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Siphiwe went home for a long weekend. You would think that he would come back rested and happy, having eaten his mother’s amazing food all day long instead of his usual takeaways, in one of the most beautiful places in the country too. You would be wrong. In class, he frequently stared out the window with an intense frown on his face. And between classes, he didn’t say much and didn’t eat like his

succurely June 23, 2022

Siphiwe went home for a long weekend. You would think that he would come back rested and happy, having eaten his mother’s amazing food all day long instead of his usual takeaways, in one of the most beautiful places in the country too. You would be wrong.

In class, he frequently stared out the window with an intense frown on his face. And between classes, he didn’t say much and didn’t eat like his usual ravenous self either. So when somebody jokingly told him that you can’t live on water alone, his answer was serious. “No … no, you cannot.”

After a lot of prodding, he finally told you what had happened. His father had sat him down and explained that he would no longer be receiving any money from the family once he graduates— no car repayments, no entertainment allowance, no rent … Nothing. Siphiwe had never thought about what would happen after graduation. He was so focussed on his studies that it had never occurred to him that he might have to fend for himself in less than two years.

Siphiwe was worried that he might not be able to maintain his lifestyle if he had to pay for everything himself. What would he have to sacrifice to make ends meet? He didn’t even have a girlfriend yet, and if he couldn’t go out anymore, how would he ever find her? And even worse, if he did find her, how would he keep her without any money to spend on her? The myriad questions were spinning around in his head with no end in sight.

You pointed out to him that he needed some hard data. Without data, he couldn’t know if he even had financial trouble looming, let alone what he could do to improve his situation if he did.

In this Portfolio of Evidence, you will be creating an application that can be used for personal budget planning. That should help Siphiwe understand his potential problems much better.

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Instructions

This Portfolio of Evidence consists of three parts – two parts submitted during the semester and a final submission at the end of the semester. The parts build on one another, so make sure that you keep a copy of your work in a safe place.

The requirements of real software projects frequently do change, often in quite unexpected ways. Here you have the benefit of knowing what all the requirements are going to be in advance. So, make use of the opportunity! Reading all three parts before starting with the first one will minimise any reworking for later parts.

The rubrics that will be used to mark your submissions appear at the end of this document. Please pay attention to the weighting of items in the rubrics.

Note that marks will be awarded for running functional software, not just source code. So, make sure that your source code compiles and that the readme file contains enough information about running the software.

Part 1 — Object-Oriented Programming			(Marks: 100)


Learning Units: LU1 – 2
Assessment:

Assessment/Deliverable	Marks	Weight	Duration

Part 1	100	25%	15hrs

Using C# and Visual Studio, design and implement a standalone command-line application that fulfils the following requirements:

The user shall be able to enter the following values:

1. Gross monthly income (before deductions).

1. Estimated monthly tax deducted.

1. Estimated monthly expenditures in each of the following categories:

1. 1. Groceries

1. 1. Water and lights

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1. 1. Travel costs (including petrol)

1. 1. Cell phone and telephone

1. 1. Other expenses

The user shall be able to choose between renting accommodation or buying a property.

If the user selects to rent, the user shall be able to enter the monthly rental amount.

If the user selects to buy a property, the user shall be required to enter the following values for a home loan:
1. Purchase price of the property

1. Total deposit

1. Interest rate (percentage)

1. Number of months to repay (between 240 and 360)

The software shall calculate the monthly home loan repayment for buying a property based on the values that the user entered. (See https://www.siyavula.com/read/maths/grade-10/finance-and-growth/09-finance-and-growth-03 for more information on how to calculate this).
If the monthly home loan repayment is more than a third of the user’s gross monthly income, the software shall alert the user that approval of the home loan is unlikely.

The software shall calculate the available monthly money after all the specified deductions have been made.
The software shall not persist the user data between runs. The data shall only be stored in memory while the software is running.

Non-functional requirements:

You are required to use internationally acceptable coding standards. Include comprehensive comments explaining variable names, methods, and the logic of programming code.

