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A measure of central tendency of a distribution is a numerical value that
Skill/Topic: Statistical Process ControlA) describes how the data tend to build up in the centerB) describes the number of data that is in the centerC) describes the average value of the data collectedD) None of the aboveExplanation: A Measure of central tendency of a distribution is a numerical value that describes the central postion of the data or it describes hpw the data tends to build up in the...
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What are the three measures in common use in Quality?
Skill/Topic: Statistical Process ControlA) The Three Measures of Common use in Quality Control is Mean, Median and ModeExplanation: The three commonly used measures in quality control are Mean (also called as Average), Median (is the value that divides a series of ordered observations so that the number of items above it equals to the number below it) and Mode (is the value that occurs with the highest...
kurtz182
- Dec 20th, 2009
1) Mean - average2) Mode - most often3) Median - middleI'll add one more:4) Range - the difference between highest and least value
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Allowable variations in manufacturing are called _____________
Skill/Topic: Statistical Process ControlA) TolerancesExplanation: The presence of unavoidable variation and the necessity of interchangeability require that some limits be specified for the variation of any quality characteristic. These allowable variations are specified as tolerances
kurtz182
- Nov 28th, 2009
Allowable variations in manufacturing are called tolerances. It is interesting to note that what is allowable in the manufacturing sector is not true for software development. Any deviation (variation) from software requirements or specifications are considered defects.
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DOE does not improve the Process yields
Skill/Topic: Statistical Process ControlA) TrueB) FalseExplanation: Apart from improving the capability of a process, DOE also increases the process yields
naveenkumar
- Nov 26th, 2015
B) False
forwallytal
- Apr 24th, 2012
True: Design of Experiment allows the most impactful parameters to hopefully be identified and enable the experimenter to target improvements in a more fruitful and effective manner. The DOE is a diagnostic tool - not the repair.
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A stable process still has a ________________
Skill/Topic: Statistical Process ControlA) VariationExplanation: Even though the process may be stable, it will still have variation. This variation could be due to Common causes.
naveenkumar
- Nov 26th, 2015
Yes, it is common, because machine error or equipment error as possible in process
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___________ Causes variations in a Stable process
Skill/Topic: Statistical Process ControlA) Assignable causeB) Common CauseC) Random CauseD) None of the above
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Control chart is a simple graph to see if the process is ______________
Skill/Topic: Statistical Process ControlA) Within control or not
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What are the roles of Quality Assurance?
kurtz182
- Dec 23rd, 2009
The roles of Quality Assurance are:1) To help key stakeholders understand the quality of their products and services so they can make informed business decisions about them.2) To help improve the qual...
ashishks
- Aug 24th, 2009
The following is the role of QA:-1. To produce a quality product,2. Which is reasonabily bug free,3. Which meets customers requirements,4. Best fit in cost and time and makes sure that correct process are followed,5. And easy to maintain.
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What are all the different metrics that can be captured in Software Testing?
Apart from Schedule Variance and effort variance what metrics can be captured in Software testing?
kurtz182
- Dec 25th, 2009
Some key metrics for software testing:DEFECT METRICS1) Test progress tracking metrics: Track the the cumulative test cases or test points that are planned, attempted, and successful over the test exec...
G.D.S.Prasad
- Mar 3rd, 2009
Metrics which we'll use in Testing are1. Shedule Variance2. Effort Variance3. Defect Density4. Productivity
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Testing
1. How many types of reviews that we have in our testing?2. What is bad defect? why do we write bad defects?3. How RTM will be helpful for the QC team?
tester_kolkata
- Jun 8th, 2010
Bad Defects:In testing world there is no such word called bad defect. Bad Defect is a new terminology which we are using in now a days in testing. Here bad defect is used in two different scenar...
kurtz182
- Dec 20th, 2009
1) There are peer reviews, walkthroughs and inspections.2) It is a high priority and/or severity bug. We attach a high priority or severity level in the defect report and our description often c...
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Each Measurement has an Error associated with it
Skill/Topic: Statistical Process ControlA) TrueB) False
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What is an USL in a Control Chart ?
Skill/Topic: Statistical Process ControlA) USL (upper Specification Limit) is the highest level considered to be acceptable
naveenkumar.v
- Nov 26th, 2015
Upper Specification Limit. It is a maxi value of concern product.
mailme.qualityfirst
- Nov 13th, 2010
USL is Upper Specification limit. This is the the acceptable level and defined by Customer. beyond which the product is rejected.
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Quality Control is reactive in approach
Skill/Topic: Statistical Process ControlA) TrueB) FalseExplanation: Quality Control takes place after the defect has occured
kurtz182
- Dec 25th, 2009
A) True.Quality Control is reactive in its approach while Quality Assurance is proactive in its approach. Quality Control is all about detecting defects in a product that has already been produced, while Quality Assurance is about improving processes in order to prevent defects.
gund
- Feb 26th, 2006
Quality Control is not a reactive in approach quality is built into the product right from the design stage, and SPC charts indicates before the process goes out of control such that we can take the corrective action before defective products are produced.
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What is Defect Rejection Ratio (DRR) and Defect Leackage Ratio (DLR)?ThanksSivaiah
kurtz182
- Dec 25th, 2009
DEFECT REJECTION RATIO (DRR)DRR measures issues that were raised that ultimately had no impact on product quality. This could easily be considered a measure of wasted effort and an opportunity f...
murthydn16
- Aug 31st, 2007
Hi,What do you mean by "Tester to assess the performance" in the denominator of the equation Defect Rejection Ratio = No of defects rejected / Tester to assess the performance.RegardsMurthy
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Dock Audit
What is dock audit?
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What is BLACKOUT PHASE in software development lifecycle model?
kurtz182
- Dec 25th, 2009
The maintenance phase is considered to be the blackout phase. Maintenance is the last stage of the software development life cycle. After the product has been released, the maintenance phase kee...
G.D.S.Prasad
- Mar 3rd, 2009
Maintenance phase for a project and UAT for a product can be called as Blackout or Quite Phase in SDLC.
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Variables are those quality characteristics that are classified as either conforming or not conforming to the specifications
Skill/Topic: Statistical Process ControlA) TrueB) FalseExplanation: Variables are those quality characteristics that are measurable like height, weight while Attributes are those quality characteristics that are classified as either conforming or not conforming to the specifications like OK-Not OK, Good- Bad
kurtz182
- Dec 25th, 2009
For our purposes:A variable refers to something that can take on different values and can be measured. An attribute refers to a characteristic or property of something.EXAMPLE: If you are ...
marutalksin
- Feb 26th, 2007
Variables are those quality characteristics that are classified as either conforming or not conforming to the specifications TRUE
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For any linear function X = X1 ± X2 ± X3±......... ±Xk, the Tolerance T = T1 + T2 + T3 +....... + Tk . This is an example of ______ Relationship
Skill/Topic: Statistical Process ControlA) Additive relationshipExplanation: This is called an additive relationship. The design engineer can allocate tolerances T1,…,Tk among the k components, for a given (specified) T, using this additive relationship.
Quality Control Interview Questions
Ans