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Information engineering emphasizes a modeling tool called ______ relationship diagrams．A．entityB．classC．stateD．sequence

题目

Information engineering emphasizes a modeling tool called ______ relationship diagrams．

A．entity

B．class

C．state

D．sequence

相似考题

1.建筑信息模型BIM全称是( )A、Building;B、Information;C、Modeling;D、Mode

2.The entity-relationship（E-R）data model is based on a perception of a real world that consists of a clletion of basic objects,called（ ），and of relationships among these objects.An entity is a“thing”or"object"in the real world that is distinguishable from other objects.Entities are described in a database by asetof（请作答此空）:A relationship isan association among several entities.The set of all entities of the same type and the set of all relationships of the ametype are termed an entity sct and relationship set,respectively.The overall logical structure（schema）of a database can be expressed graphically by an E-R diagram,which is built up from the fllowing components:（ ）represent entity set,（ ）represent atributes,ete.In addition to entities and relations,the E-R model represents certain（ ）to which thecontents of a database must conform.The entity-relationship model is widely used in database design.A.keys B.attributes C.records D.Rows

3.The entity-relationship（E-R）data model is based on a perception of a real world that consists of a clletion of basic objects,called（请作答此空），and of relationships among these objects.An entity is a“thing”or"object"in the real world that is distinguishable from other objects.Entities are described in a database by asetof（ ）:A relationship isan association among several entities.The set of all entities of the same type and the set of all relationships of the ametype are termed an entity sct and relationship set,respectively.The overall logical structure（schema）of a database can be expressed graphically by an E-R diagram,which is built up from the fllowing components:（ ）represent entity set,（ ）represent atributes,ete.In addition to entities and relations,the E-R model represents certain（ ）to which thecontents of a database must conform.The entity-relationship model is widely used in database design.A.data B.things C.entities D.objects

4.The entity-relationship（E-R）data model is based on a perception of a real world that consists of a clletion of basic objects,called（ ），and of relationships among these objects.An entity is a“thing”or"object"in the real world that is distinguishable from other objects.Entities are described in a database by asetof（ ）:A relationship isan association among several entities.The set of all entities of the same type and the set of all relationships of the ametype are termed an entity sct and relationship set,respectively.The overall logical structure（schema）of a database can be expressed graphically by an E-R diagram,which is built up from the fllowing components:（ ）represent entity set,（ ）represent atributes,ete.In addition to entities and relations,the E-R model represents certain（请作答此空）to which thecontents of a database must conform.The entity-relationship model is widely used in database design.A.things B.objects C.conditions D.constrains

更多“Information engineering emphasizes a modeling tool called ______ relationship diagrams.A.e ”相关问题

  • 第1题：

    The entity-relationship（E-R）data model is based on a perception of a real world that consists of a clletion of basic objects,called（ ），and of relationships among these objects.An entity is a“thing”or"object"in the real world that is distinguishable from other objects.Entities are described in a database by asetof（ ）:A relationship isan association among several entities.The set of all entities of the same type and the set of all relationships of the ametype are termed an entity sct and relationship set,respectively.The overall logical structure（schema）of a database can be expressed graphically by an E-R diagram,which is built up from the fllowing components:（ ）represent entity set,（请作答此空）represent atributes,ete.In addition to entities and relations,the E-R model represents certain（ ）to which thecontents of a database must conform.The entity-relationship model is widely used in database design.

    A.rectangles
    B.lipses
    C.diamonds
    D.lines

    答案：B
    解析：

  • 第2题：

    MIDI enables people to use（ ）computers and electronic musical instruments.There are actually three components to MIDI,the communications"（ ）",the Hardware interface and a distribution（ ）called"Standard MIDI Files".In the context of the WWW,the most interesting component is the（ ）Format.In principle,MIDI files contain sequences of MIDI Protocol messages:However,when MIDI Protocol（请作答此空）are stored in MIDI files,the events are also time-stamped for playback in the proper sequence.Music delivered by MIDI files is the most common use of MIDI today.

    A.messages
    B.packets
    C.frame
    D.information

    答案：A
    解析：
    MIDI使得人们能够使用多媒体计算机和电子乐器。实际上MIDI有3种元素：通信协议、硬件接口和被称为标准MIDI文件的发布格式。在WWW环境中，最重要的元素是音频格式。在原理上，MIDI文件包含了MIDI协议报文序列。然而当MIDI协议报文被存储在MIDI文件中时，事件都被加上了时间戳，以便于按照适当的顺序回放。由MIDI文件提供的音乐是MIDI当前最通常的应用。

  • 第3题：

    目标记数结果Modbus配置变量选择为

    A．tool1.Out

    B．tool1.Out.blobNum

    C．tool1.Out.blobSet[0].score

    D．tool1.Out.targetGroupNum


    tool1.Out.targetGroupNum

  • 第4题：

    The entity-relationship（E-R）data model is based on a perception of a real world that consists of a clletion of basic objects,called（ ），and of relationships among these objects.An entity is a“thing”or"object"in the real world that is distinguishable from other objects.Entities are described in a database by asetof（ ）:A relationship isan association among several entities.The set of all entities of the same type and the set of all relationships of the ametype are termed an entity sct and relationship set,respectively.The overall logical structure（schema）of a database can be expressed graphically by an E-R diagram,which is built up from the fllowing components:（请作答此空）represent entity set,（ ）represent atributes,ete.In addition to entities and relations,the E-R model represents certain（ ）to which thecontents of a database must conform.The entity-relationship model is widely used in database design.

    A.rectangles
    B.llises
    C.diamonds
    D.lines

    答案：A
    解析：

  • 第5题：

    MIDI enables people to use （ ）computers and electronic musical instruments. There are actually three components to MIDI, the communications"（ ）", the Hardware interface and a distribution（ ）called "Standard MIDI Files". In the context of the WWW, the most interesting component is the （ ）Format. In principle, MIDI files contain sequences of MIDI Protocol messages: However, when MIDI Protocol（请作答此空）are stored in MIDI files, the events are also time-stamped for playback in the proper sequence. Music delivered by MIDI files is the most common use of MIDI today.

    A.messages
    B.packets
    C.frame]
    D.information

    答案：A
    解析：
    MIDI使得人们能够使用多媒体计算机和电子乐器。实际上MIDI有3种元素：通信协议、硬件接口和被称为标准MIDI文件的发布格式。在WWW环境中，最重要的元素是音频格式。在原理上，MIDI文件包含了MIDI协议报文序列。然而当MIDI协议报文被存储在MIDI文件中时，事件都被加上了时间戳，以便于按照适当的顺序回放。由MIDI文件提供的音乐是MIDI当前最通常的应用。

  • 第6题：

    1、目标记数结果Modbus配置变量选择为

    A．tool1.Out

    B．tool1.Out.blobNum

    C．tool1.Out.blobSet[0].score

    D．tool1.Out.targetGroupNum


    D

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