SYSTEMS DEVELOPMENT ANALYSIS
APPLICATION DEVELOPMENT PROCESSES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Execution halts and an error message is added to the log file
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After an error message is presented to the user, execution continues
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The rule is added to the rules cache
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A message is sent to the user, the rule is added to the rules cache, and processing is paused pending further action from the user.
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Detailed explanation-1: -If a rule marked as Blocked is selected during rule resolution, an error message is logged and execution continues.
Detailed explanation-2: -Contrasting blocked and withdrawn rules However, a blocked rule may block other rules in any RuleSet, and a blocked rule stops rule resolution from finding rules in higher Applies To classes. A withdrawn rule affects other rules only in one RuleSet and one Applies To class.
Detailed explanation-3: -Inputs to the rule resolution algorithm User’s ruleset list. Class hierarchy of the rule in question. Circumstances such as the value of a property, or time and date restrictions. Availability of the rule.
Detailed explanation-4: -Rule caching A rule cache is an in-memory collection of recently used rules. Pega Platform maintains rule caches to improve application performance by avoiding unnecessary rule resolution and database interactions. When an application requests a rule, Pega Platform runs the rule if it is in the cache.
Detailed explanation-5: -A withdrawn rule is a rule that has the availability property pyRuleAvailable set to Withdrawn. A withdrawn rule is never selected by rule resolution. In addition, other rules that match this rule on the following fields are also hidden from rule resolution: Rule type.