systems play a key role in helping organizations achieve goals, which are set forth in a(n) statement. Computers can be used by people at all levels of an organization. Workers use information systems to produce and manipulate information. Managers depend on information systems to supply data that is essential for long-term planning and short-term tactical planning. Transaction systems provide an organization with a way to collect, display, modify, or cancel transactions. These systems encompass activities such as general accounting, inventory tracking, and ecommerce. information systems typically build on the data collected by a TPS to produce reports that managers use to make the business decisions needed to solve routine, structured problems. A decision system helps workers and managers make non-routine decisions by constructing decision models that include data collected from internal and external sources. A(n) system is designed to analyze data and produce a recommendation or decision based on a set of facts and rules called a(n) base. These facts and rules can be written using an expert system shell or a programming language. A(n) engine evaluates the facts and rules to produce answers to questions posed to the system. Using a technique called logic, these systems can deal with imprecise data and problems that have more than one solution.