OPEDIA

Pure Know-How
for Operations

AJAX progress indicator
  • c
  • Control Phase
    This last phase of the DMAIC Project is all about controlling the improved process: No control, no sustainability of results. Here the project success is evaluated, but moreover, in Control the(...) Read More
  • Cp
    The Cp-Index (Process Capability) compares the tolerances of the process (how it should be) to the process spread (how it is). The short-term standard deviation sST is calculated using short(...) Read More
  • Cpk
    The Cpk-Index (Critical Process Capability; k: "Katayori", Japanese for bias) compares the distance from the process center to the nearest Specification Limit (how the process should be) to the(...) Read More
  • Creativity Techniques
    Creativity Techniques are tools used to generate a lot of ideas on how to solve a given problem (e.g. in the Improve Phase of a DMAIC-Project). They generally help broadening the scope of(...) Read More
  • Critical to Quality
    CTQ is a metric that reflects what the process customer wants and that can be measured internally. The CTQ is the deliverable of the "Voice of the Customer" (VOC) toolis always a Y metric(...) Read More
  • CTQ
    CTQ is a metric that reflects what the process customer wants and that can be measured internally. The CTQ is the deliverable of the "Voice of the Customer" (VOC) toolis always a Y metric(...) Read More
  • Customer Value
    In Lean, there are three criteria to define value-adding step: The product is physically transformed of information is alteredIt is done right the first timeThe customer is willing to pay(...) Read More
  • Cycle Time
    The Cycle Time is the completion rate of a product. It is the actual time from part-to-part measured after a process steps or production line in scope: Just try to picture yourself standing at(...) Read More
  • d
  • Dashboard
    A dashboard is a visual management tool displaying the data and information that are relevant to the process of interest. Typically, process dashboards indicate the measures (KPIs) used(...) Read More
  • Data Collection Plan
    The data collection plan makes sure that you collect the data in a way that you can later use these data to analyze cause-effect relationships (measuring Ys and Xs at the same time). By(...) Read More
  • Days of Inventory
    Days of Inventory (DOI) is a Lean Metric describing the average time period your inventory stays in the warehouse, typically separated into raw materials, intermediate (Work in Process [WIP])(...) Read More
  • Defect
    A defect is any type of undesired result making the product/part fail to meet the acceptance criteria of the customer. It is one of the eight types of waste. Read More
  • Defects (Type of Waste)
    Defects are items that are not conforming to expectations or customer specifications. They are waste, as they lead to scrapping, extra efforts for rework and/or re-inspection, and to additional(...) Read More
  • Define Phase
    This first phase of a DMAIC Project is all about clearly defining the project. The main deliverable of the Define phase is a clear problem statement including metrics – how do you measure the(...) Read More
  • Descriptive Statistics
    Descriptive statistics aim at summarizing a set of data (sample) by characteristic measures such as sample sizecentral tendency (mean, median) data spread (range, variance, standard(...) Read More
  • Design for Six Sigma
    Design for Six Sigma (DFSS) is a system engineering approach proactively making use of Six Sigma tools and methods to consistently enable customer focusrobust designshigh production yields(...) Read More
  • Design of Experiments
    Design of Experiments (DOE) is a tool to model a continuous output variable (Y) with continuous or discrete input/process variables (Xs). It describes a way to set up the eyperimental data(...) Read More
  • Desk Layout
    The idea of a good Desk Layout is to keep movements that lead to unnecessary body stretching to a minimum. The benefits of a suitable layout are shorter Cycle Times – thanks to reduced(...) Read More
  • DFSS
    Design for Six Sigma (DFSS) is a system engineering approach proactively making use of Six Sigma tools and methods to consistently enable customer focusrobust designshigh production yields(...) Read More
  • Discrete Data
    Discrete data are count data meaning that observations with a certain attribute can be counted. They are frequently described using proportions (%, ppm), e.g. 56 good observations, and 11 bad(...) Read More
  • DMAIC
    DMAIC is a project management methodology for problem solving that originated in Six Sigma. Following the methodology helps to find the root cause(s) of a problem and prevents from “jumping to(...) Read More
  • DOE
    Design of Experiments (DOE) is a tool to model a continuous output variable (Y) with continuous or discrete input/process variables (Xs). It describes a way to set up the eyperimental data(...) Read More
  • DOI
    Days of Inventory (DOI) is a Lean Metric describing the average time period your inventory stays in the warehouse, typically separated into raw materials, intermediate (Work in Process [WIP])(...) Read More
  • Downtime
    Downtime includes any time a system is not operating. One can distinguish between: scheduled downtimes (maintenance, set-up time, breaks) unscheduled downtimes (equipment failures) Read More