Sql billing system design erd jobs
Experience: 1. PHP and related such as CodeIgniter, Laravel, etc 2. JavaScript and other front end technologies 3. Mobile App either Native or Cross Platform a plus 4. Database such as PostgreSQL, My SQL, etc. Work Requirements: 1. One Dedicated Programmer working on project 2. Agreed upon work times 3. Hourly Pay 40 hours (or more) per week based on time worked 4. Live Screen Sharing in addition to time tracking app 5. When clocked in on time tracking app, Dedicated Work Time i.e. no other projects, personal activities, etc. In your response: 1. Confirm agree to above work requirements 2. Resume, Skill Listing, Example work 3. What days and times can you work ? 4. How many hours per week would you like to work ? 5. When are you available to start ?
...seasoned software engineer with specialization in Artificial Intelligence, Machine Learning, MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and comprehensive Microsoft technologies. Preference will be given to candidates in the USA time zone. Key Details: - Main Objective: The main goal of this project is to develop a new software application. - Platforms: The application will be developed for Web, iOS and Android. Ideal Skills & Experience: - Proficient in Artificial Intelligence and Machine Learning with a proven track record in similar projects. - Expertise in MS Copilot, Cloud Computing (Azure), MS Power Platform, SQL Server, iOS, Android, and Microsoft technologies. - Prior experience in developing cross-platform applications ...
50 Usd / Update form Exportation New Customer and dialog update due date 125 Usd / printer for development propose 300 USD / integeration Woosim Printer SDK Into Electric Bill System
I'm seeking a seasoned developer to create an AI system that can produce optimised schedules for my business. The primary objective of this system is to enhance operational efficiency. Key Features: - Machine Learning: The system should be based on machine learning principles. - job swap Handling: A crucial feature is the system's ability to manage and accommodate job swaps. Staff should be able to drop jobs on a schedule while maintaining the overall operational efficiency. - Optimization: An essential goal of the system is to optimize schedules, ensuring that they are efficient and well-organized for the business's needs. Ideal candidates for this project should have a strong background in AI and machine learning, specifically in the context...
I'm looking for a Figma design expert to create a design system prototype that will streamline our design process. The main aim of this project is to: - Enhance Design Efficiency: The design system should enable our designers to work more efficiently, by providing a set of reusable components and guidelines that they can easily implement. - Improve Consistency: The prototype needs to include guidelines on color usage and typography, ensuring a consistent look and feel across all our design projects. - Enhance Collaboration: While the primary users will be designers, it's also important that the system is accessible and understandable for other team members, allowing for smooth collaboration. Ideal skills and experie...
I’m in need of a skilled Laravel developer to bring some specific enhancements to my existing law firm system, which already includes advanced features. The tasks will primarily involve the addition of case management, document management, and time tracking functionalities. Although the request for adding a client portal, task management, and billing and invoicing features was skipped, these may be considered for future developments. Ideal Skills and Experience: - Laravel development expertise - Previous experience with legal/ law firm applications - Case and document management systems - Time tracking systems This project offers an opportunity to apply and grow your Laravel development skills while creating meaningful impact on a law firm’s daily operations ...
I'm looking for a professional with a deep understanding of SQL injection to help me identify vulnerabilities in a MySQL database. If you're experienced in this area, I'd be glad to work with you. Key Expectations: - Identify vulnerabilities: Your primary task will be to thoroughly test the database for potential vulnerabilities, considering various injection techniques. - No access: Since I don't have any access to this database, I'm looking for someone who can perform this task remotely. You'll be expected to provide a detailed report on the vulnerabilities identified, so I can address them with my database administrator. - Change database values: Additionally, I'd like you to demonstrate the ability to change database values, as a proof of con...
I'm looking for a skilled software developer to create a comprehensive Schools Management System for IOS, Android, and the Web. The system will streamline school administrative processes, improving efficiency and productivity. Key Features: 1. Attendance Tracking: Provide a quick and efficient way to monitor and record student attendance. 2. Gradebook Management: Capable of managing and updating student grades. 3. Parent-Teacher Communication: A communication platform for parents and teachers. 4. Staff, Activities and Approval Management: Tools for managing school staff, activities, and approval processes. 5. Registration System: An efficient system for student registration. UI Design: The user interface should be colorful and interactive, aiming ...
