Eight Quantitative Tools of Quality Control in Manufacturing Process

Answer 1: The eight quantitative tools of quality control that used in a
manufacturing process are here in below:
 Breakdown structure in case of work.
 Estimates regarding time and precedence relationships.
 Chart regarding Gantt
 Network Diagram
 CPM i.e Critical Path Method
 Tradeoff of time and Cost analysis
 PERT i.e Program Evaluation and Review Technique
 Management of Resources.
1) Break down structure in case of work: It is an approach or way to
work which defines how a particular work to may be divided into
different sub projects, different task and different activities. This work
break down structure is a very good approach to organize the work
and design it .It is one of the most fundament form of organizing the
work. In this structure, the work is divided into different packages and
allocated to a single person or a group of people.
2) Estimates regarding time and precedence relationships: The
series of activities to be performed within a project shall be determined
and the manner in which it is to be performed shall also be
determined. The relationship with each series of activity has to be
clearly identified. Proper care also needs to be taken in order to
estimate the completion time of each activity. The schedule of the
project cost of the resources required and the time required for the
completion of each and individual series of activity.
3) Chart regarding Gantt: It is nothing but a horizontal bar statement,
which depicts the time, required for the entire project. The name Gantt
Chart is named after Henry Gantt, who actually developed the chart in
the year 1910s.The Gantt chart with different color codes make it easy
to analyze and track the performance of the project while it is in
progress.

4) Network Diagram: It is a diagram based on arrows, circles and
nodes. The arrows and circles are drawn in order to create a sequence
of activities within the project. There are two ways in which network
diagram can be drawn like:
Activity on node approach: This is the form in which each activity is
depicted in circles and the circles are connected with arrows.
Activity on arrow approach: This is the form in which each activity
of the project is represented through arrows and the nodes acts as
beginning and ending points.
Diagram on Activity on Node and Activity on Arrow approach:
5) Critical Path Method: It is an algorithm in order to schedule the
activity within the project so that the outcome for the project can be attained
in the fastest and efficient manner .The critical path for the project can be
defined as the path for which the project can take the maximum time or the
longest time for completion. It can be called as a bottleneck path or the
constraint in completing the project. Moreover, the slack in the project can
be defined as the quantity of flexibility that a project has in order to schedule
a particular activity within that project. The algorithm also involves a
computation of four parameters for each activity, which are described here
in below: