Papers - Strong et al. - Data quality in context

11 important questions on Papers - Strong et al. - Data quality in context

What is, according to the paper, the main issue that Strong et al try to resolve?

Data Quality is currently too narrowly focussed on only the intrinsic level of DQ, failing to solve complex organisational problems related to DQ. Tene et al provide us with a broader conceptualisation of Data Quality, as DQ cannot be assessed independent of consumers who use the products.

What do Strong et al describe 'High Quality' data as?

Data that is fit for use by data consumers. Usefelness and usability are key.

What are, based on the definition of High Quality data, the four categories of HQD?

  • Intrinsic
  • Accessibility
  • Contextual
  • Representational
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When can we speak of a DQ problem, according to Strong et al?

When one or more quality dimensions cannot be guaranteed sufficient, rendering the data unfit for use

What are the DQ dimensions of the Intrinsic DQ category?

Accuracy, Objectivity, Believability, Reputation

What are the DQ dimensions of the Contextual DQ category?

Relevancy, Value-Added, Timeliness, Completeness, Amount of Data

What are the DQ dimensions of the Representational DQ category?

Interpretability, Ease of understanding, Concise representation, Consistent representation

What are the two main causes of intrinsic DQ problems?

  1. Mismatches among sources of the same data
  2. Judgment or subjectivity in the data production process (coded data is considered as lower quality than raw data)

Explain how data custodians can become part of the DQ problem pattern of accessiblity through one of the key dimensions of this category.

Access security is one of the dimensions of Accessibility, but this can be perceived as a barrier when data Custodians have to give approval to consumers to access that data

Representational DQ dimensions can be the underlying causes of accessibility DQ problem patterns, explain.

If data cannot be represented in a way that can be analysed by data consumers (for example representing trends in data), this data becomes 'inaccessible'.

Strong et al. Identify three roles in data manufacturing systems (production and storage of data), with the central actor being the data production process. What is this process and what are the three roles in the data manufacturing system?

Data Production Process is; Transforming data into information that is useful to data consumers.

Three roles are:
  1. Data Producers (groups, people, other sources that generate data)
  2. Data Custodians (people who provide and manage computing resources for storing and processing data)
  3. Data Consumers (people or groups who use data)  

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