http://172.19.1.196:8983/solr/secweb/select?q=Illumination challenge OR "illumination challenge" OR "lighting Challenge" OR "lighting Difficulty" OR "brightness Challenge" OR "brightness Difficulty"&wt=json&indent=true&facet=true&facet.field=key_filetype&facet.field=key_sitemap&facet.field=system_name&facet.field=key_keywords&hl=on&hl.fragsize=200&hl.fl=id,title_th,searchcontent_th&defType=edismax&qf=searchcontent_th&qf=id&qf=title_th^1000000&pf=title_th~5^1&pf=searchcontent_th~5^10000&ps=2&mm=100&qf=title_th_default&fq=key_sitemap%3Ainvestor&start=0&rows=10
cases representation to companies on behalf of the governing body. In order to gain full value from this process, governing bodies need actively to oversee it and to have relevant skills to challenge and