Category Archives: Technology

Testing Smarter, Not Harder: What I Learned About Software Testing

by: Queenstar Kyere Gyamfi

For my second self-directed professional development blog, I read an article from freeCodeCamp titled What is Software Testing? A Beginner’s Guide. The post explains what software testing really is, why it’s essential in the development process, and breaks down the different types of testing that developers use to make sure software works as intended.

The article starts with a simple but powerful definition: testing is the process of making sure your software works the way it should. It then describes several types of testing like unit, integration, system, and acceptance testing and explains how each one focuses on different levels of a program. It also introduces core testing principles such as “testing shows the presence of defects, not their absence” and “exhaustive testing is impossible.” Those ideas really stood out to me because they show that testing isn’t about proving perfection it’s about discovering what still needs to be improved.

I chose this article because, as a computer science student and IT/helpdesk worker, I deal with troubleshooting and debugging almost daily. I’ve always seen testing as something that happens after coding, but this article completely changed that mindset. It made me realize that testing is an ongoing part of development, not a one-time task before deployment. It’s a process that ensures software is not only functional but also reliable for real users.

What I found most interesting was how the author connected testing to collaboration and communication. Writing good test cases is like writing good documentation, it helps other developers understand what the software should do. The idea of “testing early and often” also makes a lot of sense. By catching issues early in the process, developers can save time, reduce costs, and prevent bigger headaches later on.

Reading this made me reflect on my own coding habits. I’ve had moments in class where my code worked “most of the time,” but I didn’t always test for edge cases or unexpected inputs. Moving forward, I plan to write more tests for my own projects, even simple ones. Whether it’s a class assignment, a group project, or a personal program, I now see testing as a chance to build confidence in my work and improve how I think about quality.

Overall, this article helped me understand that software testing isn’t just about finding bugs it’s about building better software. It’s a mindset that values curiosity, patience, and teamwork. By applying these lessons, I’ll be better prepared not only to write code that works but to deliver software that lasts.

***The link to the article is in the first paragraph***

From the blog CS@Worcester – Circuit Star | Tech & Business Insights by Queenstar Kyere Gyamfi and used with permission of the author. All other rights reserved by the author.

Working in Agile and Scrum Teams

Source: Hapticmedia and The Scrum Guide

Agile is a methodology that allows for iterative development that is constantly being improved upon for the best product and efficiency. Those who use Agile follow the manifesto, consisting of 4 values and 12 principles of best practices. 

The values are: 

  1. Individuals and Interactions Over Processes and Tools
  2. Working Software Over Comprehensive Documentation
  3. Customer Collaboration Over Contract Negotiation
  4. Responding to Change Over Following a Plan

The first value relates to prioritizing how the team is working as a whole rather than following a strict set of protocols that may hinder productivity. The second value focuses on getting a working product to show the customer over spending too much time on documentation that does not progress the project. The third value involves the customer in the development process, allowing for constant feedback and a product the customer will love. The fourth value is similar to the first, reacting to changes the team needs to make to be more efficient and create a working product is more important than sticking to a plan created in the beginning. 

A type of the Agile methodology is called Scrum. Scrum breaks down a project into small “sprints” where the team works on a small increment of the whole project. In each team there are the Developers, a Product Owner, and a Scrum Master. The Product Owner acts as the communicator between the developers and the customer and maintains a priority list of what needs to be done. The Scrum Master oversees the developers and ensures they are being as effective as they can be. During each sprint, there are 4 main components, the planning meeting, the daily scrum, the sprint review, and the sprint retrospective. The planning meeting happens at the beginning of the sprint and is where the team decides what they will accomplish this sprint. The daily scrum is a daily meeting where everyone decides what they will do that day and what they will do better from the day before. The sprint review is a meeting with the customers/stakeholders where everything that was accomplished is presented. The sprint retrospective is a meeting between the scrum team where they discuss what went well overall and what needs to change for the next sprint. 

Agile is a very effective methodology for software development. Over 85% of developers use it and it improves delivery time and team morale. It also allows for all team members to be on the same level where everyone is important and always making valuable progress. I hope to be in a team that uses Agile because it is the most effective compared to other methods of software development, like Waterfall. I am looking forward to experiencing the Scrum process first-hand in the Software Development Capstone next semester and I have high hopes of what it will do for my long term career.

From the blog ALIDA NORDQUIST by alidanordquist and used with permission of the author. All other rights reserved by the author.

Development Environment

Development Environments in Software Process ManagementDownload

From the blog CS@Worcester – dipeshbhattaprofile by Dipesh Bhatta and used with permission of the author. All other rights reserved by the author.

