object model

Feature model

Also called Feature model The whole geographical space studied is regarded as a airspace, and geographical phenomena and spatial entities are distributed in the airspace as independent objects. According to its spatial characteristics, it is divided into four basic objects: point, line, face and body. Each object corresponds to a group of related attributes. Objects may also maintain specific relationships with other separated objects, such as topological relationships of points, lines, faces, and bodies.^[1]

Chinese name: Object Model Technology
Foreign name: object modeling technique

Alias: Feature model^[1]
Introduction: System development technology
Technical characteristics: Object model definition

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one brief introduction
two Features

brief introduction

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Object Model Technology （object modeling technique, OMT ）Yes GE Object model technology is a set of system development technology. It uses object-oriented Based on the idea of, through abstracting the problem, a set of related models are constructed. These models describe the "classes and objects" and their relationships in the real world, and represent the static data structure of the target system, so that it can comprehensively capture Problem space Information for.

Features

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Object Model Technology The information received during analysis is constructed into three types of models, namely, object model functional model and dynamic model 。 The three models describe the system from different perspectives, focusing on one aspect of the system respectively, and combine to form a complete description of the system. Figuratively, the function model defines "what to do", the state model defines "when to do", and the object model defines "who to do".

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