hierarchical database
See Also: database
[computing] A database that stores related information in a tree-like structure, where records can be traced to parent records, which in turn can be traced to a root record.
Hierarchical Model
The hierarchical database organizes data in a tree structure. Data is structured downward in a hierarchy of tables. Any level in the hierarchy can have unlimited children, but any child can have only one parent.
hierarchical districts
A series of jurisdictions which are superimposed with, or overlap on, other jurisdictions either smaller or larger in size and usually which have a vertical relationship in authority and responsibility, i.e.
Hierarchical Database stores related information in terms of pre-defined categorical relationships in a "tree-like" fashion. Information is traced from a major group, to a subgroup, and to further subgroups.
Hierarchical This type of data storage refers to data linked together in a tree-like fashion, similar to the concept of family lines, where data relations can be traced through particular arms of the hierarchy.
Hierarchical - A way of classifying data, starting with the general and going to specific labels.
Hydrography - Topography pertaining to water and drainage feature.
Hierarchical: A logical structure that classifies information in a series of steps, starting with broad, simple classifications, and proceeding, in stages, to narrow, precise classifications.
[edit] Hierarchical model
In a hierarchical model, data is organized into a tree-like structure, implying a single upward link in each record to describe the nesting, ...
2 Hierarchical data structures
Hierarchical data structures have useful applications within archaeology as they arrange the objects in a database in a related tree of linked parent and child records.
Hierarchical clustering creates a hierarchy of clusters which may be represented in a tree structure called a dendrogram.
Hierarchical methods
Random
Random walks
Random search & save
Table 1, CONVENTIONAL SEARCH AND OPTIMISATION METHODS (After Goldberg, 1989, p3) ...
Hierarchical data model - One of the classical data models that is based on layers of data sets and sub-sets organized as parents-children.
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The hierarchical positioning of symbols associated with a point feature is as follows: ...
The hierarchical multi agent system consists of three levels.
The macro level possesses one macro agent which transmits the user requirements by setting up the top level meso agents' constraints before triggering their life cycle.
Thread A hierarchical arrangement of linked notes in which each successive contribution is written as a response to an earlier note in the discussion (to organize discourse). Usually used by online conferencing forums and called "threading".
Programmer Hierarchical Interactive Graphics System
Philada.
Philadelphia ...
Canadian System of Soil Classification A hierarchical system that is used in Canada to classify soils. This system has five levels: order, great group, subgroup, family, and series.
Organizing Attribute Data (Foote and Huebner/Geographer's Craft) -- Flat files and spreadsheets, hierarchical files, relational files. Overview of Database Design (ESRI) -- What influences dbase design?; what needs to be designed?
Life is classified by a taxonomic system (first espoused by Linnaeus) of hierarchical catetories - from the highest level (broadest number of constituents) to the lowest (most limited or particular).
In the case study, the Hierarchical Dominance approach was tried, but resulted in total failure. At the onset, the group was uncomfortable with identifying one land use as always being better than another.
Initial GIS software techniques were based on hierarchical grid cell systems. It became apparent that additional capabilities were needed for accurate cartographic representation and analysis of vector-based map data.
Unlike the hierarchical and network models, there are no explicit pointers; in theory, columns of any type may be used to create an ad-hoc relationship between two or more tables.
The components of the hierarchical Design++ models represent assemblies, sub-assemblies and physical parts. Rules live within attributes of these components.
Hierarchical structures required for management of properties and methods in GIS
Generalization and Specialization create the structure in which objects can be grouped into superclasses and subclasses.
Here, you can see there is also a hierarchical organization of toolboxes, toolsets, and tools. The top-level is ArcToolbox, but within ArcToolbox, you see 3D Analyst Tools and Analysis Tools.
This hierarchical organization allows data processing in different levels of detail.
Its new web based capital asset management portal is geo-centric, and has map navigation as well as traditional hierarchical navigation.
Preparing Street Data for Use with the Network Dataset
Hierarchical Routes in ArcGIS Network Analyst (login required)
Esri K-12 Solutions: School Bus Routing Using Esri Tools to Address the Problems [PDF] ...
OBJECT CLASS
A set of objects with a specific theme such as 'stream' or 'woodland'. A hierarchical approach may be adopted in defining these sets, and ATTRIBUTE VALUES may be inherited from levels above a particular class.
Streetmap is a single CD which contains a very elaborate system of GIS data that has been packaged in a hierarchical set of ArcGIS layers which get more detailed as you zoom in. This provides a very easy source for GIS data at many scales.
Relational Database: A database structure composed of more than one flat file (2-dimensional arrays) that can be transformed to form new combinations because of relations between the data in the records, in contrast to hierarchical and network ...
PHIGS (Programmer's Hierarchical Interactive Graphics System) is very similar to GKS-3D. It is also a three dimensional computer graphics standard.
EOSDIS/HDF HDF-EOS is an extension of NCSA (National Center for Supercomputing Applications) Hierarchical Data Format. HDF-EOS adds mechanisms for storing geo-referencing and temporal information, data organization, and metadata storage.
USA: Global Self-consistent, Hierarchical, High-resolution Shoreline Database -- vector shoreline database by the Coast Guard
USA: FCC Topographic Databases ...
67 a spatial data structure that organizes a hierarchical structure of square cells through iterative division into four daughter cells (Samet 1990). quantile p. 93 a classification procedure that assigns an equal number of objects into each class.
 See also: Information, Model, GIS, Geographic, Area
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