Bridging Structure and Flexibility: Understanding Software Design Methodologies and Agile

Hello everyone, and welcome to my blog entry for this week!For this week’s self-directed professional development, I explored the topic of Software Design Methodologies and Agile Practices. I used several online resources, including tutorials from Atlassian Agile Coach and readings from GeeksforGeeks. Even though the focus was on understanding Agile methodologies, I found that many of the ideas connected directly to our discussions in class about the software development life cycle (SDLC) and software design principles.

Summary of the Resource

Software design methodologies provide structured approaches to building and maintaining software systems. They define how development teams plan, design, implement, test, and deliver software. Traditional methodologies like the Waterfall Model, V-Model, and Spiral Model follow a sequential or plan-driven approach — where each stage must be completed before the next begins. These models emphasize documentation, predictability, and control.

On the other hand, Agile methodologies such as Scrum, Kanban, and Extreme Programming (XP) prioritize adaptability, collaboration, and continuous feedback. Agile breaks development into small iterations or “sprints,” allowing teams to quickly adjust to changes in requirements or user needs. Instead of rigidly following a plan, Agile embraces flexibility — delivering functional software early and improving it continuously.

The Agile Manifesto summarizes this philosophy in four values:

  • Individuals and interactions over processes and tools
  • Working software over comprehensive documentation
  • Customer collaboration over contract negotiation
  • Responding to change over following a plan

Why I Selected This Resource

I chose to focus on Agile methodologies because I wanted to understand how modern development teams manage complexity in real-world projects. We often hear about Agile in professional settings, but I wanted to explore why it has become so widely adopted. After learning about structured models like Waterfall, I was curious to see how Agile differs in terms of flexibility, teamwork, and iterative design.

This topic also connects closely to our class discussions on object-oriented design and project management, where adaptability and maintainability are key. Understanding these methodologies helps bridge the gap between theoretical design principles and practical implementation in team environments.

Personal Reflections: What I Learned and Connections to Class

Exploring Agile helped me see how methodology shapes not only the process but also the culture of software development. Here are a few takeaways that stood out to me:

  • Iteration mirrors refinement in design. Just like UML diagrams evolve as designs improve, Agile projects evolve through sprint cycles that incorporate feedback.
  • Communication is central. In Agile, daily stand-ups and retrospectives ensure the entire team stays aligned, similar to how collaboration in object-oriented design ensures consistent architecture.
  • Adaptability is a strength, not a weakness. While traditional models aim for stability, Agile embraces change — which is essential when building modern, user-driven applications.

In class, we often focus on designing systems that can evolve. Agile reinforces that same mindset at the project management level software design should anticipate growth, not resist it.

Application to Future Practice

Moving forward, I plan to apply Agile thinking to my future software projects, especially in group work or larger systems. Instead of trying to perfect a design from the start, I’ll focus on building incrementally, testing continuously, and welcoming feedback early in the process.

For example, in future programming projects, I could organize development into short milestones, use version control branches to represent sprints, and hold mini “retrospectives” after each stage. These habits will not only improve collaboration but also help me develop adaptable, high-quality code.

Citation / Link

Atlassian Agile Coach. “What is Agile?” Atlassian. Accessed October 2025. https://www.atlassian.com/agile
GeeksforGeeks. “Software Development Life Cycle (SDLC) and its Models.” 2025. https://www.geeksforgeeks.org

This exploration helped me connect the structured approaches of traditional methodologies with the flexibility and innovation of Agile. It reinforced that software design isn’t just about code — it’s about creating systems and processes that can evolve as technology and user needs change.

From the blog Rick’s Software Journal by RickDjouwe1 and used with permission of the author. All other rights reserved by the author.

From UML to Design Patterns: Refactoring the Duck Simulator

Hello everyone, welcome back to my blog! In my previous post, I explored object-oriented design basics and the importance of UML diagrams for understanding class relationships. This week, I applied that knowledge to a practical assignment by refactoring the Duck Simulator project using several design patterns, and I want to share what I learned from the process.

Introduction

UML diagrams provide a visual blueprint for software systems, helping developers understand relationships, dependencies, and responsibilities of different classes. While useful on their own, combining UML with design patterns allows us to translate those visual models into flexible, reusable, and maintainable code. In the Duck Simulator project, I used UML to identify repetitive behavior and then applied Strategy, Singleton, and Factory patterns to improve the system’s design.

