This is the answer from my Understanding for your question. In Magento There are three code pools,

core //magento codes not custom
community //custom module but community based
local //custom module pool,you can create your module in this pool.

local is the pool for custom module or overwriting core module in Magento.

This is the answer from my Understanding for your question. In Magento There are three code pools,

core //magento module, not custom module
community //custom module but community based
local //custom module pool,you can create your module in this pool.

local is the pool for custom module or overwriting core module in Magento.

In Magento There are three code pools,

core //magento codes not custom
community //custom module but community based
local //custom module pool,you can create your module in this pool.

local is the pool for custom module or overwriting core module in Magento.

This is the answer from my Understanding for your question. In Magento There are three code pools,

core //magento codes not custom
community //custom module but community based
local //custom module pool,you can create your module in this pool.

local is the pool for custom module or overwriting core module in Magento.