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Decision Table Defined:. A decision table is a table composed of rows and columns, separated into four separate quadrants. Construction Rule for DT. 1. Identify the of conditions that may affect the decision. 2. Identify the corresponding actions that may be taken in that decision situations.
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Decision Table Defined: • A decision table is a table composed of rows and columns, separated into four separate quadrants.
Construction Rule for DT • 1. Identify the of conditions that may affect the decision. • 2. Identify the corresponding actions that may be taken in that decision situations. • Determine the no of columns ( 2 Raised to power n) • Fill Condition Entries ( Half Y and Half N) • Check the condition entries for inconsistancy,contradictions, redundancy • Use(X) for action being taken
Q1 • A Mobile phone operator is running a promotional campaign. According to scheme the customer who make calls worth Rs.1000 in any calendar month is allowed 50% on all subsequent calls made to its own network during that month. Construct DT depicting the functioning such program.
Conditions: • Bal >=1000 • Current Billing Month • On net calls Actions: • 50% Disc • No Disc
Q 2 • Vibrant traders is medium sized Co. the Co is in the process documenting payment procedures. The management has formulated following rule • All cheques should be signed by signitatories • Cheques up to Rs.100000 may be signed by two mgrs. • Cheques up to Rs.1.0 Million should be signed by at least one director. • Cheques of more than Rs.1.0 Million should be signed by at least one director Prepare DT to assist in the verification of cheques.
Types of Dec Tables • Limited Entry DT • Extended Entry DT • Mixed Entry DT
LEDT • In LEDT each condition is posed as a question requiring Y or N or immaterial answer and each action is taken or not. • All DT already discussed are LEDTs
EEDT • In EEDT the conditions and actions the exact cond & action being specified in entry quadrant. • MEDT • Limited and extended with one table