Using UML to Identify Problems

Originally, the Duck Simulator consisted of an abstract Duck class and subclasses like MallardDuck, RedHeadDuck, RubberDuck, and DecoyDuck. Each duck implemented its own fly and quack methods. My UML class diagram made it clear that this design was repetitive: multiple subclasses had similar or identical behaviors. This repetition violates the DRY (Don’t Repeat Yourself) principle and makes the system harder to maintain or extend. The diagrams highlighted the exact areas where behavior abstraction could be applied, providing a clear roadmap for refactoring.

Applying the Strategy Pattern

The first refactor I implemented was the Strategy Pattern, which separates the fly and quack behaviors into FlyBehavior and QuackBehavior interfaces. Each duck is assigned a behavior object rather than hard-coding methods. Using UML, I could visualize how Duck classes now depend on behavior interfaces, not concrete implementations. For example, RubberDuck now uses the Squeak behavior, and DecoyDuck uses MuteQuack. This change made it easy to swap behaviors dynamically and reduced duplicated code across subclasses.

Using the Singleton Pattern

Next, I noticed that all ducks shared identical behaviors like FlyWithWings and Quack. To avoid creating multiple unnecessary instances, I applied the Singleton Pattern. UML helped illustrate that each behavior class has a static instance and a getInstance() method. This ensured that ducks reused the same behavior object, saving memory and improving consistency.

Implementing the Simple Factory Pattern

Finally, I created a DuckFactory to centralize the creation of ducks with their associated behaviors. UML shows a clear dependency from the simulator to the factory, encapsulating construction logic and removing manual behavior assignments in the simulator. This simplified code maintenance and improved readability, while maintaining all Strategy and Singleton benefits.

Reflection

This assignment reinforced how UML and design patterns complement each other. The diagrams helped me see problems in the design, and patterns provided proven solutions. After completing the refactor, the Duck Simulator is now modular, maintainable, and extensible. I can confidently add new duck types or behaviors without touching existing code. Personally, I learned that UML isn’t just documentation, it’s a tool that guides better design and code structure.

Resources

While exploring this assignment, I also reviewed a great resource that breaks down the concepts from Head First Design Patterns in a clear and structured way. You can find it here on GitHub. It helped me connect UML representations with real-world code implementations, especially when applying the Strategy Pattern in my Duck Simulator project.

From the blog CS@Worcester – Rick’s Software Journal by RickDjouwe1 and used with permission of the author. All other rights reserved by the author.

Blog post 1

The first quarter of the semester has come to a close. In CM-348 we have gone through a number of Git and GitHub features. Learning about pushing and pulling data, as well as doing some data cleaning was a great learning opportunity. As I finish my last year of school, I am trying to look at these processes in an analytical sense because that’s what I want to do moving forward.

In my free time over the past few weeks I have watched a lot of Alex The Analyst videos on YouTube. He has provided free knowledge on what it takes to become a data analyst. From interviews, to Git, to data visualization he provides a lot on his channel for people who want to learn. This week I watched his “2 Hour Data Analyst Masterclass” video. In this video, Alex breaks down what a data analyst interview process looks like from start to finish. He discusses what kinds of technical questions to expect, the importance of storytelling with data, and how to demonstrate value through projects or case studies. He also covers common interview mistakes, like not being able to explain one’s own projects clearly or failing to connect technical skills to business outcomes. This video was very insightful, he showed his viewers what skills you really need to get into the field, and it personally showed me some things I might need to work on.

I chose this resource because it’s directly relevant to where I am in my career path, as well as in my learning. I’m starting to build my portfolio and think seriously about interviews and job readiness. Alex’s advice helped me see how important communication is in data roles, it is more than being technically skilled, also being able to explain how your work impacts decisions. This connects to CM-348 because version control, documentation, and communication are key parts of the Git workflow. I am doing a bit of projecting here, but I look forward to watching more of his videos.

From the blog CS@Worcester – Tristan CS by Tristan Coomey and used with permission of the author. All other rights reserved by the author.

Reflection on “Coding Standards and Guidelines”

by: Queenstar Kyere Gyamfi

The GeeksforGeeks article “Coding Standards and Guidelines” highlights the importance of writing code that is clean and consistent. It also underlines the need for code that is easy to understand. It explains that coding standards are a set of rules and conventions that help developers maintain clarity and quality across a project. These standards cover areas such as naming conventions, indentation, code structure, comments, and documentation. The article emphasizes that following standards is not about limiting creativity. It is about making sure that everyone working on a project can easily read and maintain the code. It also points out that coding guidelines help prevent errors. They make debugging easier. They ensure that software projects remain manageable as they grow.