I'm in need of a comprehensive research paper that delves deeply into the realm of technology. The paper should be an in-depth analysis, ideally with the inclusion of case studies to bolster the points being made. A paper contains: Absract-Introduction-Physical problems (goemetry+equations+boundary conditions)-Methedology (experimental or numerical)-Results and discussion-conclusion-references. They are the differents sections of each research paper. Key Points: - The paper should explore various facets of technology, including its impact on society, different industries, and potential future trends. - It should be well-researched and offer a thoughtful, critical perspective. - The use of statistical analysis software is crucial - so experience with such tools is a major plus. Id...
I'm in urgent need of a web-based task management system for my small business. It should be built with PHP and must have the ability to interface with client information in QuickBooks Online. Key Features: - **Task Assignment and Tracking**: This is the core functionality that I require. The system should allow for the creation of tasks, assignment to team members, and tracking of progress. Progress updates should be emailed to the client as the status changes - **Notifications and Reminders**: I need the system to send out notifications and reminders to the team members about their tasks and deadlines. This is crucial for keeping the workflow smooth and on track. Ideal Freelancer: - Proficient in PHP and web-based application development. - Prior experienc...
I am seeking to develop a multi-featured ERP system. The ideal candidate will have a strong command of Express, MySQL, , and TypeScript, and a solid understanding of the requirements of an ERP system. Main Features: - Inventory Management: This will need to include stock tracking and control, order fulfillment and shipping, and product categorization and management. - Sales and Order Management: This will need to incorporate vital functions for sales management, customer management, and suppliers management. - Financial Management: Comprehensive financial management capabilities including accounting, payroll management, and application subscriptions management. Additional Features: - Multi-company support: I require a multi-tenant system to accommodate multiple compa...
...developer or team, capable of creating a multifunctional AI system for a new solar energy business venture. This AI system should offer the following functionalities: - Predictive analytics: The software must be able to predict patterns based on collected data. - Energy consumption analysis: Extract valuable insights from detailed energy usage. - Demand forecasting: Efficiently project future requirements for energy supply, optimizing resource allocation. The system should be compatible with a range of technology platforms including: - Desktop computers: For business-grade, in-office usage. - Mobile devices: To provide on-the-go access and monitoring. - Web browsers: To ensure cloud-based, anywhere access. Finally, the AI system needs to have ...
...interactive online learning management system. The platform is intended to be used as an online home schooling platform for delivering GCSE and A Levels to students. Key Features Needed: - Live Video Lessons: The system should be able to deliver live video lessons to students. - Online Lessons: In addition to live video sessions, the system should facilitate pre-recorded online lessons. - Student Progress Tracking: A crucial component of the system is its ability to track and display student progress. This helps the students and teachers in understanding the performance and improvement areas. User Interface Design: - The envisioned user interface design should be 'Colorful and vibrant'. This is important as it would be used by stude...
I need a skilled Ruby on Rails expert for a project I'm working on. I need someone who understands the Ruby on Rails framework inside out and can work on our project efficiently. The specific tasks may include: Please check the document before applying the jobs Thank you
Google big query - for writing sql queries for the complex data
...the AI pair programming LLM. The primary functionality of this application will be to assist users in coding with intelligent code suggestions, aiming at an advanced Python level. Key Responsibilities: - Developing the application using Python, C++, SQL, and React. - Concentrating on providing intelligent code suggestions as a core feature. - Ensuring the application's capability to handle advanced level Python coding. - Create proper documentation of the code and features introduced. Ideal Skills and Experience: - Proficiency in Python, C++, SQL, and React. - Previous experience in developing intelligent coding or suggestion systems. - Deep understanding of machine learning concepts and their applications. - Familiarity with application development for coding assis...
Looking for experience developer who can develop for me an arbitrage trading system. The requirements are the following: Connect 20 crypto exchanges (CEX) there API so can watch the prices of 100 cryptocurrencies which we will provide. Allow us to connect crypto exchanges accounts API with the arbitrage trading system and execute the trades by a single click. The system is for personal use. More details via call.
