MIL-PRF-32118

Abstract

This specification defines requirements for the National Imagery and Mapping Agency's (NIMA) Vector Product Format (VPF) Database Update (VDU). This specification further defines the tables that are necessary to build an "update layer" for NIMA Vector Product Format (VPF) data sets that require tracking and accountability for changes made to the underlying VPF data set. <br>Purpose. The purpose of this specification is to assure uniformity of treatment among all elements engaged in a coordinated production program for generating VPF update layers for those NIMA VPF products that require them. <b><u>Intended Use:</u></b> The intended use of the VDU is to allow users to update VPF data sets using a binary patch methodology. The intended use of the VDU update layer is to provide a format for additional data to be added to the VPF data set to allow tracking and accountability of change data, including marking of changed features and other information, and date of last update of a data library. VDU is not necessarily a military-unique process, but the data sets being updated by VDU, and consequently modified by this specification are for the most part DoD-generated, and have restricted distribution to DoD only. <br>