| 1. | Required system data flow model gives a functional view of the required system
所需系统数据流程模型以功能的观点来探讨所需系统。 |
| 2. | Current physical data flow model describes the functional aspect of the current environment
现时实体数据流程模型描述现时环境的功能。 |
| 3. | After the current physical data flow model is confirmed with users , logicalize it to produce the logical data flow model
与用户确认现时实体数据流程模型后，将之逻辑化，以编制逻辑数据流程模型。 |
| 4. | These options may be supported by technical documentation such as work practice model , logical data model and data flow model
这些选择可能需要某些技术性文件的支援，如工作实务模型、逻辑数据模型及数据流程模型。 |
| 5. | Two such viewpoints are represented by data flow modelling ( process point of view ) and logical data modelling ( data point of view )
其中两个审查观点是透过数据流程模型（工序的观点）及逻辑数据模型（数据的观点）来表示。 |
| 6. | However , these two views are static . data flow modelling does not show the sequence of processing while logical data modelling does not indicate how the data changes with time
可是，这两个观点是静态的；数据流程模型没有说明工序发生的先后，而逻辑数据模型则没有说明数据如何随著时间而改变。 |
| 7. | The data flow modelling technique is used during the analysis phase to provide a common vehicle , in the form of diagrams and associated descriptions , to communicate with users and among developers
数据流程模型数据流程模型是在系统分析阶段时所使用的技巧。这个模型以图表及辅以文字的方式，来作为系统发展人员之间及与用户沟通的共通方法。 |
| 8. | It investigates the information flow associated with the services currently provided , and describes them in the form of data flow model . at this point , the data flow model represents the current services with all their deficiencies
这个步骤是要调查现时所提供服务的相关资讯流程，并以数据流程模型描绘出来。在这步骤所制成的数据流程模型只需勾划出现有服务及其不足处，而毋须把需要改善的地方或新设施辑纳在内。 |
