Quality Notion

Exploring new ways of quality and process voyage

Quantitative Management

How to set objectives if there is no baseline?

Baselines are created for the core “value-generating” processes of the business in the organizations. From the observed measurement data, an organization comes up with various process performance baselines (PPB) periodically. In a software industry, there can be PPBs for coding speed, defect density, productivity, testing speed, review effectiveness etc. Then measurable improvement targets (process performance […]

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All about Hypothesis

Open the pdf and explore.. Hypothesis Test

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Statistical Tests in Minitab leading to CMMI High Maturity

In this article, 7 statistical tests are explained which are essential for doing statistical analysis inside a CMMI High Maturity (HM) compliant project or organization. 1       Stability test Definition: Data stability for the selected parameter is tested using minitab before making performance baselines. Steps: Go to Stat->Control Charts-> I-MR (In variables, enter the column containing […]

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Configuration Baseline and Performance Baseline

“Walking on water and developing software from a specification are easy if both are frozen.” –  Edward Berard Baseline means ‘A Line which is the Base’. The word baseline may refer to surveying, typography, budgeting, pharmacology, Configuration Management, calculations etc. In an IT industry, baseline mainly implies A Configuration Baseline – A configuration of software, […]

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Quantitative management of CAR

Causal Analysis and Resolution (CAR) helps to identify and rectify the root cause of a defect or problem. It can be applied to any process area. Analysis can be qualitative, limited to a fish bone diagram or so. And at the same time it can be more advanced involving quantitative data. The steps below show […]

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Controlled Sub Process Vs Uncontrolled Sub Process

Sub processes are components of a larger defined process. For example, a typical development process may be defined in terms of sub processes such as requirements development, design, build, review and test. The sub processes themselves may be further decomposed into other sub processes and process elements. Measurable parameters are defined for these sub processes […]

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History of SPC

Statistical methods were adopted to monitor, control and improve quality in production industry even in early 1920s..And then the usage was spread across various sectors including software industry.. Read more… History of SPC

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What happens when data falls outside valid range of PPM ?

PPMs are valid within the data used or building them. We cannot extrapolate the data for prediction. Now we use these PPMs to check the probability of confidence in achieving the targets. That is, we are simulating subprocess parameters which could be outside the valid range of PPM. In that case, how can we expect […]

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50 % probability of confidence to achieve your project objectives– is it good enough ..?

A PM  says to his senior manager, ” There is only a 50- 50 chance to deliver the project on time”. A reply like ‘”you take the risk and go ahead as it is ” would be a rare case especially in case of a project where on time delivery is a critical requirement. Back […]

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What control chart shall I use?

Choice of the chart depends on the data type as well as number of measurements in each sub group. The type of chart again depends upon the subgroup measure as below..

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Akhila

Akhila

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