Software Tools for the Food Industry

   

   An eNewsletter for Food Processors

November  2003      •   Special  Edition        •       US  Food Processors

In This Issue:

SPC: Why it's important

Project Cost Justification: Getting Approval for your projects

Ask the Expert: Can SPC identify problems in real time?

 

 

 

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Visit our booth at the International Poultry Exhibition

January 26-30 2004

Booth 4904


 
Statistical Process Control:

Why it's important and how to achieve it

 

More than ever before, processors work in a tightly woven supply chain. From raw material to finished consumer goods, they must demonstrate that their products meet prescribed quality standards.


As part of this framework, it is necessary for companies to collect quality data, analyze it, and feed this information back into their process to reduce variation and improve efficiency.
As quality moves from an after-the-fact detection of errors to actively managing process variation, the food industry is evolving from inspection to process control models to determine the stability of production processes and their capability to meet expected performance. The most effective tool for this task is Statistical Process Control (SPC).


SPC enables you to reduce variation in a process whether it's an extruding or filling operation, heating or even calibrating gauges and scales. All processes -- whether they are sampling techniques or product production -- have a certain amount of natural variation that is statistically predictable.

Why SPC?
Statistical process control offers huge potential for bottom-line savings by reducing waste, increasing yields and improving your company's ability to meet customer specifications. Statistical process control software allows operators to avoid undesirable variations in online production. It helps determine if production is stable and predictable, if yields can be increased economically, if production costs could be reduced, or if maintenance is excessive.


How SPC Works: A Case Study
The case of a poultry production operation that needs to control bird temps illustrates how SPC works. Carcass temperature on exit from the chiller must be 40 degrees F or less to comply with the USDA regulations. Sampling sets of birds exiting the chiller, and analysing the information, not only affects food safety, but yield as well. Correcting problems when a trend is identified prevents costly failures, and also improves efficiency.


 

How do I achieve SPC?
What systems are needed to develop and achieve high levels of quality monitoring and reporting?

Data Collection
Paper methods can’t keep up with the volume and reach of reporting requirements. Paper methods maximize error rates, transcription errors, and related problems. They slow the rate of data collection plus data is not immediately transferable.

Data Management
You need a database system to collect, organize, and retrieve data. Commercial systems such as MES (Manufacturing Execution Systems) are standard databases with layers of programming.

Analytical and Charting
You need to know if the process is stable and capable of meeting specifications. Methods such as SPC are the fundamental tools for these purposes. This capability needs to be integrated into your database systems.

Reporting
You need to get the information to all users, whether it is between your vendor and your company, from section to section within your plant, or providing SPC deliverables with the lots you ship to your customers.

Success with SPC

To meet the above requirements, you need a company with experience and know how to make it work. CAT2 software tool series collects data from your plant floor operations through its manufacturing executions systems designed specifically for poultry and meat operations. CAT2 software pinpoints whether your products are being produced within specifications, if not where the problems lie, and providing that data with easily understood control charts and graphs.

In the modern production era, quality, data analysis, reporting, and the resulting actions involve more than just the quality department. It is a total enterprise function. In addition to process management, these systems must also support continuous process improvement, a critical component of your future success.

 

 

 
 

Project Cost Justification

You've identifed a system that will improve quality. Here's how to gain support for your proposal.

 


Is quality really free?

Why, then, is management sometimes reluctant to approve acquiring systems that can lead to world-class quality? One reason is payout vs. payback. Up-front cost is real, while return on investment is speculative. Another reason may be inadequate knowledge. People with decision-making power are not necessarily expert in statistics, automation or production. Maybe they're suspicious, disappointed by earlier strategies and technologies that fell short of expectations.

Some people simply resist change. Why inflict something different on those who are content with what is familiar? Well, here's why. Nearly 70 percent of part defects originate in design. About 30 percent of defects remain subject to production process control. If world-class quality is your objective, you must become able to detect inherent flaws and to control the process. Because quality begins with design and flows all the way through to shipment, it is necessary to involve people at many levels.

So, those intending to champion a new system that will cost money and change accustomed practices must present a convincing case to management and the corporate bean counters, as well as the people operating the new system and everyone using the information it generates.

Scope magnifies the challenge. A quality system that focuses only on one set of tools may be relatively easy to "sell" and implement. Compare this with an enterprisewide system operating in multiple areas of multiple plants and generating an information cross-flow bridging boundaries of geography, personal responsibilities and objectives. A quality system of this scope will have a network of stakeholders stretching from machine operators and supervisors to quality directors, cost analysts, the corporate information technology staff and those toiling in the executive suite.

The following example shows how to document a case for management approval and peer support. The example used in this article is an advanced enterprisewide statistical process control and automated data-collection system.

First step: Select an application. You may see many excellent applications for a new SPC/ADC system. Select one or a combination of applications that will appeal strongly to your audiences. Does your selection promise a significant, positive financial impact? Will its benefits dovetail with other corporate initiatives? You're likely to do best at detailing, costing, explaining, defending and implementing processes you are familiar with.