I chose this resource because I’ve noticed how quickly group projects can become messy. Each person having a different coding style contributes to this messiness. I’ve always cared about writing code that works. I’ve started realizing that how the code looks and reads is just as important. This is especially true in team environments. This article stood out to me because it clearly explained the purpose behind coding standards.

One key lesson I learned from this article is that consistency builds trust among developers. When everyone follows the same structure, it becomes easier to understand, review, and modify code written by others. The article also reinforced the idea that good code should be self-explanatory. For example, meaningful variable names like totalPrice or userCount communicate intent better than short, unclear ones like x or val. I also learned how proper indentation and spacing make code more readable and reduce the risk of logic errors that come from misaligned statements or missing braces.

Reading this resource made me reflect on my own coding habits. Sometimes, when I’m rushing to finish an assignment, I skip comments or mix naming styles without thinking about how confusing it might be later. Now, I see that writing clean code is an investment as it saves time when debugging and helps others understand what I meant. I also want to use tools like linters and formatters to automatically enforce standards in my projects.

Overall, this article helped me understand that coding standards are not about perfection but they are about communication. Clean, organized code reflects professionalism and respect for the next person who will read it. It reminded me that in software process management, technical skills and teamwork go hand in hand. Writing code that others can easily follow is one of the best ways to contribute to a project’s long-term success.

LINK TO RESOURCE:

https://www.geeksforgeeks.org/software-engineering/coding-standards-and-guidelines/

From the blog CS@Worcester – Circuit Star | Tech & Business Insights by Queenstar Kyere Gyamfi and used with permission of the author. All other rights reserved by the author.

From Inheritance to Strategy: Lessons from the Duck Simulator

One of the primary obstacles in software design is ensuring that code remains easy to maintain and extend. Initially, inheritance seems like the clear answerplacing shared code in a superclass and allowing subclasses to override as necessary. However, as demonstrated in the classic Duck Simulator example, relying solely on inheritance can result in fragile designs.

From Inheritance to Strategy

In the first version of the Duck Simulator, all ducks derived from a base Duck class. This approach worked until we introduced unique ducks like RubberDuck (which squeaks instead of quacking and cannot fly) and DecoyDuck (which does neither). Suddenly, we found ourselves needing to override or disable inherited methods, leading to duplication and design issues such as viscosity and fragility. Transitioning to interfaces helped to declutter the design, but it also required us to replicate code across similar ducks. The true breakthrough arrived with the Strategy Pattern,

We extracted behaviors like flying and quacking into separate classes (FlyWithWings, FlyNoWay, Quack, Squeak, MuteQuack). Now, ducks possess behaviors rather than inheriting them. These behaviors can be altered at runtime, and new ones can be introduced without changing existing code. This transition underscored the principle of favoring composition over inheritance and illustrated the Open-Closed Principle: code is open for extension but closed for modification.

Design Principles in Action

The exercise reinforced several essential principles: High Cohesion: Each behavior class excels at a single task. Low Coupling: Ducks are indifferent to how they fly or quack, only that they can delegate to a behavior. Encapsulate What Varies: Changes in behavior are contained, not dispersed across subclasses. Collectively, these factors enhance the design’s flexibility and maintainability.

UML: Clearly Communicating Design

We also engaged in the practice of illustrating designs through UML diagrams. In contrast to code, UML offers a higher-level representation that clarifies relationships: Associations (for instance, a Student possessing a schedule of Course objects). Multiplicity (for example, a student may enroll in 0–6 courses). Inheritance and interfaces (such as Faculty extending Employee and implementing HasCourseSchedule). Tools like PlantUML enable us to create these diagrams in Markdown, facilitating easy adjustments and sharing.

Key Takeaways

Relying solely on inheritance frequently results in fragile designs. The Strategy Pattern addresses this issue by encapsulating behavior and employing composition. Guiding principles such as High Cohesion, Low Coupling, and Open-Closed promote cleaner designs. UML diagrams provide us with a common language to convey and analyze code. What began as a straightforward duck simulator evolved into an insightful lesson on the significance of design patterns. By embracing the Strategy Pattern and utilizing UML for design modeling, we discovered how to construct systems that are not only functional but also resilient, adaptable, and easy to maintain.

From the blog CS@Worcester – MY_BLOG_ by Serah Matovu and used with permission of the author. All other rights reserved by the author.

