DQTS - Summary of Tools
	Cyclic Redundancy Check Generation of and verification of Cyclic Redundancy Check values in accordance with the integrity levels specified in Amendment 29 to ICAO Annex 15 to the Convention on Civil Aviation. Manual and batch processing of input files with selective data inclusion capabilities. Customisable database of integrity level polynomials.
	DATUM Transformation between defined geodetic datums and conversion between defined geodetic datums and map projections. Customisable database of national datum and map projection parameters.
	Join Inverse Calculation of the bearing and distance along a geodesic between given coordinates.
	Polar Direct Calculation of coordinates from a given coordinate, bearing and distance along a geodesic.
	Intersect Calculation of the coordinates at the intersection of two geodesics.
	Collinearity Calculation of line of best fit from given coordinates and calculation of corresponding residuals.
	GEOLAT Calculation of the following:- Coordinates of the points of intersection of a geodesic with up to three geodetic circles. Nearest approach distance of a geodesic to a point and the point on the geodesic abeam this offset point. Geodesics which pass through a common point and are tangential to a defined geodetic circle.
	CHECKLOC Verification of the geodetic location of a given coordinate by the comparison of the geodetic position of the coordinate with a benchmark defined as a circle or polygon.
	SLANT RANGE Calculation of the straight line distance between two given coordinates taking into account the elevation of the coordinates.
	GEO-BORDER/GEODESIC INTERSECTION Calculation of the intersection point(s) between a geo-border and a geodesic.
	GEO-BORDER/CIRCLE INTERSECTION Calculation of the intersection points between a geo-border and a circle.
	DATABASE CONNECTION Flexible data exchange. A limited number of ODBC compliant data sources can be accessed via the DQTS. DQTS has only be tested with MS Access, MS Excel, Text and Oracle datasources.
	REPORTING Report generation enabling records to be produced for   traceability, archive and quality purposes.

The DQTS, which consists of a suite of validated software capable of supporting these processes, is designed to assist the producers of aeronautical data to ensure that the necessary high levels of data integrity are maintained.

The family of tools provides a comprehensive geodetic calculation and secure integrity capability for the processing of aeronautical navigation data.

The Join Inverse and Polar Direct tools can be configured to perform spherical and planar in addition to ellipsoidal calculations, and the Intersect tool can be configured to perform spherical calculations.

The tools are designed and supported by STASYS Limited.

The Data Quality Tool Set is available in two variants:-

1. A Personal Computer variant providing an integrated package of tools designed to run under Microsoft Windows. The minimum PC specification is:

• Processor - Pentium or equivalent
• RAM - 16 Mb
• Hard disk space - 30 Mb
• Screen Display - SVGA 800 x 600 resolution
• Peripherals - Mouse
• Operating System - MS Windows 95, 98, NT

2. Dynamic Link Library (DLL) packages allowing third parties to build the DQTS calculation tool functionality into their own software applications. The tool packages are fully documented and include test data. The DLLs were written in Delphi and may also be called from C. Calls from Visual Basic may also be accommodated.

Version 4 of the DQTS is available on CD-Rom, together with accompanying user documentation.

DQTS Training is available on request. For further information please contact .

BACK TO HOME PAGE | BACK TO TOP OF PAGE
WGS 84 web site and  Data Quality Tool Set, commissioned by EUROCONTROL,
produced and supported by STASYS Limited
(Any comments about the WGS 84 web site to please)