Quality assessment definition

A Donabedian. Explorations in Quality Assessment and Monitoring The Definition of Quality and Approaches to Its Assessment. Vol. 1, Ann Arbor, MI Health Administration Press, 1980. 

An amalgamation of these definitions may provide the best explanation of the concept of quality in health care. Each provides additional insight into quality, what we can expect from quality, and how quality can be perceived. Webster s definition supports the idea that quality is a continuum of excellence or the lack thereof. From the Office of Technology Assessment definition it can be said that in medical care, quality can be measured and used to evaluate the care delivered by health care providers. This definition also implies that the care offered to patients should increase the probability of positive outcomes (e.g., getting rid of an infection) and decrease negative outcomes of care (e.g.,... 

For non-SI traceable quantities the predominant objective must be an agreement on the definition of these quantities on an international basis before reference measurement procedures can be developed and used for assigning target values in external quality assessment. 

The quality of the in vivo data available for the substances in the RSTS must be reviewed. This is important. If the quality of the in vivo data is poor, then the results of comparison between the in vivo data and the alternative method results will be difficult to assess definitely. 

There are several definitions of validation but, in simple terms, the word means demonstrating that a process will consistently produce the results that it is intended to. Thus, with respect to sterile products, validation would be necessary for each of the individual aspects of the manufacturing process, e.g. environmental monitoring, raw materials quality assessment, the sterilization process itself and the sterility testing procedure. Of these, it is the sterilization process that is likely to be subject to the most detailed and complex validation procedures, and these will be used to exemplify the factors to be considered. A typical validation procedure for a steam sterilization process is likely to incorporate most, or all, of the following features ... 

Certification of analyst competence. This is intended to assess whether a particular analyst can carry out sample and standard manipulations, operate the instrument in question and obtain data of appropriate quality. The definition of suitable data quality is open to interpretation but may be assessed in terms of replicate analyses of a check sample . 

Contents include definitions, study planning, quality assurance and control and data quality assessment, sample acquisition, and requirements for analytical laboratories. Appendices cover a hypothetical case history for drum characterization and a survey of statistical techniques. 

Borrowing from the definition of Taylor (1981), quality assurance is taken to encompass the two concepts quality control and quality assessment. Quality control is the mechanism established to control errors, while quality assessment is the mechanism used to verify that the measurement system is operating within acceptable limits. 

Veith [l. j reviewed the current state of precision testing using some ASTM test methods in the rubber manufacturing industry in 1987, Mooney viscosity (ISO 289. ASTM D1646), a widely used test for quality assessment of raw rubbers, gave reasonably good relative precision. Type 1 (r) pooled values of 3,0 percent for several clear rubbers, and good pooled R) values of 3,8 percent on the same basis. See Annex D for the definition of Type 1 and 2 precision and (r) and (/ ), For a widely used rate-of-cure... 

As stated above the Surveyor s role will include an assessment of the yard s quality control department including the suppliers of any contracted NDE services. The Surveyor will look for the employment of qualified personnel, the availability of adequate inspection procedures and the presentation of definitive NDE reports. 

In the first stage of the LCA analysis, it is necessary to define the objective and the scope of the paper before the actual start [35]. The study goal and scope definition determine the next procedure character and the circumstances in which the study outputs are valid [32]. [36] requires to establish a study goal and scope while the study scope means to determine the product system, the functional unit and system boundaries, to determine allocation rules, the assessment methodology, hypothesis and limits and data quality. 

After all the answers from the interviews had been uploaded, an expert analysed each supply chain for each of the seven defined criteria for quality and safety microbial toxins and abiotic contaminants potential pathogens natural plant toxicants freshness and taste nutrient content and food additives fraud social and ethical aspects. For example, an expert on freshness and taste would check each major step in a supply chain for tomatoes to determine if it fulfilled the definition of a CCP (HACCP, Principle 2) in relation to freshness and taste for this commodity. If the step was considered to be a CCP, the answers in the questionnaire that related to relevant substeps at this step would be reviewed, to assess the control procedures that were in use for this CCP. The expert would then fill in the text field, structuring the input to consist of the following points ... 

The link between the ecological/ecotoxicological risk assessment and the risk management frameworks is demonstrated. The ecological risk assessment consists of seven interactive elements (Fig. 17). The quantitative and descriptive science used to conduct ERA (Table 5) does not answer, in a direct way, the question of what should be done to manage the risk. Science determines adversity, but the public determines acceptability (Fig. 18). But acceptable risk is a highly subjective and relative term. It is time and space-specific and depends upon definitions of quality of life and robustness of the environment. 

We start with a definition of the problem and based on this, we identify the candidates (such as, molecules, mixtures and formulations) through expert knowledge, database search, model-based search, or a combination of all. The next step is to perform experiments and/or model-based simulations (of product behavior) to identify a feasible set of candidates. At this stage, issues related to process design are introduced and a process-product match is obtained. The final test is related to product quality and performance verification. Other features, such as life cycle assessment could also be introduced at this stage. 

Analytical methods should be precise, accurate, sensitive and specific but, because of the reasons outlined earlier, all methods fail to meet these criteria fully. It is important to assess every method for these qualities and there must be consistency in the definition and use of these words. 

---