Exam 8: Analyzing Systems Using Data Dictionaries

Give two examples of elements that can be found in a data dictionary; one that has a standard length and one that does not have a standard length.

A discrete data element is one that has certain fixed values.

Which of the following is included in a physical data structure?

An alias for each element is another name for the data used by different users in different systems.

The data dictionary is a reference work of data about data.

________ data structures include additional elements necessary for implementing the system.

When a V is used as a formatting character for an element, it indicates where the decimal point should occur, even though the actual decimal point is not included.

Elements on a data flow going into or out from a data store:

Data structures are described using ________ notation.

A default value is one that never changes on a report.

List three of the five main ways in which to use a data dictionary.

Data stores are used to store:

________ is usually the first component to be stored in the data dictionary.

Describe the difference between base elements and derived elements.

The advantage of using XML to define data is that, in the XML format, data are stored in a pure text format and not dependent on any proprietary software.

XML is used when other systems or external organizations use the same software.

There are three standard formats for mainframe computers: zoned decimal, packed decimal, and binary.

Unified modeling language (UML) is a language that can be used to exchange data between businesses.

XML is a way to define, sort, filter and translate data into a universal data language.

All derived elements must be stored on a data store.