Next, design the solution. Begin by carefully defining the problem, then completely describe the proposed operational and technical solution to the problem. Remember, you are trying to change your organization, especially the way people work and the way they think. Specify cost savings, especially as they relate to process or change factors, even if these savings won't be immediate. Point to the beneficial effects on people, productivity and quality. Anticipate objections and address them up-front; those that arise later will be more difficult to counter.

Enlist highly regarded people from other functional areas who can help identify key issues and lend credibility to your arguments. You may need support from finance, management information systems or IT, research, business planning and analysis, human resources and administration, as well as from operations.

Estimate the project's cost. Be realistic and be comprehensive. In addition to hardware and software costs, include costs for anticipated equipment upgrades, spares, service contracts, interfaces, initial training, internal resources, internal labor, implementation, integration and outside consulting.

Find out what book values your company puts on employees and other internal resources. Estimate the labor, skill levels and other resources you'll need. This will help you solidify your model, plot a proper timeline and establish expectations for participation by your enlisted experts and others.

Analyze the financial aspects. Your company's goal is productivity. Quality is requisite to productivity. But management is likely to focus first on the anticipated financial ROI, i.e., cost savings and income improvements. So, paint the big picture, structure the outline, and then detail it. Here's what you need to create:

Project income statement. This looks forward--typically five years--at assumptions affecting income for your company (or subsidiary, division or department).

The income statement follows an accrual process; that is, each anticipated expense is recorded in the period when it will be incurred. There are no secret methods involved here, simply carefully detailed research.

Assumptions affecting this income statement include:

  • Depreciation
  • Service cost
  • Supplies cost
  • Installation cost
  • Labor savings
  • Inventory savings
  • Scrap savings
  • Supply chain savings
  • Operating income
  • Interest savings
  • Pre-tax income
  • Income tax
  • Net income

ROI

ROI is average yearly income as a percentage of the project's cost. This is a "cut to the chase" benchmark favored in boardrooms. Find out your organization's ROI goal. Often, it's about 25 percent.

Now, quantify the savings. You and your team members who are most familiar with production and quality assurance must analyze the kinds of quantifiable savings ("hard" benefits) and intuitive savings ("soft" benefits) your proposed SPC/ADC system can deliver. Your arguments should be dramatic and convincing. In describing the need for the new system, be factual, thorough and conservative.

Finally, write the proposal. Here's how to proceed:

Know your audiences. The MIS or IT director, the floor supervisor, the board of directors and others whose support you seek have different interests. Avoid drafting a generic proposal and simply retitling it for each audience. Instead, list the key factors each audience will look for and focus on those. Minimize discussions of extraneous issues. Talk with other managers at your level--perhaps they can provide you with proposals that ave worked for them. But make your proposal reflect your objectives. Be willing to explain and defend your proposal to anyone who steps forward. You will learn from this, and it will make you more confident.

Describe the implementation. This section separates action from financial analysis. Include levels of detail suitable for each audience--enough to prove your forethought and planning without smothering the reader's interest. Providing for contingencies and projected costs of possible complications in your implementation plan can prove that you are prepared to do whatever it takes to make your project succeed. Show that you have planned well and will be able to execute the plan. Later, use this section to benchmark your progress.Draft the bulk of your proposal. Start by defining the document, its audience(s) and what you expect to achieve. Then describe the project, its proposed costs and its benefits. Finally, summarize how your proposal has delivered what you outlined at the start. Ask your project team members to review your work for accuracy, clarity and purpose.

Build the supporting documents. These should develop your arguments and detail how you reached your conclusions. Relatively few people may read these documents thoroughly, but those who do can be important to you. Supporting documents should include:

Financials. Base them on your company's accounting rules. Have your financial team member verify them. Financial analysts focus on details. Be sure you satisfy them.Project plan. While a basic cost justification may not require a project plan, it will be needed if it involves funding by other departments or commitment to the process. You need to develop a project plan in order to appreciate the relationships between tasks, activities and resources. Ask other successful project leaders in your company to advise you about how much detail to present in your cost-justification proposal.

Assumptions. Compile all assumptions made while developing your documentation. Include the sources for facts, statistics or rules of calculation. This can be highly valuable for defending your plan and resolving disagreements or misunderstandings.

Execute. Gaining approval for a capital project like a new SPC/ADC system requires demonstrating significant productivity gains and cost savings. These issues make your proposal important to management. Your proposal sets expectations and the tone for your project. Everything hinges on its acceptance. If the new system is really important to your company, then it's worth the time and care it will take to prepare a factual, convincing, bulletproof proposal.

 

 


 

Ask the Expert

Our team at CAT has many years of experience in the food processing industry.  Please submit your questions concerning plant issues, processing problems, etc. 



Question: If SPC is utilized, is the data in real time to allow timely response to problems?

Answer:   Yes. For example, temperatures in cook cycles are monitored in real time. If problems occur, those can be corrected without ruining the entire day's production.

Please submit future newsletter questions to: newsletter@catsquared.com

 

 

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