In today’s blog I’m gonna talk about UML diagram. This week in the past we learn how to draw email diagram and how it helps in software developing and designing. We also learned how programmers use this UML diagram to write code in class object and much more. This is directly related to the course materials in and computer science major this block will help the readers how to draw your UML diagrams and then write a code based on that.

i’m gonna start with what is your UML diagrams. UML, which stands for Unified Modeling Language, is a way to visually represent the architecture, design, and implementation of complex software systems. This language helps programmers to visualize the software and helps them developing code.I’m gonna talk about types of your mail diagram there are five component of uml diagram. Class, object, inheritance, Abstraction,and polymorphism. Below show definition of those component.

1. Class –A class in UML diagrams tells the basic idea of the structure and functions of an object used in class.
2. Objects –Objects help us break down large structures and allow us to modulate our behavior.
3. Inheritance –Inheritance is a process by which child/Subclasses inherit the characteristics of their parent/Superclasses.
4. Abstraction –It is the process by which implementation details are hidden from the user end.
5. Polymorphism –It is the method by which functions or entities are to show themselves in more than one foam.

   People chose this because UML Because it helps strategic value of software increases for many companies, the industry looks for techniques to automate the production of software and to improve quality and reduce cost and time-to-market. These techniques include component technology, visual programming, and pattern. The Unified Modeling Language (UML) was designed to respond to these needs. this tool is really easy to use when you understand everything. This diagram helps Support higher-level development concepts such as collaborations, frameworks, patterns and components. And Integrate best practices.

   There are many ways to write or draw UML diagram. You can Draw it by pen or pencil or online tool like visual-paradigm that Han help developer to draw class and object UML diagram FOR FREE.

   we all know that your UML diagram is REALLY difficult to write or draw. I am going to explain what each symbol and sign mean in UML Class diagram. Link below show how UML diagram can be drawn. There are things in there you can look at like UML Class Notation, Class Visibility, class attribution, Class operation, Parameter Directionality, Relationships between classes and much more…

SOURCE: https://www.techtravelhub.com/what-is-uml
https://www.visual-paradigm.com/guide/uml-unified-modeling-language/what-is-uml/

free UML diagram: https://online.visual-paradigm.com/diagrams/solutions/free-class-diagram-tool/

From the blog CS@Worcester – </electrons> by 3electrones and used with permission of the author. All other rights reserved by the author.

For this week “Apprenticeship Pattern” I have chosen Reading List. It is a pattern about keeping up a running list or more precisely a priority queue, as the author describes it, of books that are worth reading for amassing more knowledge about a given subject. The queue will change or be reorganized many times over the course of it, but it is worth having. Another useful advice in the pattern is to ask your mentors or people more knowledgeable bout a subject about which books they recommend reading.

What I like about this pattern is simply something that I have already started doing, it is interesting to me to find out that it is not only me who had this idea. I think this will be a very useful tool in anybody’s arsenal in their professional career. What I have done is essentially described in the pattern itself. I have talked to some of my colleagues at work as well as my bosses and figured out what books they recommend, after that I have done some research and based on other reviews of the mentioned books I have made my own list.

Not all the books in my opinion need to be about your work or career, if they are helpful in some way then they are worth reading. Any knowledge is good, the best knowledge of course is the one that helps us grow as a person.

One useful thing that I have learned from this pattern is to put my past books on my list and keep them there even after I have read them. This is to help me and other to reflect on them later and to better remember the contents and lessons acquired from the book. The pattern also states that better understanding of the subject at hand will help people refine and organize the list better. I agree with that and like the author states mentors are always a good source of said understanding and any good mentor will always steer you in the right direction. I’m feeling lucky because I have been able to find such a person. Currently due to my student status my reading has stalled to a degree, but I do plan to get back to it as soon as possible.

From the blog #CS@Worcester – Pawel’s CS Experience by Pawel Stypulkowski and used with permission of the author. All other rights reserved by the author.

