These are computerized systems that perform and record daily routine transactions necessary to conduct the business. An example is a point of sale system. Transaction processing systems serve the operational level of an organization. The inputs to a TPS are transactions and events. The processing consists of listing, sorting, merging, and updating. The outputs are detailed reports, lists and summaries. TPSs specifically serve operational personnel and supervisors. They enable supervisors to make structured decisions the reports they provide e.g. a decision to restock based on the stock levels report.
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