Execute a job automatically when a source table got updated

Hi Experts

     I have a requirement in SAP Data Services, in my job Source connection is MySQL and Target is SQL Server, now when the source table got updated or rows deleted my job has to execute automatically. how can i do this.. how can a Data Service job knows that source table was modified..and to execute the BODS Job.

Can anyone suggest me the steps.

Thanks in advance

PrasannaKumar