I'm in need of an experienced developer or team to design and implement a fully-fledged Field Service Management System. Key Features: - **Scheduling and Dispatching**: The system must effectively manage and assign tasks to over 50 field technicians, ensuring optimal use of resources. - **Real-time Tracking**: Tracking the location and progress of technicians on the field is essential for efficient service delivery. - **Work Order Management**: Maintain a clear overview of tasks assigned, completed, and pending. System Integration: - **CRM**: seamless integration with our Customer Relationship Management system, ensuring smooth communication. - **ERP**: Inclusion of Enterprise Resource Planning will streamline the overall management of resources a...
# Project Summary: Short Video Recommendation TensorFlow Lite Model # Objective: Create a TensorFlow Lite model for short video recommendations in a Flutter app, using Firebase Firestore as the database and Firebase ML for deployment. # Requirements:* 1. Recommend videos based on user's liked videos, excluding watched videos. 2. Include popular content to prevent user from getting stuck on the same topic. 3. Use Firebase Firestore to store video data and user interactions. # Workflow: 1. Fetch video data and user interactions from Firestore. 2. Calculate similarity scores between liked videos and remaining videos. 3. Include popular content in recommendations. 4. Train and deploy the model using Firebase ML. # Deliverables: 1. TensorFlow Lite model for video recommendations. 2. In...
I'm seeking a skilled Laravel developer to add substantial features to my existing law firm management system. Urgently needed. Key requirements: * Expertise in Laravel * Prior experience with legal or similar management systems * Comprehensive understanding of how to develop and integrate specific features
I'm looking for a developer capable of creating a crash game prediction application for Android. The software should possess capabilities for historical data analysis and game result forecasting. Key features include: - Utilizing game statistics: The app should efficiently analyse and utilise game statistics to forecast results. - Forecast game results: The application should effectively predict outcomes based on analyzed historical data and present trends within the games. The ideal applicant should have experience in developing similar systems and a deep understanding of data analysis algorithms. Experience with gaming or betting systems would be a plus. Familiarity with Android application development is a must.
...Customize the Perplexica interface to align with our design and integrate it into the existing framework • Upload PDF: Allow premium users to upload up to 15 MB or 2-3 PDFs into chats • System Prompt: Allow system prompt input like Ollama UI does • Admin Panel Final: 1. Add a button to gift a 1-month subscription when editing user info 2. Access chat histories when editing user details 3. Provide daily, weekly, monthly, and total token usage statistics for both 3.5 and 4.5 4. Display the number of daily, weekly, monthly, and total premium subscriptions purchased 5. Show a graph of the top 10 countries with the highest recent access • User Settings: 1. Edit username, password, and full name; update language and country 2. Enter and store billin...
Seeking a talented developer to create a WordPress plugin with specific features to enhance customer engagement and streamline operator interactions. Here's what I'm looking for: 1 Chat operator with payment per minute 2 Creation of ...operators with username and password generated by me where they receive the chats, see the history of the minutes 7 ) Access users to their personal area to top up, chat with other operators and see remaining minutes The plugin must work on several websites and not just one Ideal Candidate Should Have: - Proficiency in WordPress plugin development. - Experience with e-commerce and billing systems. - Knowledge of chat system integrations. - Ability to deliver under tight deadlines. If you have the required skills and can work quickly, ...
I require someone with a legal background, preferably from India, to draft a 3-4 page document on the Indian judiciary system. The document should thoroughly research and address two key aspects: 1) Proposed changes to the selection process of the Indian judiciary- including the establishment of a Union Judicial Service Commission (UJSC) aligned with the UPSC to aid in the selection process of the Higher Judiciary and similarly creation of a State Judicial Service Commission for the selection of lower judiciary members who can advance within the hierarchy through promotion, among other recommendations. 2)Solutions for addressing the issue of long pending cases in India- This includes proposals to expedite the case registry process, such as involving a third party for swift document...