You are required to use classes and inheritance. Create an abstract class Expense, from which HomeLoan, etc., can be derived.
Store the expenses in an array.

Submit the following items for this part:

Source code.

A readme file with instructions for how to compile and run the software.

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	Part 2 — Advanced C# Features			(Marks: 100)


	Learning Units: LU1 – 3
	Assessment:

	Assessment/Deliverable	Marks	Weight	Duration

	Part 2	100	30%	15hrs

You will continue working on the application created in Part 1. Implement the feedback provided by your lecturer on Part 1 before continuing with Part 2. Marks will be awarded for this (10%).

The application must still perform all the functions from Part 1, with the following features added:

The user shall be able to choose whether to buy a vehicle.

If the user selects to buy a vehicle, the user shall be required to enter the following values for vehicle financing:
1. Model and make.

1. Purchase price.

1. Total deposit.

1. Interest rate (percentage).

1. Estimated insurance premium.

The software shall calculate the total monthly cost of buying the car (insurance plus loan repayment). Assume that all cars will be repaid over a period of five years.

The software shall notify the user when the total expenses exceed 75% of their income, including loan repayments.
Display the expenses to the user in descending order by value.

Non-functional requirements:

You are required to use internationally acceptable coding standards. Include comprehensive comments explaining variable names, methods, and the logic of programming code.

You are required to use classes and inheritance.

You must use a generic collection to store the expenses and no longer an array.

You must use a delegate to notify the user when expenses exceed 75% of their income. Submit the following items for this part:

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Source code.

A readme file containing:

1. Instructions for how to compile and run the software; and

1. A brief description (100 to 200 words) of what you changed based on your lecturer’s feedback.

Portfolio of Evidence (POE) — Windows Presentation Foundation (Marks: 100)

Learning Unit: All

Assessment:

Assessment/Deliverable	Marks	Weight	Duration

Final Completed POE	100	35%	15hrs

You will continue working on the application created in Part 2. Implement the feedback provided by your lecturer on Part 2 before continuing with the final POE submission. Marks will be awarded for this (10%).

For this part, you are required to update your application to have a graphical user interface (GUI) built using either Windows Presentation Foundation (WPF) or Universal Windows Platform (UWP). Note that UWP will require additional research, so choose wisely.

All the same functionality must be available in the new user interface that was in the command line application from Part 2 (just presented in a more user-friendly way), with your choice of one of the following features added:

The user shall be able to choose to save up a specified amount by a certain date for a specified reason, e.g. save R100 000 for an honours degree over five years. Then, given the interest rate that will be earned on the savings, calculate how much the monthly saving

should be to reach the goal.

Display the monthly income, expenses and account balance (assume the balance starts at 0) as a graph over time, for a given period (e.g., five years).

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Submit the following items for this part:

Source code.

A readme file containing:

1. Instructions for how to compile and run the software; and

1. A brief description (100 to 200 words) of what you changed based on your lecturer’s feedback.

A short user manual (no more than 2 000 words) including screenshots that explains how to use the app. You may use any application of your choice to create the user manual, but the file that you submit must be a .PDF export of the document.

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Appendix A

Assessment Sheet (Marking Rubric)

Please note: Tear off this section and attach it to your work when you submit it.

MODULE NAME:

MODULE CODE:

PROGRAMMING 2A

PROG6211

PROGRAMMING 2A

PROG6221

STUDENT NAME:

STUDENT NUMBER:

RUBRIC 1

Levels of Achievement

Feedback

To be awarded full marks for

Excellent

Good

Developing

Poor

these elements of Part 1,

Score Ranges Per Level (½ marks possible)

students need to have:

11—15

9—10

0—7

App Functionality: User can

All values can be

All the values can

Only some of the

The values cannot

entered, and good

be entered, but

values can be

be entered, or the

enter values for income, tax and

error handling

entered, or no error

app crashes

expenditures.

implemented.

could be improved.

handling

regardless of what

implemented.

the user enters.

