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Difference between revisions of "Entity Data Model"


(Plant picture)
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[[File:UDOM_PlantPump.png|500 px]]
 
[[File:UDOM_PlantPump.png|500 px]]
  
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Of course, a plant consists of multiple pumps, each described with the same set of properties (TAG, vendor, power, maintenance data). The real pumps in the plant are distinguished by different property values found in the table.
 
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Revision as of 10:34, 18 December 2012

Introduction

Objectives


In an industrial environment we quite often need to

  • describe an industrial plant consisting of a bunch of different parts, each having a certain purpose and set of properties, and which are related in various ways
  • manage process or maintenance data of the plant and its features
  • do a high-performance cost-benefit analysis and create key performance indicators

Therefore we need to

15 px „Dissemble“ the system into theoretical blocks representing the real as well as intangible parts of the system.
15 px Identify the necessary properties of the block.s
15 px Think about how blocks are possibly related to each other.
15 px Think about the functions and features of blocks.

Plant picture


Lets start with a simple picture and have a look what blocks we find in a possible plant
UDOM PlantParts.png

A closer look at the "PUMP" block reveals its properties and property values
UDOM PlantPump.png

Of course, a plant consists of multiple pumps, each described with the same set of properties (TAG, vendor, power, maintenance data). The real pumps in the plant are distinguished by different property values found in the table.

Pump TAG Vendor Power Maintenance
#1 P0815 Andritz 2 kW Yearly
#2 P0816 Andritz 5 kW Monthly
#2 P0817 Sulzer 4 kW Yearly