For this week’s blog post, I decided to write about The White Belt.  This section is in Chapter 2 which is called Emptying The Cup, and if I remember the introduction for Chapter 2 correctly, this chapter 100% belongs in this section. Like all sections in this book, it is split up into 5 sections, context, problem, solution, action, and see also. The context is a short sentence that basically explains the reader is now confident in his abilities in a certain language, and people rely on them for help. I was actually shocked to read this because typically the white belt symbolizes the beginning, and this book’s description of a white belt is knowing a language and helping people. That’s shocking to me because that just means I have no belt because I feel like I’m in no position to be helping people with the skills I have now.

The next section is the problem. This section was also very short, but it should be because it is only discussing the issue. The issue for this section is that it is difficult to learn new things, and that your “personal development may have stalled” (Oshineye, Hoover). While this isn’t an issue for me yet because I am still learning my first language, this could very much be an issue in the future for me as I also struggle with learning new things.

The solution section urges the reader to start to learn new things by unlearning the things he already knows. They use real life examples as well as some code examples to get their point across. I particularly enjoyed the code section because I liked how they showed the same process being done with two “radically different” (Oshineye, Hoover). languages. They did this to show that because you have a solution in one language, you should still learn a new language to broaden your horizons.

This section was a really easy read for me. The part where they talked about how the white belt had to learn the way while the black belt knows the way really hit me because that was how my internship was. I had to watch and learn everyday before I could even do anything, and it was actually nice to learn along the way because I realized there was so much more that I had to learn before starting my real job.

From the blog CS@Worcester – My Life in Comp Sci by Tyler Rego and used with permission of the author. All other rights reserved by the author.

From the blog #Khoa'sCSBlog by and used with permission of the author. All other rights reserved by the author.

Further reading into chapter 2 I find that I relate to many of the patterns in this chapter, However, in my reading tonight I felt a specific interest in UnleashYour Enthusiasm. Unleashing Your Enthusiasm is about taking your passion for the work you do and exercising that passion. Think of it like starting at a new gym. You may not know what to do or the correct ways to do things, you may feel weak, confused, and embarrassed. Even with all of these negative feelings you know that you are excited to learn and get stronger. You may need to ask trainers for help and exercise your want for learning despite the embarrassment. This pattern is primarily about understanding that your passion used correctly is itself a valuable attribute to contribute to a team or teacher.

I find that this pattern goes hand in hand with Exposing Your Ignorance and that are one in the same. In order to unleash your enthusiasm you must be willing to expose your ignorance. If you are new to a team or project you are undoubtedly going to have to learn. You have to know that other more senior members will know more than you and will have to take the time to teach you, which for them may seem counterproductive. Being alright with your ignorance is the first step toward unleashing your enthusiasm. UnleashYour Enthusiasm is more about seeing the value in your ignorance. With this drive for knowledge it can help rekindle the flames of other more senior members who have plateaued and have their fire of passion die down to a smolder.

I find I experience the fear of exposing my ignorance quite often. At this point in my education I am always learning in everything I do. It sounds silly because it’s so obvious, but everything I have learned was once something I did not know. This means I had to overcome some fear and pursue that knowledge. Working with teams of my peers there is often a wide range of knowledge based on experience and backgrounds. It is scary to put myself out there and explain that I may not know something that they are all talking about it, but I have had the courage to do so. Many times I have done this and then had a pleasant conversation with my peers about having the drive for knowledge. It doesn’t pay to be afraid of taking the chance, that chance is knowledge and it gives others the opportunity to share something with you. I find that this unleashing of enthusiasm sparks a great pep talk for any team.

From the blog cs@worcester – Zac's Blog by zloureiro and used with permission of the author. All other rights reserved by the author.

Last week, I gave an overview of my planned independent study project. This week, I’ll give a bit more detail on what I’ve done.

I have a habit of preparing for classes before they start. I buy the text books, get an overview of the material, and prepare to apply learning techniques throughout the semester. This helps me identify problems before the semester starts and address them in class as I go. Likewise with this project, I had hoped to get as much as I could done with machine learning before this semester started to hit the ground running with the software portion. Naturally, my ignorance led me to assume the problem was easier than it actually is. After a great conversation with a communications professor, I realized the problems I was trying to solve had to be broken down.