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RUBRIC 1 [continued]		Levels of Achievement			Feedback
In order to be awarded full	Excellent	Good	Developing	Poor
marks for these elements of		Score Ranges Per Level (½ marks possible)
Part 1, students need to have:
	11—15	9—10	8	0—7
App Functionality: Rental and	All values can be	All the values can	Only some of the	The values cannot be
App Functionality: Rental and	entered, and good	be entered, but	values can be	entered or the app
home loan entry implemented	entered, and good	be entered, but	values can be	entered or the app
home loan entry implemented	error handling	error handling	entered, or no error	crashes regardless of
correctly.	error handling	error handling	entered, or no error	crashes regardless of
correctly.	implemented.	could be improved.	handling	what the user enters.
	implemented.	could be improved.	handling	what the user enters.
			implemented.

	11—15	9—10	8	0—7
	The home loan	The home loan	The home loan	Home loan repayments
App Functionality: Home loan	repayments are	repayments are	repayments are	are not calculated, or the
calculations and warning	calculated correctly,	calculated	calculated partially	calculation is completely
implemented correctly.	and the alert is	correctly, but the	correctly, and the	wrong.
	displayed in a user-	alert is never	alert is never
	friendly way.	displayed.	displayed.

	11—15	9—10	8	0—7
App Functionality: Available	Available monthly	Available money	Available money is	Available money is not
monthly money calculated	money calculated	was calculated, but	partially correctly	calculated correctly and is
correctly and displayed.	and displayed.	the display could be	calculated or not	not displayed.
		improved.	displayed.

Application Structure:	8—10	7	5—6	0—4
Application Structure:	The class structure is	The class structure	The class structure	The class structure is
Application makes use of	The class structure is	The class structure	The class structure	The class structure is
Application makes use of	logical and easy to	is mostly logical,	is somewhat logical,	entirely illogical and
classes and inheritance	logical and easy to	is mostly logical,	is somewhat logical,	entirely illogical and
classes and inheritance	follow.	with a few small	with quite a few	confusing.
logically.	follow.	with a few small	with quite a few	confusing.
logically.		errors.	errors.
		errors.	errors.

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RUBRIC 1 [continued]			Levels of Achievement			Feedback
In order to be awarded full		Excellent	Good	Developing	Poor
marks for these elements of			Score Ranges Per Level (½ marks possible)
Part 1, students need to have:
		8—10	7	5—6	0—4
Application Structure: The		Expenses are stored	Most, but not all, of	Only some of the	Expenses are not stored
expenses are stored in an		in an array, and the	the expenses are	expenses are stored	in an array.
array.		array size is	stored in the array.	in the array.
		managed well.

		8—10	7	5—6	0—4
Coding Standards: The code is		Code is well	Code is well	Code is structured	Code is all in one file
well structured and		structured with good	structured with	somewhat well with	with no comments.
documented.		comments explaining	minor mistakes and	little or no
		the logic.	mostly commented.	comments.

		8—10	7	5—6	0—4
		An excellent readme	The readme file	The readme file	No readme file is
Documentation: The readme		file is included that	presents some	contains information	included, or the readme
file provides enough		explains all the	information about	about running the	file doesn’t provide any
information to run the app.		required details	running the app but	app, but it is hard to	useful information
		about running the	could be more	understand or	about running the
		app.	detailed.	doesn’t work.	application.

	5-4		3	2-1	0
Other Marks: Advanced		Excellent use of	Good use of features	Some features that	No features that go
Other Marks: Advanced		features that go	that go above and	go above and	above and beyond what
features not covered in class		features that go	that go above and	go above and	above and beyond what
features not covered in class		above and beyond	beyond what was	beyond what was	was learned in class was
(Bonus Marks).		above and beyond	beyond what was	beyond what was	was learned in class was
(Bonus Marks).		what was covered in	learned in class was	learned in class was	used.
		what was covered in	learned in class was	learned in class was	used.
		class.	used.	used.

