What is the Meaning & Definition of secondary Sector

To better understand the economic activity as a whole, used a scheme in which separate the different sectors of the economy. There are three large sectors: primary, secondary and tertiary. This classification is very useful to understand the complexity of the economy and its multiple aspects and variables. The primary sector is one that is dedicated to obtaining raw materials from nature. Includes the following activities: agriculture, livestock, fishing, hunting and, in short, all those who come into direct contact with the natural environment.
The secondary sector is one that, with reference to the products obtained in the primary, develops an industry. Also considered that the construction and mining are the same activities.
The tertiary sector focuses on commercial activity and services.
There have always been these three sectors, and in antiquity the economy had these three branches or trends. But it was from the Industrial Revolution of the XVlll century when the secondary sector began to develop. With the emergence of a new technology (the steam engine is the symbol of this stage) and new sources of energy, the human being put up large factories where all kinds of products were produced. Machinery replaced the labor, which has been gradually declining. Thanks to its ability to transform the industrial sector and its variants have not stopped growing since then. Technology has been the motor of the secondary sector.
An example may be valid to understand the relationship between the three areas. Trees removed wood, which goes to a timber industry where he prepares furniture that ultimately ends in a commercial establishment where the consumer can purchase a good (a piece of furniture for the kitchen, for example).
The economy of a country to work properly and within parameters balanced, analysts agree on the importance of the secondary sector. Key is in many ways: for exports, employment, research, etc.
The secondary sector is permanently evolving and today it is claimed that we are in a post-industrial stage, where the traditional industry has increasingly a lower relevance. The industry is no longer the main focus of economic activity, but they are services the new engine. This situation is framed within globalization, the current model of the economy.