An operational assistance server device, method and computer readable article of manufacture for providing operational assistance to a user operating an application is provided. The operational assistance server device includes: an operation table; an operation table storage unit for storing the operation table; an user's operation history; an operation sequence generation unit for generating the operation sequence; an operation record storage unit; operation subsequences; an appearing-operation-sequence extraction unit for extracting appearing operation sequences from the operation subsequences; and an appearing-operation-sequence storage unit for storing the appearing operation sequences extracted by the appearing-operation-sequence extraction unit; where the appearing operation sequence appears at a frequency higher than a predetermined value. The method and computer readable article of manufacture storing the method includes the steps of: generating the operation sequence; storing the generated operation sequences; extracting the appearing operation sequences; and storing the extracted appearing operation sequences.