BS ISO/IEC 33001:2015 pdf download-Information technology — Process assessment — Concepts and terminology.
A process assessment is conducted by comparing the results of performing the process(es) of interest in the organizational context, with the expected results of implementation as defined in a process assessment model. A process assessment model combines the basic set of process descriptions from one or more process reference models with the constructs and elements defined in the selected process measurement framework. Figure 2 shows the relationship between a process assessment model, a corresponding process reference model, and a process measurement framework. The two-dimensional model, as depicted in Figure 2, consists of a set of processes defined in terms of their purpose and process outcomes, and a process measurement framework which contains a set of process attributes related to the process quality characteristic of interest. The process attributes apply across all processes. They may be grouped into process quality levels that may be used to characterise the process. The assessment output includes a set of process profiles and optionally a process quality level rating for each process assessed. In order to maximize the repeatability, reliability and consistency of assessments, documented evidence justifying the ratings must be recorded and retained. This evidence is in the form of assessment indicators, which typically take the form of objectively demonstrated characteristics of work products, practices and resources associated with the processes assessed. A process assessment model contains details of the assessment indicators to be used. Such assessment indicators can be documented through the use of some form of database, checklists or questionnaires. ISO/IEC 33010 includes guidance concerning the availability and use of assessment indicators during the assessment.
The key elements of the process assessment process are summarized in Figure 3. ISO/IEC 33002 defines the requirements for performing an assessment. ISO/IEC 33003 defines requirements for the definition of frameworks for measuring specific process quality characteristics; a defined process measurement framework for the assessment of process capability is specified in ISO/IEC 33020. ISO/IEC 33004 sets out the requirements for process models that support process assessment. ISO/IEC 33010 provides guidance on performing an assessment and interpreting the requirements in ISO/IEC 33002. For the circumstances under which assessment results may be compared refer to ISO/IEC 33010 and the process measurement framework. The suite of standards for process assessment provide a generic approach to be applicable across all organizations.