==== Data Writer ==== [[ddsf:public:guidebook:06_append:glossary:start| Return to Glossary ]] An [[ddsf:public:guidebook:06_append:glossary:e:entity|entity]] attached to a [[ddsf:public:guidebook:06_append:glossary:p:publisher|Publisher]] bound to publish samples from only one [[ddsf:public:guidebook:06_append:glossary:t:topic|Topic]] and therefore exactly one data type, providing type-safe operations to write/send data. The Topic must be created before the Data Writer. Source: [[https://istkb.adlinktech.com/article/vortex-opensplice-dds-glossary/ | OpenSplice Glossary]]