Hi, we require an SQL macro that we need to be able to delete EAN codes that have less than 8 numbers from the import. So EAN codes that have between 1 and 7 digits must be removed from the import. We use a software called StoreManager that uses SQL. The formulas entered in the software look like this IF([CSV_COL(16)]=0 OR[CSV_COL(16)]=‘’ OR[CSV_COL(16)]<0,‘’,[CSV_COL(16)]) Payment and/or Milestone after the problem has been solved.
...functionality. Key Responsibilities: - Enhancing the existing dashboard by adding new features and functionalities. - Ensuring that the dashboard has real-time data update and interactive capabilities. Data Sources: - The data sources for this project include databases (SQL, NoSQL) and local files (CSV, Excel). Ideal Candidate: - Proficient in Tableau with a proven track record of developing and enhancing dashboards. - Experience working with real-time data sources and interactive dashboard elements. - Understanding of SQL and/or NoSQL databases. - Familiarity with data visualization best practices. I am looking for a professional who is not only skilled in Tableau but also understands the importance of user experience in data visualization. Please provide some exam...
...you passionate about programming languages and eager to make your mark in the IT industry? Look no further! We’re hiring talented individuals to join our dynamic team. Position: Software Engineer Domain: Finacle (Banking) Location: Major cities in India and international locations Why Choose Us? Comprehensive end-to-end training in Unix/Linux, JSP, HTML, Core Java, Node JS, Node red, Oracle SQL, and PLSQL. Exciting projects in the banking domain Opportunities for growth and career advancement Terms and Conditions: Commitment: Minimum 3 years with us Training: First month (free accommodation), followed by competitive salary Performance-based increments from the second year onward Global travel opportunities Qualifications: - While we do not have any specific certificat...
I am looking for a skilled web developer to create a website for my transportation business. The primary purpose of the website will be for billing and inventory management. Key Features: - Employee Management: The website should allow me to manage the access of up to 5 employees to the billing and inventory management system. - Customer Database: The system should be able to store and manage customer information. - Invoice Generation: The website should have a feature that allows for the generation of invoices. The website will not require online payment support as this will be handled separately. Ideal Skills: - Strong experience in web development - Proficiency in creating user-friendly interfaces - Understanding of transportation or logistics business pro...
I'm seeking a seasoned resume writer, with a knack for crafting resumes focused on the IT industry and a comprehensive understanding of executive-level priorities. - Your target audience will be, primarily, senior decision-makers in IT recruitment. - Also, the resume must highlight my skills as an Architect. Ideal Candidate: - Proficient in resume building for executives. ...Your target audience will be, primarily, senior decision-makers in IT recruitment. - Also, the resume must highlight my skills as an Architect. Ideal Candidate: - Proficient in resume building for executives. - Knowledge of the IT industry (java Full Stack development) and architect roles. - Excellent communicator with collaborative editing skills. - MongoD...
...analyst with expertise in SQL and R to conduct a thorough review and testing of a recently completed data analysis project. The successful candidate will be responsible for evaluating the accuracy and completeness of the work, ensuring all requirements are met, and identifying any potential issues or opportunities for improvement. Responsibilities: Review the SQL queries and R scripts used in the project for accuracy and efficiency. Test the data outputs to ensure they align with the project requirements. Verify that all analysis reports are complete and adhere to the specified guidelines. Provide a detailed report outlining any issues found, confirming requirement fulfillment, and suggesting any potential upgrades or improvements. Requirements: Proven expertise in ...
I'm seeking a Python developer experienced with SSH to create a script that enables network configuration and system monitoring tasks. Key skills/Experience: - Proficient in Python programming - Familiarity with SSH and its operation
As the project approaches completion, I am in need of a seasoned PHP developer to perform system enhancements. There's already an existing system at hand that could use your expertise to make it more efficient and user-friendly. The ideal candidate would possess the following skills and experience: - Proficiency in PHP development and database management - Experience in API integration - Strong understanding of the software development life cycle - Proven track record of enhancing existing systems - Detail and solution-oriented mindset Please take note that specific tasks can't be provided at this moment, all we need is to enhance the system. Your rate should reflect this requirement.
