What does SPC mean to you and your organization?

When companies contact us for an SPC (Statistical Process Control) solution, we first start with a requirements document. This requirements phase interviews and takes into account the SPC needs of the different intended users of the system. These needs and the capabilities of the system can vary quite a bit. If you’re considering implementing an SPC solution, it’s a good idea to map out everyone’s needs and expectations first. Some examples of different test data management stakeholders and their SPC needs as we’ve seen them are below:

  • Test Engineering: Typically, the TE group will need control charts characterized to verify the performance and accuracy of test equipment. Typically, these charts will be pre-configured and available on a weekly or on-demand basis.
  • Operations: Control charts characterized by both users and meta data to verify the performance of operators, stations, and components across multiple stages. These stages include final assembly of a finished product, subassembly steps, repair steps, etc. Typically, they’ll want to see easy-to-digest high level reports that are available on a weekly basis.
  • Quality: Real Time SPC using WECO rules to operators to identify and fix emergent issues before they cause line shutdown issues.  This includes true real-time alerts integrated with Paperless Forms, and email alerts to management that are triggering off of data immediately. For accurate WECO rules, they’ll need a large enough sample size of data for each measurement to define what the standard deviations should be. A secondary need is having the same kind of control charts as the Operations group.
  • Supplier Quality: Real-time SPC using histograms to alert Suppliers and OEM supplier managers to performance characteristics trending out of control. This includes true real-time alerts needed via email.

Another question to ask your internal users is what kind SPC quality methodology is needed. Most stakeholders will say they need Cpk in order to determine how close they are to their specification limits. Ppk usually isn’t what they initially request. However, it’s important to understand that legacy data defines the availability of Cpk vs Ppk (there’s already a stable process where we can calculate Cpk, and we are bringing the data of that process into the system). Most of the time, it makes more sense to start off with Ppk, and transition to Cpk once the process is well defined.

So, to summarize, when your stakeholders say they need SPC, make sure you understand what they mean by SPC and how they’ll be applying SPC rules. Ppk and Cpk are both applicable, depending on your use case.



IntraStage Version 6.0.3 Release to Cloud Customers

IntraStage Version 6.0.3 will be released to Cloud-Hosted customers on Friday, February 5th, 2016.
Please contact us if you need the release notes in order to review the new features and fixes. If you have an On-Premise IntraStage deployment, please contact your account manager to review the release notes and to schedule an upgrade.

Using Test Data to Better Manage ATEs

Automated Test Equipment (ATEs) need validation and monitoring, whether they are located in an Original Equipment Manufacturer (OEM) facility or a Contract Manufacturer (CM) facility.  Aggregating ATE data for analyses like Gage R&R or measurement limit change studies can take time and tremendous effort. Due to the required time investment, these kinds of studies are not performed on a regular basis. In this whitepaper, we will discuss how an IntraStage customer quickly reviewed their ATE data and avoided 240 engineering hours of effort, and prevented a possible customer recall.

Download whitepaper (831 kb PDF)

Join IntraStage in London at NI’s Automated Test Summit on July 2

NI Automated Test Summit 2015

NI’s Automated Test Summit features a full, inspiring day of presentations, hands-on training and certification from NI, the industry leader in modular test and measurement. The summit is a great opportunity to interact with both peers and NI engineers about innovative automated testing methods, technologies, strategies and tools.

Attendees will learn how to develop automated test systems using NI tools and capture detailed measurement data. This data can be automatically loaded into IntraStage for use in trend charts, Paretos, and other detailed product analytics.

To learn more about IntraStage or to schedule a meeting at the show, contact us here:

Arrange a Meeting / Request Information

NI Automated Test Summit 2015 – Royal Berkshire Conference Centre – Thursday 2nd July 2015:
Register Online Now

Dashboards to Track and Monitor KPIs

Capturing Key Performance Indicators at a GLANCE

Key Performance Indicators (KPIs) are now an everyday requirement of large
organizations. The problem today is that organizations are swimming in product quality
test data and to understand their KPIs is a daunting task. Only now, are we seeing
companies leverage their massive amounts of available Test Data through visualization
software, mining tools and dashboards.

Dashboards allow the users to view the information they need to make an effective
decision and to take appropriate action. Through active dashboards, businesses can
implement an action plan and assign ownership for each KPI, should that KPI fall out its
target range.

IntraStage offers personalized dashboards according to the roles and preferences of
each user. By creating a tailored dashboard view that is relevant to the responsibilities
of each person, better decisions can be made.

For more information on how to design and deploy personalized or project-wide dashboards, [gravityform id=”15″ name=”How to Use Test Data Dashboards to Manage Your Key Quality Metrics”]