Situation pre Wiki

• No central documentation system in the IT department
• Most of the knowledge esp. about workflows only implicit
  • You have to go and ask
  • People must be available

Wiki paradigm in brief

• Collection of HTML pages (topics)
• In place editing with simple markup (WikiML)
• Easy cross-referencing using WikiWords (CamelCase)
• Revision control

• Mediawiki
• Moinmoin
• TWiki

TWiki praise

• Integrated access control on a per web and per topic basis
• Attachment support
• Tracing of most recent changes
  • Syndication with RSS newsfeeds
  • Email notifications
• Hundreds of plugins and add-ons
• Implementation in Perl based on the UNIX toolbox:
  • Filesystem based
  • RCS for revision control
  • Search using grep
• Powerful markup including macros

• http://www.twiki.org/ twiki.org: http://en.wikipedia.org/wiki/List_of_largest_Wikis 4th largest wiki apart from Wikipedia
• Successfully used by BT, Disney, Motorola, SAP, Wind River, Yahoo, ...

Current status

• Central installation of TWiki since 2 years
  • Substantial growth during the last six month
    • Nevertheless satisfactory performance and usability (since upgrade to recent TWiki release and hardware)
  • Central documentation and coordination tool of the IT department
  • Separate wikis for CBM and Hades collaborations:
    • Virtual Wikis : run on the same server, common codebase
    • Distinct topics, attachments and users

Statistics

• Total users: 270
• New registrations: 50
• Topics: 2600
• Topic views: 90000
• Topic edits: 4000
• Attachment uploads: 800

TWiki pros and cons

Cons

• Recent TWiki vulnerabilities
  • Debian package already secured by hardening patch
• lock, modify, unlock (RCS) instead of copy, edit, merge
  • Content loss due to early lock release (only once?)
• Editor a bit too simple:
• No offline editing

Pros

• Shallow learning curve
• Tables are easily operated thanks to EditTablePlugin and TablePlugin
• Inspirational like a good toy (a geek tool?)

• (T?)Wiki is an excellent toolbox for modelling workflows
  • bottom-up approach

Vacation Calendar

• Out of the box with HolidaylistPlugin:

Name	Jan
			Mo 3	Tu 4	We 5	Th 6	Fr 7			Mo 10	Tu 11	We 12	Th 13	Fr 14			Mo 17	Tu 18	We 19	Th 20	Fr 21			Mo 24	Tu 25	We 26	Th 27	Fr 28			Mo 31

• 20 Oct 2005 - 24 Oct 2005 - Helmut
• 10 Oct 2005 - 14 Oct 2005 - Walter - Hepix SLAC
• 10 Oct 2005 - 14 Oct 2005 - Christo - Hepix SLAC
• 07 Oct 2005 - Hans - ill -
• 17 Oct 2005 - Christo
• 10 Oct 2005 - Sergei
• 21 Oct 2005 - Sergei

Meeting minutes à la TWiki

Search

• Topic name or full-text search, optionally with regular expressions
  • Display of search results may be completely customized
    • may contain partial content from of the search results using pattern matching

• Retrieve a list of existing meeting minutes formatted as a table:

%SEARCH{"MeetingMinutes[0-9]{6}" scope="topic" regex="on" limit="12"
        nosearch="on" reverse="on" nototal="on" 
        header="| *Date* | *Minute taker* | *Latest change* | *Revision* |" 
        format="|  [[$topic][$pattern(.*? (\d+[ .]+\S+[ .]+\d+).*)]]  |  $createwikiusername  |  $date by $wikiusername  |    $rev  |"
}%

Meeting minutes à la TWiki

Templates and Forms

• New minutes are created via a simple webform:

<form name="new" action="%SCRIPTURLPATH%/edit%SCRIPTSUFFIX%/%INTURLENCODE{"%WEB%"}%/">
     <input type="text" name="topic" value="MeetingMinutes%SERVERTIME{$ye$mo$day}%" size="23" />
     <input type="hidden" name="templatetopic" value="MeetingMinutesEditTemplate" />
     <input type="hidden" name="formtemplate"  value="MeetingMinutesForm" />
     <input type="submit" value="create" />
</form>

• The created topic uses the given template

• The meeting participants are listed using the associated DataForms:

| *Name* | *Type* | *Size* | *Values* | *Tooltip message* |
| Participant | checkbox+buttons |  7  | FirstParticipant, SecondParticipant, ... |  |

Meeting minutes à la TWiki

Finalization

• Probably meeting minutes must not be changed after all participants agreed on their content (i.e. ISO 9000)
• TWiki:Plugins/ApprovalPlugin models this workflow

List of server topics

• %SEARCH{...}% again ...

• Topic creation form
  • Special topic template

• InterwikiPlugin: Shortcuts to GSI's hardware database web-frontend
  • GsiDbDetail:lxdv10

List of server topics

CommentPlugin for logbook entries

• %COMMENT{type="logbook"}%

• Comment template definition (UserCommentsTemplate)

%TMPL:DEF{PROMPT:logbook}%
<textarea %DISABLED% name="comment">%MESSAGE%</textarea>
<input %DISABLED% type="submit" value="Add entry"/>
%TMPL:END%

%TMPL:DEF{OUTPUT:logbook}%%POS:AFTER%
| %DATE% | %URLPARAM{"comment" newline="<br />"}% | %WIKIUSERNAME% | 
%TMPL:END%

A light-weight Trouble Ticket System

• %ACTION{closed="10-Oct-2005" due="10-Oct-2005" creator="Main.ChristopherHuhn" state="closed" who="Main.ChristopherHuhn"}% Hepix talk at SLAC

Assigned to	Due date	Description	State	Notify
Christo	2005-10-10	Hepix talk at SLAC	closed	HpcGroup	edit

• %ACTIONSEARCH{...}% for todo lists
• actionnotify cron job

A light-weight Trouble Ticket System

• CommentPlugin
  • CommentPlugin Template to create %ACTION{...}% entries

Assigned to	Due date	Description	State	Notify
WalterSchoen	2005-10-17	Alles kaputt - Created by Christo, 07 Oct 2005 21:28:56	closed		edit

Carpool token management

• Drivers earn one point for each fellow passenger
• Passengers must give away one point per ride

• EditTablePlugin for from based table input

• SpreadSheetPlugin for calculations: %CALC{"$IF( $SUM(R2:C2..R6:C2) = 0, Error! Sum must be 0! , )"}%

• ChartPlugin for the diagram: %CHART{type="bar" table="carpooltokens" data="R2:C2..R6:C2" xaxis="R2:C1..R6:C1" yaxis="on" datalabel="box"}%