User talk:Arvind140285

PHYSICAL CONTROL A PHYSICAL MODEL OF AN ENTERPRISES ARE ORGANIGED IN A HIERARCHICAL MANNER. LOW LEBEL GROUPINGS ARE COMBINED TO FORM HIGHER LEBELS IN THE HIERARCHY. IN CASE OF TWO LEBEL OF GROUPINGIN THE LEVEL MAY BE INCORPORATED IN TO ANOTHER GROUPING AT THAT SAME LEBEL.THE FOUR LAYERS REFERS TO SPECIFIC PROCESS TYPES.