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tools:metadata:index [2019/01/27 20:12] tilltools:metadata:index [2020/09/27 12:25] (current) – [Which tool to use] till
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-====== Metadata ======+{{fa>info-circle?48&align=right}} 
 + ====== Metadata ======
  
 //Information accompanying numeric data// //Information accompanying numeric data//
  
  
-===== What to use =====+<WRAP group> 
 +<WRAP column 32px>{{fa>key?32}}</WRAP> 
 +<WRAP column 85%> 
 +  * Data without metadata are useless.\\ Both are intrinsically tied to each other. 
 +  * During data acquision, a maximum of information is available.\\ Extracting the relevant information is the real challenge.  
 +  * Metadata should allow processing and analysis routines\\ to acquire a "semantic understanding"
 +  * Metadata should be stored in a structured way\\ and be readable for both, humans and computers. 
 +  * File formats for storing metadata should be platform independent\\ and as simple to use as possible. 
 +</WRAP> 
 +</WRAP> 
 + 
 + 
 +Numeric data without accompanying metadata are useless -- it's really that simple. The very minimum would be axis labels and the information where the data originated from and what they represent (e.g., measurements of a sample with some method or results from some calculations). 
 + 
 +The information available is maximal during data acquisition -- regardless of whether this means experiments or calculations. The real challenge is to reduce the available information to a sensible set of parameters. 
 + 
 +Furthermore, metadata allow processing routines to get a "semantic understanding". This means that the information contained in the metadata needs to be stored and organised in a hierarchical fashion, most probably using key-value stores. 
 + 
 +Metadata should be organised and stored in a way accessible to both, humans and machines. This necessitates a (file) format that is platform-independent and as easy to use as possible. 
 + 
 + 
 +===== Which tool to use ===== 
 + 
 +Note: This section is clearly opinionated. There are definitely other tools available. However, this is the tool the author recommends from own experience.
  
 <WRAP group> <WRAP group>
-<WRAP column 32px>[[https://https://yaml.org//|{{fa>info-circle?32}}]]</WRAP>+<WRAP column 32px>[[https://yaml.org//|{{fa>info-circle?32}}]]</WRAP>
 <WRAP column 76%> <WRAP column 76%>
-[[https://https://yaml.org//|YAML]]\\ Very easy to write manually.+[[https://yaml.org//|YAML]]\\ A machine-readable format that is very easy to write manually (by humans).
 </WRAP> </WRAP>
 </WRAP> </WRAP>
  
 +
 +\\
 +<WRAP half column leftalign><WRAP button>[[..:modular:|← Modular routines]]</WRAP></WRAP>
 +<WRAP half column rightalign><WRAP button>[[..:tests:|Tests →]]</WRAP></WRAP>
  
tools/metadata/index.1548616345.txt.gz · Last modified: 2019/01/27 20:12 by till