 16:42:24 GMT

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