There are practical situations in which the quality of a process or product can be better characterized by a functional relationship between a response variable and one or more explanatory variables, which is called profile. Such profiles frequently can be represented adequately using linear or nonlinear models. While there are several studies in monitoring profiles, there are few studies to ev...

Monitoring, control and improvement of quality are  important  for companies.  Process capability indices (PCIs) are tools widely used by the industries to determine  the quality of their products and the performance of their manufacturing processes. Classic versions of  these  indices were constructed for processes whose quality characteristics have  a  normal distribution. But, many of these ...

In this paper we publish the results of a thorough empirical evaluation of a CMM-based software process improvement program that took place at the IT department of a large Dutch financial institution. Data of 410 projects collected over a period of four years are analysed and a productivity improvement of about 20% is found. In addition to these results we explain how the use of linear regressi...

The capability maturity model integration (CMMI) has become one of the most preferred approaches to software process improvement (SPI). However, the amount of discontinued or delayed CMMIdriven SPI projects is considerable. In this paper we investigate the culture embedded in the CMMI and compare it with the cultures within an implementing organization in Scandinavia by utilising the competing ...

Background: Maturity models for IT service such as CMMI-SVC and MR-MPS-SV requires identification of critical business process and definition of relevant metrics to support decision making, but there is no clear direction or strict suggestion about which should be those processes and metrics. Aims: We aim to identify adequate metrics to be used by organizations deploying IT service maturity mod...

the aim of this study was to develop an optimal sustainable forest plantation based on goal programming and analytic hierarchy process (ahp) methods. this study was carried out in guilan province, north of iran. first of all, the ecological capability of the study area for plantation establishment/maintenance was evaluated based on multi-factor method and specific ecological makhdoum model by m...

1. Introduction A process capability index is a numerical summary that compares the behavior of a product or process characteristic to engineering specifications. These measures are also often called capability or performance indices or ratios; we use capability index as the generic term. A capability index relates the voice of the customer (specification limits) to the voice of the process. A ...