The documentalists at Strasbourg astronomical Data Center treat publications to create content for the SIMBAD and VizieR databases. The publication treatment is quite complex and the ingestion process needs to be described. This requires precise knowledge and mutual support among the documentalists in interaction with computer engineers and astronomers. Documentalists at CDS have thought of an adapted way to organize and enrich their internal documentation. The “TWiki” collaborative space, recently reorganized and enriched, regroups documents about agreed-upon procedures and methods, directions for use of the software and tools, shared problems/solutions. It is a tool for sharing, preserving and enriching the common knowledge of the whole staff.