... Crucial to this project is the incorporation of sophisticated data tracking capabilities and a distinctive coupon generation feature. Key Aspects: - An intelligent data tracking system should be in place, capable of performing: - Customer behavior analysis, to help predict purchase patterns and tendencies. - Inventory monitoring, to keep a watchful eye on stock levels and alert for required replenishment. - Sales tracking, to keep an accurate record of the business's sales. - A unique coupon generation feature allowing customers to enter a code to avail of particular discounts or rewards. The design should be customer-friendly and intuitive. Skills And Experience: - Strong experience in web development and eCommerce platform creation. - Expertise in creat...
I'm in need of an expert who can proficiently answer queries related to the cardiovascular system in medicine. The focal points of our inquiry could range from the heart's anatomy, blood vessels or even cardiac diseases, as our specific topics are not strictly defined. The perfect candidate for this task would possess: - Extensive knowledge in various areas of cardiovascular medicine. - An ability to provide detailed explanations on diagnostic and treatment aspects. - Clear and precise communication skills. By clearing these queries, their knowledge will efficiently translate into our understanding of cardiovascular medicine. We look forward to sharing a productive dialogue with the right professional.
I'm in need of a full-fledged ERP system, akin to SAP, but with a customized bidding module. Key Features: - Inventory, Financial, Human Resources Management: The system should include these traditional ERP features. - Bidding Module: This module is crucial. I require an intuitive, user-friendly system for creating and managing bid requests. The system should display bid status and progress accurately and in real-time. Moreover, automatic notifications of bid results are essential for the smooth functioning of the module. Design Preferences: - The design of the bidding module is paramount. It should be clean, minimalistic, and modern. I'd also like some customization options available for the design to suit our company's br...
I'm looking to create an extension that adds live broadcasting capabilities to an existing WEBRTC-based video conferencing system from Github. This extension will be specifically designed for my PHP-based social networking site. In addition to these features, the live broadcasting system must function seamlessly with the existing structure of my PHP social networking site: 1. User Authentication for Broadcasting: The broadcasting system should allow user authentication to secure the broadcaster's channel. 2. Push Notifications for Live Streams: When a host initiates a live broadcast, a push notification should be delivered to followers or subscribers. Ideal freelancers for this project have a solid grasp on PHP, WEBRTC broadcasting systems, and social ne...
...responsibility will be to develop an interface similar to figma and with the functions below. *Does not need to be identical to figma, but maintain logic. Link Figma: How it works: - The entire user journey is gamification. - The user chooses a project that has x days (screen 1). Then you must mark the completed days (screen 2) in the app to earn coins. - The coins are on the top bar (Fixed) and starts with 0 coins. - The number of user coins and complete days must be saved in a local sql-lite database. Summary: - Create app with Expo 50 and TypeScript; - The data must be saved in a local database. This project is offline, but there must be online synchronization support with the offline-first approach
...Wix website for my dental practice. Primary features of the website are: - Appointment booking system: A calendar integrated system allowing patients to book appointments online. Moreover, the system should provide automated reminders and allow multiple service selections. - Landing page for advertisement: promotions and special offers. It should also include an integrated calendar displaying available appointment slots for potential patients to book directly from the page. Lastly, a section for contacts and leads is required. Ideal candidates for this job are those adept with Wix platform and have previous experience in similar projects. Strong understanding of user interface and web design along with knowledge of booking systems is critical. A successful...
I'm looking for a professional who can assist in the successful installation of Open Journal Systems (OJS) on share hosting system without any errors. Key responsibilities include: - Setting up OJS on a Linux environment, ensuring it runs smoothly - Configuring OJS to work correctly under the Linux operating system Ideal skills and experience for this job would include: - Proficient in Linux system administration - Prior experience with OJS installation - Strong communication skills to provide clear guidance on the installation process. one day job . work will only release when project complete without any error
Seeking a developer with experience in C# and SQL for a predictive artificial intelligence project. Your role will involve developing a model to predict user behavior on a vending machine, utilizing data stored in SQL Server. Proficiency in artificial intelligence is required. Please don't send a bid to later try to increase it. Will be declined.
