过程建模作业代写 Process Modelling Introduction

Process Modelling I

过程建模作业代写 A Context Diagram is used to depict the boundary of the System Of Interest (SOI) and the data flows in and out of the SOI. It

Introduction:  过程建模作业代写

In this module, we will look at Context Diagram and Level 0 Data Flow Diagram.

过程建模作业代写

A Context Diagram is used to depict the boundary of the System Of Interest (SOI) and the data flows in and out of the SOI. It shows the external entities that interact with the SOI. It is important to note that
external entities are not necessarily have to be human actors in the SOI. They can be other systems or data storage that exchange data with SOI. For example, some organisations use a central authentication system for all its information systems. Therefore, any new system will need to interact with that authentication system. A Level 0 Data Flow Diagram shows the highest-level processes in a SOI and the data flows through
these processes. You will see some examples of both diagrams in the Essential Resources. Please remember the following when drawing a Context Diagram or a Level 0 DFD:  过程建模作业代写

Both diagrams contain arrows between elements. Each arrow shows the direction of data flows.

Each arrow is labelled with the names of data that flows between the two elements. It must be a noun, e.g. Customer Info, Weekly Report, Student Info. A common mistake is to label the arrows with
a verb or a verbal phase as if they indicate what an external entity can do with the system.

DFD is a set of hierarchical diagrams. Each process should be numbered with decimal notations, e.g. 1 (Level 0 DFD), 1.1 (Level 1DFD), 1.1.1 (Level 1 DFD).

DFD shows a static snapshot of the data flow in this system. Although DFD is used to model processes, it is NOT used to model the sequence of process. The numbering of processes does not indicate any chronological order.

Two data storages cannot be connected without a process in between.  过程建模作业代写

Essential Resources:  过程建模作业代写

Process modelling

Please read the chapter 6. It helps students understand how process modelling is done using Context Diagrams and DFDs. VValacich, J., Hoffer, J., George, J., Valacich, J., Hoffer, J., George, J., Valacich, J., Hoffer, J., George, J., & Valacich, J. (2015). Essentials of Systems Analysis and Design, Global Edition PDF Ebokk, Global Edition. Pearson Education, Limited. Retrieved from https://ebookcentral-proquest-
com.torrens.idm.oclc.org/lib/think/reader.action?docID=5187058&ppg=181

Foundation of process modelling  过程建模作业代写

This wonderful course by Haydn Thomas has everything  that the students should know about process modelling. Context Diagrams and DFDs are discussed in detail. Students are encouraged to attempt all the Quiz at the end of every module. Thomas, H. (2016, November 30). Business Analysis Foundations: Business Process Modelling [Video file]. Retrieved from https://www.linkedin.com/learning/business-analysis-foundationsbusiness-process-modeling/the-purpose-of-the-context-diagram? u=56744473

Learning Activity:
Learning Activity 1: Discussion forum post  过程建模作业代写

Using the example of an online shopping store (e.g. http://www.amazon.com.au/ or https://www.ebay.com.au):
1. Draw a context diagram and a level-0 DFD diagram that represent that online shopping store.
2. Briefly explain the main goal of each process and each data source and sink.
3. Post your response along with the two diagrams onto
Module 3 discussion forum Read other students’ posts. Do you agree with their diagrams? Check whether they have used the correct context diagram and DFD notations. Comment on at least two students’ posts and provide constructive feedback to them.

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