IFB104编程设计代做、代写Python程序、Python语言编程调试

日期：2021-05-05 11:24

IFB104 Building IT Systems

Semester 1, 2021

2021-04-24 1

Assessment Task 2: Client’s Briefing #1 Transcript

Hello, I’m your client for this new software development project.

We want you to create a “news” application for our customers. Recent events have seen people

become very concerned about the accuracy, freshness, reliability and diversity of their

news sources. Our goal is to create a program that resolves all of these issues. It must have

an intuitive Graphical User Interface and a reliable back-end which extracts the latest data

from online sources.

For now we want you to focus on the user interface so that we have something to show our

investors. We need you to design and implement a suitable user interface using Python 3’s

Tk GUI module.

I’ve spoken to our boffins and they’ve created a demo to illustrate the idea.

[Runs the user interface demo]

As you can see the GUI is designed to give its user access to four different news sources in a

specific category. For illustrative purposes the boffins have chosen “politics” as their category

of interest (they’re very boring people!) and they’ve named the application “Not the Facebook

News” (they have an odd sense of humour!). The interface has a variety of widgets for

user control and displaying results.

We don’t want you to copy this prototype, but you must develop your own graphical user interface

with equivalent capabilities. Specifically:

? Your GUI’s window must have a title which identifies both the application and the

news category.

? Within the window there must be an image and a name which clearly identify your

application. The name and image can be separate widgets or can be combined as one,

as per our demo.

? There must be one or more widgets to allow the user to select the latest news from

four distinct sources. Our boffins have used radio buttons but there are other kinds of

widget that could be suitable for the job, such as menus or push buttons.

? There must be one or more widgets suitable for showing details of the currentlyselected

news story, including the headline, story abstract, publication time, news

source, web site address, and the web site’s hostname. I’ll explain more about all

these display requirements in my next briefing. In the prototype our boffins have allowed

space for all of these things in a big “label frame” widget on the right.

? There must be one or more widgets which let the user export the currently-selected

news story. I’ll explain what functionality is required for this in a later briefing. Our

boffins have used a push button for this purpose but there are other options such as a

“check” button which lets the user control whether or not data is exported automatically

whenever a different news source is chosen.

? There must be one or more widgets which let the user check the correctness of the data

against its original source. Again, I’ll say more about this later. And again, our

boffins have used a push button for this purpose.

IFB104 Building IT Systems

Semester 1, 2021

2021-04-24 2

? Finally, your GUI must have appropriate labels, graphics and layout to make its operation

completely clear to the user, without the need for any separate instructions.

For now you don’t need to implement any of the application’s back-end functionality. None

of the widgets in our boffins’ demo actually do anything as yet.

[Activates the various widgets in the GUI to show that they do nothing]

To sell the application to our backers we just need to see what the user interface will look

like. In particular, you don’t need to make a final decision about which news sources to use

as yet. Our boffins have chosen four which look promising—the ABC, Nine News, the Australian

Financial Review and the Brisbane Times—but this may change if these sites prove

difficult to work with later. Also, you don’t need to display logos for the news sources as

done here. Just their names will do. But you’re more than welcome to make your GUI as

visually interesting as possible.

I'll provide full requirements for the source web sites and what you need to extract from them

in my next briefing. However, if you want to make a head start while you’re working on the

GUI, you’ll need to find four entirely separate sites, within your chosen news category, that

have up-to-date stories each containing at least a headline, a short abstract, and a publication

time.

Our boffins chose “politics” as their category, but you can choose any frequently-updated aspect

of current affairs such as:

? Breaking news

? National news

? Local news

? Politics

? Business

? Science & Technology

? Entertainment

? Sports (but not a specific sport which may be out of season and therefore doesn’t get

updated regularly)

? and so on

As before we’ve provided you with a program template to help you get started.

[Shows the template]

Again, for cyber security reasons, you must identify yourself at the beginning of the program.

This template contains very little, just some “import” statements and a single function definition.

You don’t need this function at all for your current task, so you can ignore it for now.

All of your code must be developed at the very end of the file.

As you’ve done previously you must upload your submission to our IT system before the

deadline, which is Sunday, May 9th. Please upload drafts as insurance against system failures

(at your end and ours). And this time you’ll need to upload both a Python program and

IFB104 Building IT Systems

Semester 1, 2021

2021-04-24 3

any image files you have used in your GUI. Put these items in a “zip” archive and upload it

as a single file. Do not use any other compression formats such as RAR or 7Z.

As usual, so that it will work on any platform, your program must be portable and must run in

a standard Python 3 environment. It must not rely on any modules that need to be downloaded

and installed separately, such as “Pillow”, because we won’t be able to assess your solution.

That’s all for now. I’ll provide you with full details of the necessary back-end functionality

after you’ve delivered your user interface design.