PART 1 SUBTOTAL						/100

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RUBRIC 2		Levels of Achievement
RUBRIC 2		Levels of Achievement

To be awarded full marks for	Excellent	Good	Developing	Poor
To be awarded full marks for	Excellent	Good	Developing	Poor
these elements of Part 2,
these elements of Part 2,		Score Ranges Per Level (½ marks possible)
students need to have:		Score Ranges Per Level (½ marks possible)
students need to have:

Feedback

	8—10	7	5—6	0—4
Updates: All the feedback	Excellent	Most feedback was	Some feedback was	Little or no
provided on Part 1 has been	implementation of	implemented.	implemented.	feedback was
implemented.	all feedback			implemented.
	provided.

	15—20	11—14	10	0—9
App Functionality: The user can	All values can be	All the values can	Only some of the	The values cannot
	entered, and good	be entered, but	values can be	be entered or the
successfully capture the details
	error handling	error handling	entered, or no error	app crashes
for a vehicle.
	implemented.	could be improved.	handling	regardless of what

			implemented.	the user enters.

	15—20	11—14	10	0—9
App Functionality: The	The vehicle loan	The vehicle loan	The vehicle loan	The vehicle loan
App Functionality: The	calculations work	calculations most	calculations are	calculations are not
calculations for the vehicle loan	calculations work	calculations most	calculations are	calculations are not
calculations for the vehicle loan	perfectly.	work correctly.	implemented, but	implemented or
works correctly.	perfectly.	work correctly.	implemented, but	implemented or
works correctly.			most don’t work	don’t work at all.
			most don’t work	don’t work at all.
			correctly.

App Functionality: The expenses are displayed in descending order according to value.

8—10

The expenses are

excellently

displayed in

descending order.

The expenses are

displayed in

descending order,

but the display

could look better.

5—6

The expenses are

displayed but not in

descending order according to value.

0—4

The expenses are

not displayed at all.

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RUBRIC 2		Levels of Achievement			Feedback
RUBRIC 2		Levels of Achievement			Feedback

To be awarded full marks for	Excellent	Good	Developing	Poor
To be awarded full marks for	Excellent	Good	Developing	Poor
these elements of Part 2,
these elements of Part 2,		Score Ranges Per Level (½ marks possible)
students need to have:		Score Ranges Per Level (½ marks possible)
students need to have:

	8—10	7	5—6	0—4
Application Structure: The	The expenses are	Most of the	Some of the	The expenses are
expenses are stored in a generic	correctly stored in a	expenses are stored	expenses are stored	stored in an array
collection.	generic collection.	in a generic	in a generic	or a non-generic
		collection.	collection.	collection.

	8—10	7	5—6	0—4
	The 75%	The 75%	The 75%	The 75% expenses
Application Structure: The 75%	notification is	notification is	notification is	notification is not
expenses notification is	excellently	adequately	adequately	implemented at all
implemented using a delegate.	implemented using	implemented using	implemented,	or doesn’t work at
	a delegate.	a delegate.	something other	runtime
			than a delegate.

	8—10	7	5—6	0—4
Coding Standards: The code is	Code is well	Code is well	Code is structured	Code is all in one
well structured and	structured with	structured with	somewhat well	file with no
documented.	good comments	minor mistakes and	with little or no	comments.
	explaining the logic.	mostly commented.	comments.

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RUBRIC 2			Levels of Achievement			Feedback
RUBRIC 2			Levels of Achievement			Feedback

To be awarded full marks for		Excellent	Good	Developing	Poor
To be awarded full marks for		Excellent	Good	Developing	Poor
these elements of Part 2,
these elements of Part 2,			Score Ranges Per Level (½ marks possible)
students need to have:			Score Ranges Per Level (½ marks possible)
students need to have:

		8—10	7	5—6	0—4
		An excellent	The readme file	The readme file	No readme file is
Documentation: The readme		readme file is	presents some	contains	included, or the
Documentation: The readme		included that	information about	information about	readme file doesn’t
file provides enough		included that	information about	information about	readme file doesn’t
file provides enough		explains all the	running the app but	running the app,	provide any helpful
information to run the app.		explains all the	running the app but	running the app,	provide any helpful
information to run the app.		required details	could be more	but it is hard to	information about
		required details	could be more	but it is hard to	information about
		about running the	detailed.	understand or	running the
		app.		doesn’t work.	application.

