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  2. Data hierarchy - Wikipedia

    en.wikipedia.org/wiki/Data_hierarchy

    Data field value = Jeffrey Tan The above description is a view of data as understood by a user e.g. a person working in Human Resource Department. The above structure can be seen in the hierarchical model, which is one way to organize data in a database. [2] In terms of data storage, data fields are made of bytes and these in turn are made up ...

  3. Database design - Wikipedia

    en.wikipedia.org/wiki/Database_design

    A sample entity–relationship diagram. One of the most common types of conceptual schemas is the ER (entity–relationship model) diagrams. Attributes in ER diagrams are usually modeled as an oval with the name of the attribute, linked to the entity or relationship that contains the attribute.

  4. Data classification (data management) - Wikipedia

    en.wikipedia.org/wiki/Data_classification_(data...

    Data classification is the process of organizing data into categories based on attributes like file type, content, or metadata. The data is then assigned class labels that describe a set of attributes for the corresponding data sets. The goal is to provide meaningful class attributes to former less structured information.

  5. SCARA - Wikipedia

    en.wikipedia.org/wiki/SCARA

    The SCARA is a type of industrial robot. The acronym stands for selective compliance assembly robot arm [1] or selective compliance articulated robot arm. [2] By virtue of the SCARA's parallel-axis joint layout, the arm is slightly compliant in the X-Y direction but rigid in the Z direction, hence the term selective compliance. This is ...

  6. Warnier/Orr diagram - Wikipedia

    en.wikipedia.org/wiki/Warnier/Orr_diagram

    A Warnier/Orr diagram (also known as a logical construction of a program/system) is a kind of hierarchical flowchart that allows the description of the organization of data and procedures. They were initially developed 1976, [ 1 ] in France by Jean-Dominique Warnier [ 2 ] and in the United States by Kenneth Orr [ 3 ] on the foundation of ...

  7. Statistical data type - Wikipedia

    en.wikipedia.org/wiki/Statistical_data_type

    The concept of data type is similar to the concept of level of measurement, but more specific. For example, count data requires a different distribution (e.g. a Poisson distribution or binomial distribution) than non-negative real-valued data require, but both fall under the same level of measurement (a ratio scale).

  8. Guttman scale - Wikipedia

    en.wikipedia.org/wiki/Guttman_scale

    For data sets where the categories of all variables are similarly ordered numerically (from high to low or from low to high) with respect to a given attribute, Guttman scale is defined simply thus: Definition: Guttman scale is a data set in which all profile-pairs are comparable.

  9. Data architecture - Wikipedia

    en.wikipedia.org/wiki/Data_architecture

    Data architecture consist of models, policies, rules, and standards that govern which data is collected and how it is stored, arranged, integrated, and put to use in data systems and in organizations. [1] Data is usually one of several architecture domains that form the pillars of an enterprise architecture or solution architecture. [2]