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-# flower-app
+![Banner](docs/banner.jpg)
 
-In order to run application:
+> *Create, run, analyze and export your flowcharts.*
 
-``` Shell
-$ npm i
-$ npm run build
-$ serve -s build
-```
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+[Click here to visit application!](http://web.itu.edu.tr/~ozkanbe19/flower-app/)
+
+
+# Introduction
+
+![HelloWorld](docs/flow-hello-world.jpg)
+
+This project aims to reduce the understanding time and debugging process of procedural algorithms by providing following features:
+
+ - **Designing:** Realize your algorithm by adding statements, decisions, loops and subroutines into your flowchart.
+ - **Testing:** With the help of the built-in debugger, you can test your algorithm with given inputs! You can inspect the changes in variables, step-by-step.
+ - **Analysis:** Use the metrics to optimize your algorithm such as [cyclomatic complexity](https://en.wikipedia.org/wiki/Cyclomatic_complexity), how many steps required and how many blocks it has.
+ - **Exporting:** After finishing your design, you can export them into pseudo-code and PNG images! Generated pseudo-code and image can be used for documentation.
+ - **Saving and Loading:** You can download your work and share it. This way, you can save your progress. Moreover, you can *use these project files directly in your flowcharts as subroutines!*
+ - **Completely Client-side:** Just like a native application but on a browser. No server-side logic.
+ - **PWA:** Use as desktop or mobile application. Click to "Install FlowerApp" when you visit the site and use FlowerApp anywhere, anytime.
+
+
+## Why use FlowerApp?
+
+1. No installation required.
+2. Easy to learn. Just select the blocks, write very simple statements and connect them.
+3. Helps to understand procedural algorithms.
+4. Ability to test and export your algorithms. You can export them as pseudo-code out of the box.
+5. It can be run on all modern browsers.
+
+Even though you can write anything you want into the blocks (an abstract flowchart), if you want to run your flowchart, you have to follow *FlowerApp syntax* which is very similar to JavaScript. It is so similar that it may be a great start to learning JavaScript!
+
+
+#  How to use?
+
+> [In-App Help Page](https://web.itu.edu.tr/~ozkanbe19/flower-app/how-to.html)
+
+
+# Screenshots
+
+Below program shows the designing and testing the algorithm for "prime number checker".
+
+![is prime example](docs/example.gif)
+
+Here is the *generated* pseudo-code of this program by FlowerApp:
+
+![pseudo-code export panel](docs/ss-export-pseudocode.jpg)
+
+Analysis of the algorithm for the input `37` as in the GIF:
+
+![analysis](docs/ss-analyze.jpg)
+
+------
+
+# Background
+
+In a case study [^1] about teaching programming to students, 40% of the students used pseudocode to understand the programming, 40% of them used a flowchart and the remaining 20% used a real language. Moreover, all of the students (100%) wanted to test and see the results of their programs to see what their program does or should do.
+
+This work aims to make it easy to learn for at least 80% of
+the students new to programming.
+
+From the user's perspective, FlowerApp has an easy learning curve due to its simple instruction set and realizing the algorithms they wrote.
+
+The developers can easily implement new features because of the abstractions and design patterns used during development.
+
+
+## Similar applications
+
+
+### MIT Scratch
+
+Scratch is very similar in terms of placing blocks to create a program. It has also web support and high quality visuals. But, it is generally used for interactive animations. Great tool but not suitable for higher-level educational purposes.
+
+> Scratch is a high-level block-based visual programming language and website aimed primarily at children as an educational tool for programming, with a target audience of ages 8 to 16.
+>
+> -- Wikipedia
+
+
+### BlueJ
+
+A great tool to learn object-oriented programming and Java. It uses UML-like class diagrams as building blocks and provides a simple interface. But, it is mainly for object-oriented programming and you need to install the IDE, meaning no web support.
+
+> BlueJ is an integrated development environment for the Java programming language, developed mainly for educational purposes, but also suitable for small-scale software development. It runs with the help of Java Development Kit.
+>
+> -- Wikipedia
+
+
+## References
+
+[^1]:  M. Hu, “A case study in teaching adult students computer programming,” in Proceedings of the 16th Annual NACCQ, vol. 287. Citeseer, 2003. 
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