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Database • List
of indicators • Sources
of data • Software for projection •
Description of the system
General description
Information-analytical system consists
of two main components: database and software
for demographic projection. Database of socio-demographic indicators
gives access to the data by countries of the world, regions of the
Russian Federation, and other countries in the dialog mode. The
system contains data on several dozens indexes in their dynamics
and various sections.
Data set significantly varies for different countries and territories.
Hence at the first
step of query formation to the database the territorial section
is required to start searching.
At
the second step of query formation for the database the indicator
is required to specify further work with the system.
At
the third step a query to the database continues formation.
What is required here? To specify the period and country or territory
for indictor's search. If the period is not defined, the default
query assumes the most recent data currently available in the system
If the territory or country is not defined, the system assumes the
default query to all countries. Multidimensional demographic tables
or indicators require additional sections to select. For instance,
if there are data on urban,
rural, and total population in the system, the type of settlement
is to be selected. Besides, some indicators are furnished with the
option giving the opportunity to calculate the relative indicator.
Example is sex
ratio. After pressing the button "Query" the system
performs extraction of the indicator specified from the database
according to the query parameters selected - territory, period,
type of settlement, sex, and other.
At
the fourth step the system displays the result of query in the
HTML format (on a web-page). The top of this page contains the options
of query to IAS: Group of countries (territories), Indicator, Source
of data, Link, Type of settlement, etc. according to the selections
the user made at the previous steps. If the query is to all territories
and the database has a link to a map, this link is placed before
the table with query results (example).
Utilize this link to get a map showing territorial contrast of the
indicator's values. If the query is to one territory and the database
has a link to a graph, at the same place the link to the graph of
indicator's dynamics is put (example).
Click this link to browse the image of graph. IAS gives also the
opportunity to get the image of population age-sex structure in
the form of pyramid. To try it, use
the link to pyramid. If the user needs further data processing
of query results in electronic spreadsheet, utilize the link to
CSV-file. It can be saved on the hard drive of the user's computer
and then imported, for instance, to Excel (";"-separated)
or any other statistical software.
Old-Age
mortality database contains the population and death counts
by country, sex, age 80 and over, birthyear, and calendar year starting
with 1950. Specific feature of this database is the opportunity
of IAS to extract the data according to the parameters specified
and perform calculation "on the fly" of aggregated life
table and other integral indicators: life expectancy, death probability,
population size, number of deaths, median length of life, and median
population age.
Information-analytical system is being steadily modified, added,
and functionally extended. Page "New"
gives the basic information on new functions of the system, extended
opportunities, and new indicators added to the database.
Current status of the database in the
Information-analytical system is placed in the List
of indicators.
See also Main sources
of socio-demographic data for the Information-analytical system.
The information-analytical system is developed under
the support of the Russian foundation
for humanitarian research,
project 04-02-12003-в "Development of information system of
social-demographic data with the Internet access".
Version of page ias_help.php
- 1.4. Last updated 16.02.2006.
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