= GSoC 2014 Metadata for GRASS GIS maps and datasets =

|| Title: || '''Metadata for GRASS GIS maps and datasets'''||
||Student Name: || Matej Krejci, [http://www.cvut.cz Czech Technical University in Prague]||

||Organization: || [http://www.osgeo.org OSGeo - Open Source Geospatial Foundation]||

|| Mentor Name: || [http://grass.osgeo.org/wiki/User:Landa Martin Landa], [http://grass.osgeo.org/wiki/User:Madi Margherita Di Leo] ||

|| GSoC proposal: || [http://www.google-melange.com/gsoc/proposal/public/google/gsoc2014/krejcmat/5629499534213120 view proposal]   ||


 == Motivation ==

Current GRASS GIS offers just a poor and out-of-date administration of metadata. The goal of this project is to implement administration of metadata according to the standards of ISO 19115, ISO 19139 and to create a graphical user interface which would allow the user to operate with metadata, such as creating, updating, browsing, searching etc.

 == Timeline ==

|||| timeline from proposal	||newly proposed timeline||
||MAY 1- 7     ||             "Early starts" Study ISO, INSPIRE and FGDC standards	||
||MAY 7 - 14    ||           Getting familiar with GRASS GIS modules code.	||
||MAY 14 - 19     ||         Design of metadata GRASS library||	design GRASS library (in Python) to read / write metadata based on ISO as flat XML files||
||MAY 19          ||           Starting GoSC	x||
||MAY 19- 25    ||           Support of diferent metadata profiles	||design GRASS library (in Python) to read / write metadata based on ISO as flat XML files including profies (XSD validation, Inspire as the show-case)||
||MAY 26 - JUN 16   ||   "Break"(Prepare for bachelor final exam)	||add support for conversion GRASS (current) metadata files <-> XML ISO metadata ||
||JUN 16 - 24       ||       Implement basic library model for command line	||design cmd modules for reading and writing ISO-based metadata -> r.info.iso + v.info.iso (including support for conversion GRASS (current) metadata files <-> XML ISO metadata)||
||JUN 24 - 30     ||          Modules functionality (searching, publishing metadata)||	design GUI for reading and writing ISO-based metadata||
||JULY 1 - 7     ||            Design GUI||	design GUI for reading and writing ISO-based metadata -> g.gui.metadata||
||JULY  7 - 14    ||          Connect GUI library, basic functions||	advanced metadata publishing/searching based on owslib + pycsw||
||JULY 14 - 21     ||        Implementation of search function to GUI	||advanced metadata publishing/searching based on owslib + pycsw||
||JULY 21 - 30    ||        Improve metadata validation using designed GUI	||advanced metadata publishing/searching based on owslib + pycsw -> testing prototype||
||AUGUST 1 - 9    ||       Polishing code	||polishing code||
||AUGUST 9 - 18    ||     Testing and documentation	||testing and documentation||
||AUGUST 18       ||      The end of GSoC	||the end of GSoC||



 == Roadmap ==

 === Week 1 (May 23) ===
studied metadata and tried to find suitable python lib during last three weeks:
 * studied ISO 19115 and EN ISO 19119
  * INSPIRE
  * be advised to leave out implementation of FGDC - just ISO, INSPIRE
 * get familiar with OWSLib and pycsw
  * set pycsw metadata server catalog 
  * handled metadata by OWSLib
 * spent time with design lib based on automated generation of XML from XSD - failed
 * tested suitability of generateDS to generate python object from XML scheme (XSD) 
 * designed library for parse GRASS GIS metadata to XML based on md. ISO
  * parsed metadata from:
   * r.info
   * v.info
   * g.proj
 * designed essential metadata profile for raster and vector maps (based on ISO standard)
  * prepared lib for new update of OWSLib that will be ready during next week. (in contact with author)
 * created new timeline - main changes:
  * create basic metadata management based on creating, editing, validating ISO. (obligatory)
  * create advanced management based on client-server with using pycsw. (optional)