ch.3 quiz – Flashcards
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Business rules and policies are
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not universal
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Can polices and rules of an organization change over time
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yes
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Is the process of change in rules and polices quick
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no usually slowly
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What is the acronym to remember "What is your job as database analyst"
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u represent unambiguously implementation.
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What does u represent
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understand those rules that govern
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What does represent mean
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represent those rules
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What does unambigurously mean
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so that they can be unambiguously understood by information systems developers and users.
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What does implement mean
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implement those rules in database technology
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Do date models represent all business rules
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no they don't need to
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What represents all business rules that must be enforced through information systems
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data models along with associated documentation and other types of information system models
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A business rule
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is a statement that defines or constrains some aspect of the business.
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What is the intended use of a business rule
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to assert business structure or to control or influence the behavior of the business.
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Business rules are also referred to as
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integrity constraint
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What does integrity constraint refer to
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is somewhat limited in scope, usually referring to maintaining valid data values and relationships in the database.
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Does the term business rule have a more limited or broader scope
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broader scope
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What is the broad scope of business rules
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so that is includes all rules that have impact on the databases in an organization (standards and procedures).
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Is business rules sometimes referred to as a new paradigm
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yes
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Can enforcement of business rules be automated through the use of software that can interpret the rules and enforce them using integrity mechanism of the database management system
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true
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What is possibly the premise with the greatest potential benefit
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that business rule are highly maintainable has conciderable power when coupled with automation.
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We are concerned with business rules that impact only an
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organizations data base
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These characteristics will have a better chance of being satisfied
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if a business rule is defined, approved, and owned by business, not technical, people.
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You as the database analyst
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facilitate the surfacing of the rules and the transforamation of ill-stated rules into ones that satisfy the desired characteristics.
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Business rule appear (possibly implicity) in
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description of business functions, events, policies, units, stakeholders, and other objects.
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What are business ramblings
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statements that are vague or imprecise.
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What does declarative mean
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a business rule is a statement of policy, not how policy is enforced or conducted, the rule does not descrive a process or implementation, but rather describes what a process validates.
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What does precise mean
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with the related organization, the rule must have only one interpretation among all interested people, and its meaning must be clear.
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What does atomic mean
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a business rule marks one statement, not several, no part of the rule can stand on its own as a rule (that is, the rule is individisible, yet sufficient).
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What does consistent mean
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a business rule must be internally consistent and must be consistent with other rules.
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What does expressible mean
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a business rule must be able to be stated in natural language, but it will be stated in a structured natural language so that there is no misinterpretation.
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What does distinct mean
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business rules are not redundant, but a business rule may refer to other rules
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What is business oriented
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a business rule is stated in terms businesspeople can understand, and since it is a statement of a business policy, only business people can modify or invalidate a rule, thus , a business rule is owned by the business.
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Precise rule are formulated from
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an interative inquiry process.
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Data objects must be named and defined before they can be
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used unambiguously.