Counter-intuitively, the broken down problem is more difficult. To recap, my project involves machine learning and audio signal processing. Although great leaps have been made in this field and many problems have been solved, they mostly use clever tricks to achieve the results they get. Take speech recognition for example: your text-to-speech software transcribes nearly 100% correctly. Machine learning models can use huge datasets of audio, as well as commonly-spoken phrases to decide which words you’re most likely to say. The result is that mumbling, stuttering, or ambient noise is a bit more forgivable. On the contrary, transcribing each and every syllable is not nearly as easy, and in fact it’s a problem that has yet to be solved. That’s a shame, considering I was hoping to transcribe an audio sample into phones as part of my process and I somehow doubt I can do it without first getting a PhD.

This realization has led me to take a quick course on machine learning problem framing. It teaches the process of developing an hypothesis and developing a model to prove it, as well as resisting the temptation to shoehorn a problem into machine learning when a heuristic solution is as good or better. I did manage to find examples of using machine learning to solve some of the problems I wanted to (dating back 20+ years, even), but unfortunately they were each limited in scope and would be difficult to use to make a cohesive app. My goal isn’t a Frankenstein project.

In an effort to dig deeper, I’ve also done an introduction to Pandas tutorial, and started on a Tensorflow tutorial. These are surface-level in and of themselves, but help in understanding the higher-level frameworks. My hope is that understanding the basics will allow me to create a model that has an exciting application. In the meantime, I can implement the prerequisite features in software: audio recording and signal processing.

I’m going to dive into more specific problems as the semester goes on and I get more comfortable with the topics. I’ve already come up with a list of ideas and find myself wanting to write posts on small things like Android project flavors and build configuration. Posting thoughts and lessons in a public place has been great for accountability, and my goal is to know these technologies inside and out 4 months from now.

From the blog CS@Worcester – Inquiries and Queries by James Young and used with permission of the author. All other rights reserved by the author.

This apprenticeship pattern concerns something that most people are afraid to do. Nobody wants to look ignorant in their profession, because we are expected to be competent and knowledgeable and that is what we are paid for.

The main idea is simple: don’t pretend to know something you don’t. This leads to headaches in many ways, but most importantly it will make it more difficult to learn what you need to learn. In software there is an endless supply of new technology to learn and throughout a software career, there will be countless projects that use something you don’t understand. Admitting this fact and asking others for help is the quickest way to learn it. At the same time, you will build trust with your team and show that you know how to learn.

We are trained to look competent from a young age. We need good grades to get into better classes, a better college, the best job possible. Getting a poor grade reflects lack of preparation rather than exposing ignorance, so it’s natural to think that we will be seen as unprepared if we show ignorance in our work. If this fear is realized, it is likely a problem with the culture.

The most important idea in this pattern is showing others that learning is part of the software process. Speaking from experience, I’ve never judged a coworker or classmate for something they didn’t know. Each of us has our expertise, and if I don’t have time to teach something, I can at least be there for support if they need it. What would become an issue, is when someone says they can get something done and only much later admit that they can’t, when it’s too late to get them up to speed.

Likewise, people have always been willing to help in the times I’ve admitted not knowing. More often than not, the response has been mutual frustration. I’ve saved myself a lot of worry by admitting confusion and hearing from tenured employees that “it’s just confusing, I don’t really understand it either”. The result is a collaborative effort where both people come out knowing more, and having a better rapport in the future.

This pattern is an excellent reminder that we’ll never know it all, and that pretending to is not a long-term solution. The suggested action is to write down five things that you don’t understand about your work, and showing it where others can see it. This seems like a good tactic, and I plan to do this on a whiteboard at work. Coworkers who know better than I will hopefully guide me in the right direction.

From the blog CS@Worcester – Inquiries and Queries by James Young and used with permission of the author. All other rights reserved by the author.