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2. PDF - Wikipedia

   en.wikipedia.org/wiki/PDF

   HTML Form format HTML 4.01 Specification since PDF 1.5; HTML 2.0 since 1.2 Forms Data Format (FDF) based on PDF, uses the same syntax and has essentially the same file structure, but is much simpler than PDF since the body of an FDF document consists of only one required object. Forms Data Format is defined in the PDF specification (since PDF 1.2).

3. Row- and column-major order - Wikipedia

   en.wikipedia.org/wiki/Row-_and_column-major_order

   Row- and column-major order. In computing, row-major order and column-major order are methods for storing multidimensional arrays in linear storage such as random access memory. The difference between the orders lies in which elements of an array are contiguous in memory. In row-major order, the consecutive elements of a row reside next to each ...

4. Flat-file database - Wikipedia

   en.wikipedia.org/wiki/Flat-file_database

   A flat-file database is a database stored in a file called a flat file. Records follow a uniform format, and there are no structures for indexing or recognizing relationships between records. The file is simple. A flat file can be a plain text file (e.g. csv, txt or tsv), or a binary file. Relationships can be inferred from the data in the ...

5. Table (information) - Wikipedia

   en.wikipedia.org/wiki/Table_(information)

   Table (information) A table is an arrangement of information or data, typically in rows and columns, or possibly in a more complex structure. Tables are widely used in communication, research, and data analysis. Tables appear in print media, handwritten notes, computer software, architectural ornamentation, traffic signs, and many other places.

6. Document-term matrix - Wikipedia

   en.wikipedia.org/wiki/Document-term_matrix

   Document-term matrix. A document-term matrix is a mathematical matrix that describes the frequency of terms that occur in each document in a collection. In a document-term matrix, rows correspond to documents in the collection and columns correspond to terms. This matrix is a specific instance of a document-feature matrix where "features" may ...

7. Zachman Framework - Wikipedia

   en.wikipedia.org/wiki/Zachman_Framework

   Rule 1 The columns have no order : The columns are interchangeable but cannot be reduced or created; Rule 2 Each column has a simple generic model : Every column can have its own meta-model; Rule 3 The basic model of each column must be unique : The basic model of each column, the relationship objects and the structure of it is unique. Each ...