Qlcl bao cao

Computers and the Internet in sensory quality control

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CONTENTS:

• Abstract

1. Introduction

2. The role of Internet

3. Availabe Sofwares

4. Development of a sensory quality program

5. Implementing a sensory qc system

6. An example of a computerized sensory QC system

Abstract

• Computer technology is changing rapidly

• Quality systems can be constructed from simple programs through to sophisticated systems

• Provides an overview of the available tools, a starting point for computerizing sensory QC

1. Introduction

• Most research facilities have: Automated their collection of sensory data Connected it to statistical analysis

• Make management decisions The reduction in cost of hardware The widespread of personal computers

• Sensory Analysis can be used to make management decisions

1. Introduction

• Computers are merely tools, not a solution in themselves

• “Automation of accounting systems improved good accounting practices, but never created good accounting by itself”

• It is only good when increase a benefit

2.The role of Internet

• The information superhighway Messages can be to any other connected device

on the planet• The use of electronic mail, e-mail,has become

universal.• The documents are attached in a common file-> many viruses have been spread


• Internet,the living rooms of the world

(simple electronic billboards, Ads,..)


• A benefit always have risk attached.• battle between:

efficiency > < simplicity

complexity > < comprehensiveness


• The simplest and most profound application for QC is the electronic spreadsheet.

• Excel program dominates this market


The ability :• create a record of responses• accumulate data over time • analyze the data for trends and report the

results graphically


• There are many programs for quality that are web-based

• The inexpensive or ‘‘freeware’’ applications have limited features

• The expensive applications are customized to meet end user specifications


WebSPC• a secure web application designed to share

statistical process control information

http://www.hertzler.com/


QualTrend• Lets users get at any quality data from diverse

locations• Transform critical data into key performance

indicators• Production from several plants can be

compared and controlled simultaneously.


http://www.winspc.com)


• NWA Quality Analyst Web : (http://www.nwasoft.com)

• Quality Navigator: (http://www.guardess.com)

• Statit e-QC:

(http://www.statware.com).

http://www.nwasoft.com/

http://www.guardess.com/

http://www.statware.com/


There have been several excellent publications

Including:• the landmark publication of Munoz,Civille, and

Carr (1992) • the textbook chapter by Lawless and Heymann

(1998).

• A similar systematic approach• Guidelines that establish good standards of

practice for sensory QC• Make a list of steps that are generic and academic

BUT

How do we put sensory quality control into practice?



A presentation :• Marianne Gillette ,Jacqueline,Beckley at the

Institute of Food Science meeting in 1992

Emphasized:• the practical aspects of In-Plant Sensory

Quality Assurance

They recognized that for a sensory Q program to work at the plant level

• Meet the sensory objectives• Be acceptable to the management of the

company and its suppliers


• Many of these points are of key strategic importance in planning the implementation

• Extension of a basic sensory QC program into

other areas of quality


5. Implementing a sensory QC system

A Sensory Quality Assessment system was developed in the UK

Supplier & retailer : Develop a standard, objective approach to

product sensory quality measurement

Train a course to• Develop an objective approach to product

quality measurement• Understand how to achieve valid sensory

information • Practice setting up the quality attribute scoring

system


• Both CCFRA and the Leatherhead Food Research Association have trained many companies

• “How to develop sensory quality systems tailored to their needs”



Training program• The framework for the company • Work with customers to implement a system

that monitors results• A method for measuring improvement and

compliance.

6. An example of a computerized sensory QC system

• A collaborative project between CCFRA and Compusense

Þ a general solution that can automate the sensory QC process

Compusense QC1

6. An example

• Allows users to perform sensory QC on products using trained QC assessors

6. An example

• The main Compusense QC software can be installed and run from a network server

- Each QC project contains : 1 product with a set of attributes ranges quality of each attribute

6. An example

• Create project template for each product type.

- This template includes:

The questionnaire, panelists and quality ranges for each attribute.

6. An example

• When all results are collected, the data is analyzed

• A QC grade is determined for each attribute• Quality ranges are set when the project is

made

• If the panelist scores the attribute in an unacceptable range

• They can automatically be presented with a comment question

• They provide further description, or a multiple choice question

6. An example

o The main task of Compusense QC: • Analyze the panelist data according to the

defined quality ranges• Render a quality decision or grade for each

attribute

6. An example

6. An example

6. An example

The QC Manager’s role is:• Review the individual attribute grades• Evaluate which attribute grades have more

weight in the overall product quality• Enter an overall QC decision for the product

• MORE DETAILS :

+ The data can be exported to other programs

+ The data collected by each of the panelists for each of the attributes kept as a record of the sensory evaluation.

6. An example

6. An example

+ The data from individual batches accumulated in a database be able to analyze trends over time.

+ “Scaled for large and small enterprises and allows continuous improvement and development”

THE END

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