What?

• Collection of functions which are executed in the order they are added
• An Object that helps us to add and remove function to functions collection
• Provides a connector to co-oridante each collection set

Why?

• We need to execute few task based on some condition and task after that based on another logic, this Library will facilitate that
• for example, i want to execute all the functions that collect data from various sources followed by data cleaning task functions..