SWEN221 (2022) - Software Development


This course develops a deeper understanding of object- oriented programming and associated practices. The focus is on programming techniques at the micro scale. Topics include: inheritance, polymorphism, genericity, error handling, testing and debugging. A sequence of short assignments will develop the key ideas and practices; rigour in testing will be developed through (automated) assessment of programme correctness.

Course learning objectives

Students who pass this course should be able to:

  1. Implement, test, and debug object-oriented programs using all the facilities of the Java programming language, including exceptions, generics, assertions, and concurrency; (3(b),3(c),3(f))
  2. Appreciate the range of programming techniques available, the strengths and weaknesses of particular techniques, and be able to choose and apply an appropriate programming technique to a given problem; (3(b),3(f))
  3. Understand the range of programming tools available, their different strengths and weaknesses, and be able to choose the appropriate tools for a software development task; (3(b),3(f))
  4. Use appropriate programming tools, such as development environments, test harnesses, frameworks, and libraries. (3(b),3(f))

Course content

2022: The course is primarily offered in-person, and there are components such as tests, labs, tutorials, and marking sessions which require in-person attendance. There will be remote alternatives for all the components of the course, but these are only available to students studying from outside the Wellington region. The remote option for tests will use a Zoom-based system for online supervision of the tests. 
Students taking this course remotely must have access to a computer with camera and microphone and a reliable high speed internet connection that will support real-time video plus audio connections and screen sharing.  Students must be able to use Zoom; other communication applications may also be used. A mobile phone connection only is not considered sufficient.   The computer must be adequate to support the programming required by the course: almost any modern windows, macintosh, or unix laptop or desktop computer will be sufficient, but an Android or IOS tablet will not.

Withdrawal from Course

Withdrawal dates and process:


Dr Michael Homer

Teaching Format

This course will be offered in-person and online.  For students in Wellington, there will be a combination of in-person components and web/internet based resources. It will also be possible to take the course entirely online for those who cannot attend on campus, with all the components provided in-person also made available online.
During the trimester there will be three lectures per week.

Student feedback

Student feedback on University courses may be found at: http://www.cad.vuw.ac.nz/feedback/feedback_display.php

Dates (trimester, teaching & break dates)

  • Teaching: 28 February 2022 - 03 June 2022
  • Break: 11 April 2022 - 24 April 2022
  • Study period: 06 June 2022 - 09 June 2022
  • Exam period: 10 June 2022 - 25 June 2022

Class Times and Room Numbers

28 February 2022 - 10 April 2022

  • Monday 09:00 - 09:50 – MT228, Student Union, Kelburn
  • Thursday 09:00 - 09:50 – MT228, Student Union, Kelburn
  • Friday 09:00 - 09:50 – MT228, Student Union, Kelburn
25 April 2022 - 05 June 2022

  • Monday 09:00 - 09:50 – MT228, Student Union, Kelburn
  • Thursday 09:00 - 09:50 – MT228, Student Union, Kelburn
  • Friday 09:00 - 09:50 – MT228, Student Union, Kelburn

Other Classes

Each student is required to complete a weekly lab exercise. Lab times will be announced during the first lecture, and students will sign up to a lab session using MyAllocator.


There are no required texts for this offering.

Mandatory Course Requirements

In addition to achieving an overall pass mark of at least 50%, students must:

  • Achieve at least 40% in the final exam.
  • Make a reasonable attempt at 3 / 4 of the Assignments.
  • Complete 8 / 10 of the weekly lab exercises.

If you believe that exceptional circumstances may prevent you from meeting the mandatory course requirements, contact the Course Coordinator for advice as soon as possible.


This course will be assessed through the following:

Assessment ItemDue Date or Test DateCLO(s)Percentage
Labs (10)Due WeeklyCLO: 1,2,3,410%
Assignments (4)Due Start of Weeks 4, 6, 9 and 11.CLO: 1,2,3,420%
Web AssessmentDue end of Week 12.CLO: 1,210%
Tests (2)Held Week 6 and Week 11.CLO: 1,2,320%
ExamHeld During Exam Period.CLO: 1,2,340%


For the LABS. Any lab submitted after the deadline (normally 23:59 on Fridays) will not be marked and will get 0 marks. There are no "late days" for labs.
For the ASSIGNMENTS. Any assignment submitted up to 24 hours after the deadline will be penalised by 20%, and any assignment submitted between 24 and 48 hours after the deadline will be penalised by 40%. Any assignment submitted 48 hours or more after the deadline will not be marked and will get 0 marks.
LATE DAYS POLICY (for Assignments). Each student will have three "late days" which you may choose to use for any assignment or assignments during the course. There will be no penalty applied for these late days. You do not need to apply for these, instead any late days you have left will be automatically applied to assignments that you submit late.


Individual extensions will only be granted in exceptional personal circumstances, and should be negotiated with the course coordinator before the deadline whenever possible. Documentation (eg, medical certificate) may be required.

Submission & Return

All work is submitted through the ECS submission system, accessible through the course web pages. Marks and comments will be returned through the ECS marking system, also available through the course web pages.

Marking Criteria

Assignments and labs will be marked primarily on how accurately the given problem is implemented (i.e. correctness), as measured by the number of passing tests. For assignments, marks will also be available for the quality of code produced (i.e. style).


The total workload for SWEN 221 is 150 hours. In order to maintain satisfactory progress in SWEN 221, you should plan to spend an average of 10 hours per week on this course.

Teaching Plan

See https://ecs.wgtn.ac.nz/Courses/SWEN221_2022T1/LectureSchedule

Communication of Additional Information

All online material for this course can be accessed at https://ecs.wgtn.ac.nz/Courses/SWEN221_2022T1/

Offering CRN: 18318

Points: 15
Prerequisites: COMP 103
Duration: 28 February 2022 - 26 June 2022
Starts: Trimester 1
Campus: Kelburn