Assignment Instructions

Data Analysis.

 

 

 

Complete the following exercises from the Process Modelling Workbook available from Blackboard under Assignment Two: Workflow Modelling with DFDs section. These exercises aim to further develop your familiarity with the concepts and terms of workflow modelling using data flow diagrams for this assignment.

6.1 Data Flow Diagram Exercises
For the exercise below:
1. Produce a System outline (refer to page 2) (20 Marks)
2. Produce a Context Diagram. (30 Marks)
3. Produce a Top Level Dataflow Diagram. (50 Marks)

6.2.5 Rodney Gas Billing System
Rodney has just begun to provide gas to a limited number of customers. It is expected that the number of customers will increase as further gas pipes are installed. Currently the billing is done manually, but it is planned to computerise the system in anticipation of increased volumes of users. You have been requested to investigate the system and prepare a system proposal.
This is what you have found out from your information gathering;
The meter reader visits the gas customers every six weeks in order to read their gas meter. When all readings have been logged for the period, the meter reader brings the log into head office where the accounts clerk copies the readings into a “Customer Gas Meter Readings” file which contains, for each customer, details of their previous readings.
To produce the bills for the customers, the accounts clerk subtracts the customer’s previous meter reading from their current reading, in order to find the total vol- ume of gas used for the period. This is multiplied by the gas charge rate which the clerk finds in a “Gas Charge Rates” file. If this is the first bill for the customer, a charge for installation may be added, and sometimes there are maintenance charges. These extra charges are supplied by the Maintenance Department. The gas charge rates are set annually by management. All charge amounts are added to any previous amounts owed which are found for the customer in the “Outstanding Bills” file. The current bill is posted to the customer.
Customers post their payments to the Rodney offices. The payments are banked and a “List of Deposits” is returned by the bank. This list is compared to the “Outstanding Bills” and paid bills are placed in the “Paid Invoices” file. Partial payments are recorded on the matching bill which remains in the “Outstanding Bills” file.
For the Rodney Gas Billing System
1. Produce a System outline (as below refer to page 2 of Litchfield(2017)) (20 Marks)
System Outline

Title System Document Name Sheet
Input Processes
Files (Datastores)
Outputs
External Entities
Author Date
Figure 1.1: Sample system outline. A large collection of these will be created to meet the needs of a complex system.

 

1. Produce a Context Diagram. (30 Marks)

 

 

 

2. Produce a Top Level Dataflow Diagram. (50 Marks)

 

 

 

 

 

The post Data Analysis first appeared on Bestchoice Writers.

Data Analysis

Calculate Price


Price (USD)
$

Why Choose Us For Your Assignment?

Privacy

We value all our customers' privacy. For that reason, all information stays private and confidential and will never be shared with third parties.

Punctuality

With our service you will never miss a deadline. We use strict follow-ups with our writers to ensure that all papers are submitted on time.

Authenticity

We have no tolerance for plagiarism. All papers go through thorough checking to ensure that no assignments contain plagiarism.

Money Back

You feel unsatisfied with your results? No worries. We offer refunds to our customers if any paper is not written according to the instructions.

Clients Love Us

Client #121678
Client #121678
Read More
This is by far the best I have ever scored in a custom essay. I am surprised the writer handled this assignment so well despite the short notice. I will definitely use your service next time.
Client #21702
Client #21702
Read More
When I was recommended to you by my friends, I wasn't sure you could deliver excellent results for Masters research papers until I submitted my first order. I am all yours now.
Client #20730
Client #20730
Read More
Excellent Services! You are the only assignment helper I can rely on. I have worked with many before and your services are exceptional. I have recommended you to my friends and the results are similar.
Client #20387
Client #20387
Read More
I rarely write reviews online but your services are worth promoting. My paper was so urgent I was sure I was gonna miss the deadline but you turned things around. You are awesome!
Client #20189
Client #20189
Read More
I am a satisfied customer. I know I should have given a 5 star because you deserve it but I will give 4.6 because I almost missed a deadline because of a revision. Luckily it was minor and the writer acted promptly.
Client #20187
Client #20187
Read More
Great paper but there is still some room for improvement. I am impressed by your fast responses and how you tacked my concerns professionally. Thank you for being among the few genuine essay writing service providers.
Client #19783
Client #19783
Read More
I can't thank you enough for being a great part of my college life. I recommended you to two more of my friends. I am sure they will be making their orders soon. I love the fact that you offer free pages for referrals. I will be referring a few more and maybe I won't have to pay for my next two paper, LOL.
Previous
Next