Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

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Chapter 3 · Decision Support Model (IUWS-DSM) 87 Very importantly, the user friendly Graphical User Interface (GUI) must be developed, so that the software can be easily controlled by water engineers and city planners. Moreover, the function of guidance, prompts, and instant help should be embedded, too. For example, the compulsory and optional items of input can be labelled with different backgrounds and likewise, the user input values and default values can be displayed in different colours. As two main modules, Model Engine and Database are explained a bit more as follows. 3.6.2 Model engine Most functions and tasks are achieved by the model engine. Based on the planning procedure established in § 3.2, the calculation and comparison that are introduce in § 3.4 and § 3.5 are realised by the model engine. Though the decision making polices developed in § 3.3 are stored in the database, the model engine has the right to control and call them to infer the solutions. The model engine is in charge of the communication between model users and the IUWS-DSM, other software and the IUWS-DSM, as well as between modules inside the IUWS-DSM. 3.6.3 Database Based on the structure of the IUWS-DSM, eight subsets are built up in the database, i.e. 1. System Planning, 2. Water Sources, 3. Treatment Facilities, 4. Conveying Systems, 5. Water Usage Profiles, 6. Quality Standards, 7. Evaluation Tools, 8. Expert Knowledge (Figure 40). As categorised above, the subsets 1 and 2 contain the project information, and the subsets 3 to 6 contain the general information, where the subsets 7 and 8 are the knowledge base. The corresponding tables in database are established as the examples and displayed in Appendix 1. Structure of Database in the Software Database of IUWS-DSM System Planning water entity: type ZONE water entity: type GROUP Water Sources local external Project Information Treatment Facilities on-site construction package plant Conveying Systems pipes & canals ancillary works vehicles Water Usage Profiles social & commercial communal & ecological industrial & special General Information Quality Standards raw water desired water used water Figure 40: Structure of Database in the Software Evaluation Tools cost estimation energy assessment Expert Knowledge Knowledge Base decision making rules
88 New Conception and Decision Support Model for IUWS The subset of System Planning is for requesting and organising the basic planning information of the project, which is corresponding with the hierarchy of the IUWS. The pattern tables are given in Appendix 1.1. Likewise, the information of available and possible water sources are requested and stored in the subset of Water Sources, where the pattern tables are given in Appendix 1.2. The subset 3 stores the information of treatment facilities including all possible treatment trains with their application conditions, treatment purposes, advantage and disadvantages. This information provides fully support when model users present the planning results to decision makers or the public. The subset 4 stores technical information of pipes, ancillary works and vehicle transport system, and the corresponding pattern tables are in Appendix 1.4. Similarly, the pattern tables for EUWUP and water standards are built up in Appendix 1.5 and Appendix 1.6. Therewith, an example of the water usage profile is demonstrated. It needs to be pointed out that EUWUP and water standards have the attribute of country/region, as different countries or regions have different situations. Especially it is suggested establishing one general data set as the default values including EUWUPs, water standards and cost functions, so that even if the local information is not adequate, the software can still calculate the water system in the most normal/possible situation. Knowledge base contains all information introduced in § 3.3, § 3.4 and § 3.5. During the application of the software, the relevant information, i.e. the general information and the knowledge base, need to be supplemented constantly.
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New Conception and Decision Support
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Acknowledgements By this chance, I
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Contents Indices I TABLES .........
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Indices III 3.6 Realisation Method
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Indices V Table 32: Sheet of averag
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Indices VII Figure 31: Cost estimat
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Definitions term definition & expla
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Abstract Indices XI Traditionally,
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2 New Conception and Decision Suppo
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Chapter 2 New Conception Chapter 2
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Composition of Modern Urban Water S
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2.1.4.1 water quality Chapter 2 ·
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Chapter 2 · New Conception 15 Aust
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Chapter 2 · New Conception 17 sepa
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Classifcation of Urban Water Treatm
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2.1.4.3 conveying system Chapter 2
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Chapter 2 · New Conception 27 syst
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General Priority of Water Sources C
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Chapter 2 · New Conception 33 Sing
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Appendix.Table 16: Used water amoun
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Appendix.Table 17: Determination of
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Chapter 3 Decision Support Model (IUWS-DSM) - Tubdok

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