- From: Felix Sasaki <fsasaki@w3.org>
- Date: Mon, 22 Dec 2008 10:36:14 +0900
- To: nack@uva.nl
- CC: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Hello Frank, thank you very much for this analysis. I think what is now missing is knowledge about how the property is actually used in applications of XMP. I will try to gather some feedback on that. Felix Frank Nack さんは書きました: > Dear all, > > please find below the analysis regarding the XMPMM:'history' property. I > addressed the use-cases mentioned in the 'use case and requirements > document' : > http://dev.w3.org/2008/video/mediaann/mediaont-req/mediaont-req.html > > A reminder: this is what this property is all about: > an ordered array of high level user actions that resulted in this resource > > Overall, it seems to me that it would be good to adapt the history > property but it might be interesting to extend the array by not only > keeping the traces collected while generating the item but also those > that were collected while using the media document (here one could think > of splittings for a single user, a group or the public). Just a suggestion. > > Best > > frank > > ----- evaluation ------ > > 5.2 Audiovisual archive as a Cultural Heritage Institution > This is in general a relevant for this property. As particular searches > are suggested the 'history' property can provide additional context > information that relate the search to the 'intention' of the document > when it was created. Also, as the user scenario suggests that a new > document that is currently build needs to be annotated, with a history > property parts of that can be achieved automatically (e.g. by analyzing > and selecting appropriate actions form an action log). > result: the history property is useful. > > 5.3 Recommendation across different media types > The description of the use case states: .... To achieve better user > experience, user history based recommendation is very promising. > This is an example where the history property could be used to not only > collect information while generating the media document but rather > collecting information of its use. The statistics collected can then be > interpreted by the application that searched for the information. > Important here is to define which type of structures are required => > e.g. access time, access duration, access interaction) > result: potentially useful > > 5.4 Life Log > This example use case expands the history aspect and distributes it over > the documents themselves. Based on this use case it can be seen that > some of the information that the current XMPMM:history property > describes a particular but relevant aspect of its history. This use case > would be a good place to study which type of historic data needs to be > captured for determining its proper use in changing contexts and which > of theses aspects should be covered in the history property. > Result: usefull > > 5.5 Access via web client to metadata in heterogeneous formats > Having a history property an additional query could be: > 'Find me all videos which followed the same development steps then the > one I am currently working on". The aim of such a query would be to find > solutions for problems faced in particular working steps within a process. > Result: potentially useful. > > 5.6 User generated Metadata > The history property would be metadata users generate automatically > while working on a document (perhaps without knowing, such as those > currently collected by cameras). The problem is to think about stepes > one normally would not think of to log, e.e. deleting elements (though > important as those describe the intelectual context of the document > development - the interpretation of a media document is always based on > the potential choices we do not see but can imagine - this is one basis > on how humans evaluate the value of a media document). Here it really > depends on the application. > result: potentially useful. > >
Received on Monday, 22 December 2008 01:36:52 UTC