enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Data curation - Wikipedia

    en.wikipedia.org/wiki/Data_curation

    The user, rather than the database itself, typically initiates data curation and maintains metadata. [8] According to the University of Illinois' Graduate School of Library and Information Science, "Data curation is the active and on-going management of data through its lifecycle of interest and usefulness to scholarship, science, and education; curation activities enable data discovery and ...

  3. Preservation metadata - Wikipedia

    en.wikipedia.org/wiki/Preservation_metadata

    Preservation metadata provides the vital information which will make “digital objects self-documenting across time.” [6] Data maintenance is considered a key piece of collections maintenance [8] by ensuring the availability of a resource over time, a concept detailed in the Reference Model for an Open Archival Information System (OAIS).

  4. Codd's 12 rules - Wikipedia

    en.wikipedia.org/wiki/Codd's_12_rules

    Codd's twelve rules [1] are a set of thirteen rules (numbered zero to twelve) proposed by Edgar F. Codd, a pioneer of the relational model for databases, designed to define what is required from a database management system in order for it to be considered relational, i.e., a relational database management system (RDBMS).

  5. Digital Curation Centre - Wikipedia

    en.wikipedia.org/wiki/Digital_Curation_Centre

    The Data Asset Framework or DAF is a data audit methodology developed by HATII at the University of Glasgow in conjunction with the Digital Curation Centre. Originally the Data Audit Framework, the Data Asset Framework is an interview protocol utilised by educational institutions to better understand their growing research data collections.

  6. Database transaction schedule - Wikipedia

    en.wikipedia.org/wiki/Database_transaction_schedule

    The conflict is materialized if the requested conflicting operation is actually executed: in many cases a requested/issued conflicting operation by a transaction is delayed and even never executed, typically by a lock on the operation's object, held by another transaction, or when writing to a transaction's temporary private workspace and ...

  7. Create, read, update and delete - Wikipedia

    en.wikipedia.org/wiki/Create,_read,_update_and...

    In computer programming, create, read, update, and delete (CRUD) are the four basic operations (actions) of persistent storage. [1] CRUD is also sometimes used to describe user interface conventions that facilitate viewing, searching, and changing information using computer-based forms and reports.

  8. Commitment ordering - Wikipedia

    en.wikipedia.org/wiki/Commitment_ordering

    The database system has two transactional data managers (resource managers), one on each node, and the database data are partitioned between the two data managers in a way that each has an exclusive control of its own (local to the node) portion of data: Each handles its own data and locks without any knowledge on the other manager's. For each ...

  9. ISAM - Wikipedia

    en.wikipedia.org/wiki/ISAM

    A database system where an application developer directly uses an application programming interface to search indexes in order to locate records in data files. In contrast, a relational database uses a query optimizer which automatically selects indexes. [2] An indexing algorithm that allows both sequential and keyed access to data. [3]