the article above further states: “Decision support systems (DSS) use data from management information systems (MIS), transaction processing systems (TPS) and office information systems (OIS)”....

the article above further states: “Decision support systems (DSS) use data from management information systems (MIS),
transaction processing systems (TPS) and office information systems (OIS)”. Briefly explain the purpose of an
organisational decision support system (ODSS) and provide FOUR (4) main characteristics of this system.