Data are set of values of qualitative or quantitative variables;
restated, pieces of data are individual pieces of information. Data is measured,
collected and reported, and analyzed, whereupon it can be visualized using
graphs or images. Data as a general concept refers to the fact that some
existing information or knowledge is represented or coded in some form suitable
for better usage or processing. Data can exist in a variety of forms – as
numbers or text on pieces of paper, as bits and bytes stored in electronic memory,
or as facts stored in a person’s mind. Strictly speaking, data is the plural of
datum, a single
piece of information. In practice, however, people use data as both the singular and plural form of
the word.
restated, pieces of data are individual pieces of information. Data is measured,
collected and reported, and analyzed, whereupon it can be visualized using
graphs or images. Data as a general concept refers to the fact that some
existing information or knowledge is represented or coded in some form suitable
for better usage or processing. Data can exist in a variety of forms – as
numbers or text on pieces of paper, as bits and bytes stored in electronic memory,
or as facts stored in a person’s mind. Strictly speaking, data is the plural of
datum, a single
piece of information. In practice, however, people use data as both the singular and plural form of
the word.
Raw
data, i.e. unprocessed data, is a collection of numbers, characters; data
processing commonly occurs by stages, and the “processed data” from
one stage may be considered the “raw data” of the next. Field data is
raw data that is collected in an uncontrolled in situ environment. Experimental
data is data that is generated within the context of a scientific investigation
by observation and recording.
data, i.e. unprocessed data, is a collection of numbers, characters; data
processing commonly occurs by stages, and the “processed data” from
one stage may be considered the “raw data” of the next. Field data is
raw data that is collected in an uncontrolled in situ environment. Experimental
data is data that is generated within the context of a scientific investigation
by observation and recording.
On
the other hand, Data is referred to as distinct pieces of information, usually formatted
in a special way, while Information can be described as Data that is (1)
accurate and timely, (2) specific and organized for a purpose, (3) presented
within a context that gives it meaning and relevance, and (4) can lead to an
increase in understanding and decrease in uncertainty.
the other hand, Data is referred to as distinct pieces of information, usually formatted
in a special way, while Information can be described as Data that is (1)
accurate and timely, (2) specific and organized for a purpose, (3) presented
within a context that gives it meaning and relevance, and (4) can lead to an
increase in understanding and decrease in uncertainty.
In
database management systems, data files are the files that store the database information,
whereas other files, such as index files and data dictionaries, store
administrative information, known as metadata. Metadata describes how and when
and by whom a particular set of data was collected, and how the data is
formatted.
database management systems, data files are the files that store the database information,
whereas other files, such as index files and data dictionaries, store
administrative information, known as metadata. Metadata describes how and when
and by whom a particular set of data was collected, and how the data is
formatted.