Blog 1 Version Control

 Version Control in Software Process Management 

I am Dipesh Bhatta, and I am writing this blog entry for CS-348 Software Process Management for Blog Quarter 1. I chose to write about version control and how it is applied in software process management. My chosen resource is an article entitled “What is Version Control?” by Atlassian’s Git tutorials ( https://www.atlassian.com/git/tutorials/what-is-version-control ). This passage explains what version control is, why software projects require it, and how developers use it in practice. 

The passage defines version control as a process that records file changes over time. It allows several people to work on the same project simultaneously without losing work or overwriting each other’s work. Another important advantage is that version control has a complete history of the project, and developers can go back to an earlier version or reverse mistakes when necessary. The article also explains how the older systems, like the centralized ones such as Subversion (SVN), differ from newer distributed systems such as Git. Git has risen to be the most widely used version control system because it offers each developer a full copy of the project; thus, it is reliable and flexible. Apart from this, the article captures the workflows like branching, merging, and pull requests, which make collaboration safer and more structured. 

I used this resource because version control is associated with managing the software process, the subject of CS-348. The course is all about managing software development in an organized fashion, and version control is one of the most important tools used to facilitate this process. I also wanted to understand the reason why version control is crucial and not just how to use it, since understanding its purpose makes me aware of its application in professional software development. 

This article made me realize version control is not just saving code—it is a process of keeping collaboration and advancement. Without it, projects quickly become unmanageable, and you can’t even know who did what to the code. The explanation of Git branches was most helpful because it mirrors what we do in CS-348. Branches allow developers to experiment with new functionality without affecting the original codebase, and this is a clear demonstration of process management in action. 

The article also got me to think about my own working habits. Writing good commitment messages, responsible use of branches, and adherence to a process-based workflow are all habits that enhance collaboration and project quality. These habits will benefit me in group projects from now on and later in professional work. 

In short, version control is an essential part of software process management. It facilitates collaboration, organization, and accountability—all major themes in CS-348. By performing these routines throughout Blog Quarter 1, I am creating technical skills as well as professional routines that will benefit me throughout my career. 

From the blog CS@Worcester – dipeshbhattaprofile by Dipesh Bhatta and used with permission of the author. All other rights reserved by the author.

Welcome to My Journey in CS 343: Software Construction, Design & Architecture

Hello everyone, my name is Rick Djouwe, and this semester I am beginning CS 343: Software Construction, Design & Architecture. I am truly excited for this class because it represents the next step in strengthening my ability to think beyond coding and focus on building well-structured, scalable, and maintainable software systems.

What This Course is About

CS 343 covers a wide range of essential topics in modern software development, including:

  • Design principles such as abstraction, encapsulation, inheritance, and polymorphism.
  • Best practices like SOLID, DRY (“Don’t Repeat Yourself”), and YAGNI (“You Ain’t Gonna Need It”).
  • Design patterns that provide reusable solutions to common problems.
  • Software architectures and frameworks, including REST API design.
  • Refactoring, code smells, and concurrency, which improve software quality and longevity.
  • Modeling and documentation tools like UML, which ensure clear communication of design decisions.

In short, this course is not just about writing code, it’s about learning to think like a software engineer who can approach problems critically, design solutions thoughtfully, and work effectively with others.

Skills and Outcomes

Through CS 343, I will gain valuable experience in:

  • Collaborating with stakeholders to design, test, and deliver software systems.
  • Applying professional judgment and staying current with evolving tools and practices.
  • Organizing projects using proven methodologies and team processes.
  • Communicating complex technical concepts clearly, both in writing and orally.

These outcomes connect directly to the broader goals of my Computer Science major: analyzing problems, building solutions, and developing the professional skills needed to succeed in the field.

Why This Matters to Me

As someone pursuing a career as a software engineer specializing in artificial intelligence, this course will help me strengthen the foundations of software design and architecture that are critical in building intelligent, scalable systems. Beyond my academic goals, I also see a strong connection to my current role as an Automation Developer at The Hanover Insurance Group, where I contribute to projects that rely on thoughtful design, testing, and collaboration. The principles and practices I learn here will make me more effective in my work today while preparing me for even greater responsibilities in the future.

I am eager to reflect on my progress throughout the semester, connect this material with experiences across my other courses, and apply these lessons directly to both my professional role and long-term career.

For me, CS 343 is more than a class, it’s a bridge between where I am now and the kind of innovative, responsible, and skilled software engineer I strive to become. I am also excited to meet everyone in this course and learn from each other as we move forward together. Feel free to reach out if you’d like to connect, collaborate, or study together this semester!

From the blog Rick’s Software Journal by RickDjouwe1 and used with permission of the author. All other rights reserved by the author.