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Transcript of Value Analysis
Need Analysis and Orientation of the action
: USA - GENERAL ELECTRIC
: FRANCE - Specific Industries
: Improvement and globalization of the methodology
: Creation of l'Association Française d'Analyse de la Valeur (French Association for Value Analysis)
: Publication by the AFNOR of a collection of sandards
Risk to get away from customers need
Continuous improvement process
Respect of customers need
Any product (new or already created)
Whole of part of a product
, the purpose of the product
Specify the means, the
of the problem
Define a multidisciplinary
To have a pencil to
on a whiteboard to
respecting the health
of the user
Chalks, various markers, pens
Analyzing the existing
The ink dries on contact with air
The tip does not permit to control the regularity of the line thickness
Cumbersome: unpleasant to take
Ex : NF ISO 12757 - 1
The user would be willing to pay more for a "green" product, non-toxic and recyclable
The product should fit easily into kit school-type
It should not be covered with ink dust when it is placed in the whiteboard pen holder
Estimated cost of study / prototyping: Rs.10Lakhs
Cost: Rs.50/ marker
Production Amount: 1 million units / year
Amortization of study over six month of production
Step 1: get an
Use of a rigorous methodology to identify all the functions that the product
must fulfill in all phases of life:
End of life (or recycling)
=> Example of the method of interactions (or
For each Link :
- What is or what are the function(s) the product should satisfy regarding each element of its surrounding environment ?
The list of functions often presents disordered functions, redundancies, etc., hence the need to classify and order:
Group functions by family
=> Example: functional tree (or
). It includes functions constraints (see step Need Analysis)
(control) the validity of the functions
Identify unnecessary functions or functions which may be in the near future
Why is the function existing?
What can make it evolve or disappear?
What is the risk of progression? the risk of extinction?
Objective: To identify the main, secondary, and esteem functions
Assign a weight of importance (in%) for each function
in response to the initial need
Subjective assessment obtained by consensus
FAST diagram is obtained
What are the elements to ensure that the function is completed?
For each function, define:
The assessment criteria
Step 6: Production of
The Functional Specifications is the document by which the applicant expresses his needs in terms of functions. It includes:
The need analysis and action orientation
Functional analysis (hierarchical valued and characterized Functional Specifications)
Step 3 :
Search for solutions
Step 4 :
Purpose of the process
The evaluation of the solution passes through the establishment of a
comparative cost / value
for each function of the functional Specification :
Estimate of the cost required for the implementation of each function (based on the cost of materials, labor, maintenance, energy costs, etc.).
For each function: calculation of cost / Value ratio
Highlighting priority functions (high ratio)
Improvement proposal (s)
for the identified functions.
"The value analysis permits to design, develop or search for a product providing, the best cost, and user satisfaction" (NF X 50-153)
The Value Analysis it's making sure to give the
MF1 : Write continuously on the board
CF1 : Fit in the hand
CF2 : Feel light in weight
CF3 : Should not be damage if put in the mouth
CF4 : Fit in the pen holder
CF5 : Be aesthetic
CF6 : Resist to its environment ( air, temperature, humidity, light ...)
CF7 : Should give the possibility to give different thickness while writing
CF8 : Should not hurt the user
CF9 : Should not be toxic
CF10 : Should be erasable
CF11 : Should Last
MF : Main Function
CF : Constraint Function
The Bull Diagram
The objective is to keep at any time a global vision of what we have done and what we still have to complete. For this we use two tools :
- The Pert Diagram
- The Gantt Chart
The Pert Diagram
The Gantt Diagram
With these diagrams you'll get an overview of your project and you'll identify some problems before they appear
From the Pert Diagram we give a "calendar" of the actions to do to complete the project.
It's important to identify the major deadline and to fix milestones.