GB/T 27918-2011Geographic information -- Location based services -- Reference model (English PDF)

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules.

This standard uses the translation method identical with the International Standards Organization for Standardization Technical Committee of Geographic Information (ISO/TC211) developed ISO 19132:2007 "location-based geographic information service reference model." According to our country, the international standards for the following series Series of Review.

Write a method --- the implementation of standards GB/T 1.1-2009 "Standardization Guide Part 1. Standard structure and drafting" GB/T 20000.2-2009 "Standardization Guide Part 2. the use of international standards";

--- Deleted the preface to the international standards;

--- Introduction of this standard uses the ISO 19132:2007 introduction, but made minor modifications;

--- For the ISO 19132:2007 and other international standards are adopted as our reference standard, this standard direct reference to our standards on behalf of the for the corresponding international standards;

--- Modify the original text with the latest technology applications incompatible Description. text translation appendix C.6 period to the effect that "This information is ideal for details and format depends on the user and internet access services through phone access is limited to words or language Sound information, and get access journey PDA or similar device through full-color map "; Currently, 3G mobile phones have been able to it provides graphics services, current technology does not meet the original application, this standard to increase the labeling will be explained;

--- In order to maintain traceability references, citations of entries use the original English label.

This standard was proposed by the State Bureau of Surveying and Mapping.

This standard by the National Geographic Information Standardization Committee (SAC/TC230) centralized.

This standard was drafted. Beijing NavInfo Technology Co., Ltd., National Geomatics Center of China, Beijing hypergraph Geographic Information Technology Surgery Ltd., Wuhan University.

Drafters of this standard. Huang Dong, Li Li, Sun Yuguo, CAO Xiao Hang, Li Lin, Li Kai.

Introduction

This standard framework for the establishment of a support system for location-based services (LBS) development. LBS is a software service that request and response Mode depending on the position of some specific things, these things can be real or conceptual. For example, as defined in ISO 19133 in now Tracking and navigation are based location services. Since the emergency response service position invariance, that is always very close to the requestor when Position, and therefore the location-based services. Environmental monitoring and correction also depends on the position and motion of pollution or other continuous process of change.

Even when the requester to obtain certain goods or services and convenient business location search, yellow pages directory service also depends on the position or the standard definition of location-based services (LBS) reference model and a conceptual framework, and describes the implementation group for interoperable LBS applications this principle. The conceptual framework involves or includes ontology, classification systems, design patterns and core LBS service abstract use UML representation specification. This standard is also the relationship between the conceptual framework and other frameworks, geographic information applications and services, and made into a client application Step instructions.

The system calculates the standard discussion of LBS Reference Model (RM-ODP, see ISO/IEC 10746-1) at a predetermined open distribution the first three fundamental justice perspective, they are.

a) target enterprise perspective --- refining system, scope and approach.

b) information Angle --- refinement process semantics and system information.

c) function calculates the perspective --- refining system decomposition.

The remaining two perspectives needs or only for example, they are.

Deployment d) Engineering Perspective --- refining infrastructure.

e) Technical Perspective --- refine enabling technologies.

Reference model and framework can be designed at all levels from concept to define software documentation. This standard.

--- The definition contained in the LBS in the conceptual framework and application types;

--- Establish general principles also apply to LBS mobile and fixed clients;

--- Predetermined data when roaming access interface;

--- Definition and other ISO geographic information standards in the framework of the relationship;

--- Identify other aspects in the field of LBS for further standardization.

This standard does not discuss the following questions.

--- Development of LBS rules;

--- General Principles for mobile clients and track targets roaming agreements.

2 Conformance

Any statement to this standard consistent product should meet the requirements of normative provisions and Appendix.

The consistency of this standard have a variety of meanings, depending on the type of entity declaration.

--- Choose to use the term semantic consistency as far as possible correspond with this standard;

--- Data consistency as UML can be used to implement a class type, pattern or design application specification data types the use of this standard can be mapped to the type;

--- Service request response message consistent use interface to maintain consistency, and packet data interface to maintain consistency.

Consistency can be declared by the standard, data structures, data models (such as encoding defined) or software mode. In all cases, the language Righteousness and data consistency is achieved. Consistency and services are limited to the software interface specifications or service-oriented architecture. Consistency in service the data structure as part of a larger hierarchical structure of the operation declared its consistency. (Such as XML SOA SOAP-based applications in the role. ) Details on conformance testing is given in Appendix A.