In some cases meta-data will be instructions on how to interpret the data. Doug Franklin wrote:
>graywolf wrote: > > >>I do not know exactly how PS uses the term, but -in general- "metadata" >>is information about the data, usually saved in the file. That is all >>the stuff in the file besides the actual photo -in this case- is >>metadata. It seems to have started as a HTML keyword and spread into >>other areas. Actual definition of "meta-" is beside, or after. >> >> > >You probably realize this, graywolf, but for the sake of the people that >aren't computer professionals ... within the computer profession, >especially software, the term "meta" has relatively specific meaning >that's a little hard to put into comprehensible words. Basically, "Meta >X" is "X about (the) X", so, for example, ... > >... a "meta language" is a language that describes other languages, or, >alternatively, and maybe more properly, a language that describes the >properties of languages. > >... "meta data" is "data about (the) data". So in the case of photo >files, that would include comments, EXIF data, IPTC data, and >technically it could be considered also to include such "intrinsic" >information as the length, width, and pixel data size/format. > > > -- When you're worried or in doubt, Run in circles, (scream and shout). -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net