ACC 442 Lecture Notes - Lecture 2: Business Logic, Software As A Service, Information Technology Management
T/F: A concatenated key is a key that consists of two or more fields that together uniquely define a
record.
TRUE
T/F: A best of breed ERP solution is one that mixes and matches modules from more than one ERP
vendor.
TRUE
____________ is the industry term that means paying for software on a periodic basis.
Software as a Service (SaaS )
The type of data in an ERP system that is the result of business events in known as __________ data.
Transaction
____________ requires the programmers rewrite the underlying code or develop extra code to make
the software perform in ways the publisher had not originally intended.
Customization
Explain the differences between mainframe, two-tier, and three-tier architectures.
Mainframe architecture means that all computing intelligence is within a central host computer that
processes data and displays it on a "dummy terminal."
in two-tier architecture, the server is often called the back-end application, and the client is called the
front-end application.
Three-tier client-server architecture places one or more application tiers between the client tier and the
data access tier. Each tier only contains code that belongs in that layer. Therefore, the presentation logic
resides in the presentation tier, the business logic in the application tier, and the data access logic in the
database tier.
What are the advantages of storing data in a relational database?
Since data is only entered once and shared across departments and business units, the potential for
errors and data duplication is reduced. Modern RDBMS provide many features, including transaction
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