	[5-4]		[3]	[1—2]	[0]
Other Marks: Advanced		Excellent use of	Good use of	Some features that	No features that go
Other Marks: Advanced		features that go	features that go	go above and	above and beyond
features not covered in class		features that go	features that go	go above and	above and beyond
features not covered in class		above and beyond	above and beyond	beyond what was	what was learned in
(Bonus Marks).		above and beyond	above and beyond	beyond what was	what was learned in
(Bonus Marks).		what was covered	what was learned in	learned in class was	class was used.
		what was covered	what was learned in	learned in class was	class was used.
		in class.	class was used.	used.

PART 2 SUBTOTAL						/100

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RUBRIC 3 (POE)

Levels of Achievement

Feedback

To be awarded full marks for these

Excellent

Good

Developing

Poor

elements of the final Portfolio of

Score Ranges Per Level (½ marks possible)

Evidence, students need to have:

8—10

5—6

0—4

Updates: All the feedback provided

Excellent

Most feedback

Some feedback

Little or no

implementation

was

feedback was

on part 2 has been implemented.

of all feedback

implemented.

provided.

8—10

5—6

0—4

All values can be

All the values can

Only some of the

The values cannot

App Functionality: User can enter

entered, and

be entered, but

values can be

be entered or the

good error

error handling

entered or no

app crashes

values for income, tax and

handling

could be

error handling

regardless of

expenditures.

implemented.

improved.

implemented.

what the user

enters.

11—15

9—10

0—7

Rental and home

loan functionality

App Functionality: Rental and home

is excellently

implemented

not implemented

loan functionality working correctly.

implemented in

with some errors.

with lots of

or not working at

the new user

errors.

all.

interface.

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RUBRIC 3 (POE)

Levels of Achievement

Feedback

To be awarded full marks for these

Excellent

Good

Developing

Poor

elements of the final Portfolio of

Score Ranges Per Level (½ marks possible)

Evidence, students need to have:

11—15

9—10

0—7

Car purchase

Car purchase n

Car purchase

App Functionality: Car purchase

functionality is

functionality was

functionality

functionality is

excellently

implemented

not implemented

working correctly.

implemented in

with some errors.

with lots of

or not working at

the new user

errors.

all.

interface.

15—20

11—14

0—9

App Functionality: New savings or

New feature

A new feature

The new feature

excellently

was implemented

is not

graph feature working correctly.

implemented.

with some minor

but caused lots of

implemented or

errors.

not working.

8—10

5—6

0—4

The user interface

Usability: The user interface is easy

is excellently

is well

can be used but is

is completely

implemented and

implemented

not very logical.

confused and

to use.

very easy to use.

with a few minor

illogical.

usability

problems.

Documentation: The user manual is

11—15

9—10

0—7

well-structured with useful

Complete user

Some information

Not included or

screenshots.

manual included.

is included.

almost no detail.

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RUBRIC 3 (POE)

Levels of Achievement

Feedback

To be awarded full marks for these

Excellent

Good

Developing

Poor

elements of the final Portfolio of

Score Ranges Per Level (½ marks possible)

Evidence, students need to have:

Mostly complete

user manual

included.

5-4

1—2

An excellent

The readme file

No readme file is

readme file is

presents some

contains

included, or the

Other Marks: The readme file

included that

information

readme file

provides enough information to run

explains all the

about running the

doesn’t provide

the app.

required details

app but could be

app, but it is hard

any helpful

about running the

more detailed.

to understand or

information

app.

doesn’t work.

about running the

application.

5-4

1—2

Excellent use of

Good use of

Some features

No features that

Other Marks: The student has used

features that go

that go above and

go above and

advanced features not covered in

above and

beyond what was

class (Bonus Marks).

beyond what was

learned in class

covered in class.

learned in class

was used.

POE SUBTOTAL

/100

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