Democracy has taken a number of forms, both in theory and practice. Some varieties of democracy provide better representation and more freedom for their citizens than others. However, if any democracy is not structured so as to prohibit the government from excluding the people from the legislative process, or any branch of government from altering the separation of powers in its own favour, then a branch of the system can accumulate too much power and destroy the democracy. - wikipedia
Several variants of democracy exist, but there are two basic forms, both of which concern how the whole body of all eligible citizens executes its will.
One form of democracy is direct democracy, in which all eligible citizens have active participation in the political decision making, for example voting on policy initiatives directly - books.google.com
In most modern democracies, the whole body of eligible citizens remain the sovereign power but political power is exercised indirectly through elected representatives; this is called a representative democracy.
The following kinds of democracy are not exclusive of one another: many specify details of aspects that are independent of one another and can co-exist in a single system.
# Non-governmental democracy
Aside from the public sphere, similar democratic principles and mechanisms of voting and representation have been used to govern other kinds of groups. Many non-governmental organisations decide policy and leadership by voting.
Most trade unions and cooperatives are governed by democratic elections. Corporations are controlled by shareholders on the principle of one share, one vote - sometimes supplemented by workplace democracy. Amitai Etzioni has postulated a system that fuses elements of democracy with sharia law, termed ''islamocracy''.