Decision tables are useful for identifying procedures and summarizing the decision making process for one step of a system.
A decision table is a brief visual representation for specifying which actions are to be perform depending on given conditions. These tables are popular in information processing and are used for testing, e.g., in cause and effect graphs.
Decision tables are best suited for business rules that have multiple conditions. Also, it is a highly effective tool utilized for both complex software testing and requirements management. Through this table, you can check and verify all possible combinations of testing conditions.
Hence, decision tables are considered very useful.
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