I am seeking an expert in Python to design a basic face recognition attendance system. This project integrates a MySQL database, driven by a Python-based face recognition component. Ideal skills for the project include: - Proficiency in Python - Experience with OpenCV, TensorFlow, Dlib, or comparable libraries - Proficiency with MySQL databases Primary tasks will be: - Developing the face recognition component - Creating and integrating a MySQL database schema - Making informed suggestions regarding model training Your expertise and creative solutions will play a huge role in this project. I look forward to your ideas!
Stepping Back Through Data I have a table of orders, lets say. I'm trying to find all the "Completed" orders, and then step back through other "Cancelled" orders for the same Customer, that were created within 72 hours. The trick is, I want to keep stepping back until I don't find anymore orders (the 72 hour window will now be based on the last order found). Also, the logic should stop if it finds another "Completed" order for the same customer. I've included a test table and data, as well as an expected output. CREATE TABLE #Order ( OrderID int, CustomerID int, OrderDate datetime, OrderStatus varchar(25) ) INSERT INTO #Order VALUES (1, 1, '02/15/2024 07:00 AM', 'Cancelled') INSERT...
I need a talented SQL developer to create a stored procedure that will automate the process of marking certain items as 'picked up' in our Microsoft SQL Server database. This script should essentially replicate the functionality of our existing Windows application, performing the necessary changes in the database to reflect this status. Key Requirements: - Strong command of SQL and experience in Microsoft SQL Server is essential. - Familiarity with Windows application development is a plus, as this script should mirror the behavior of our existing front-end tool. - Previous experience in creating SQL stored procedures for automating database actions is highly preferred. - Attention to detail and the ability to trace SQL commands accurate...
I am looking for a specialist to design and implement a water level monitoring system specifically for the water tanks present within moving vehicles. The ultimate aim of this system is to ensure an adequate and consistent water availability via continuous monitoring. Key Features and Requirements: - ​​The system should provide visual alerts on a dashboard and in case of low water levels, alerts must be generated. - This will require a familiarity with employing appropriate sensors, embedded systems, microcontrollers storing data in cloud, LoRa WAN, SIM communication and designing intuitive user interfaces for non-technical personnel. Ideal Candidate: - Experience in the design and development of monitoring systems., industrial grade embedded syste...
We are looking for a front-end developer to assist in building a reservation system for a trampoline park, which consists of: - POS system - Website - Website displayed on tablets for customer registration The project is based on the following technologies: - Single Page Application - The backend is written in Django (DRF) and PostgreSQL - Microservices architecture based on Docker and Docker Compose - GIT - CI/CD Requirements: - Good command of English - Ability to write clean, bug-free, and scalable code - Minimum 5 years of experience in building web applications - Very good knowledge of and React - Excellent communication skills Nice to have: - Knowledge of Polish or Spanish language - Knowledge of Python / Django The project is expected to last for several months wi...
I am in need of an expert developer to build a loan management software with certain essential features. The system should be able to: - Process loan applications efficiently. - Manage borrower information accurately. - Track loan repayment attentively. - Compute and manage profit and loss. - Monitor expenses effectively. Moreover, the developed software should also have the capability to: - Generate detailed financial reports. - Track income and expenditure in a user-friendly manner. - Monitor financial performance intuitively. Ideally, the software will have distinct user roles and permissions for an Administrator, Loan Officer, Accountant, and Client. Candidates should have extensive experience in creating financial/loan management software, and a strong understanding of fin...
As a fast-growing company, I need a professional well-versed in to streamline our boards and processes. This includes: - Establishing connections for our 'Leads', 'Scheduling', 'Patients', 'Reports', and 'Billing' boards. - Incorporating vital automations in our system such as task assignment, deadline triggers, document creation and reminder notifications. - Designing insightful dashboards namely, a Sales performance dashboard and a Financial dashboard. The ideal person for this job should have extensive experience and a proven track record in implementing and enhancing systems in monday.com. Their capabilities should extend to interpreting our company's needs into automated processes, and creating intuitive dashboard...
...on a custom domain. I believe the minimalist design will promote simplicity and emphasise my portfolio itself rather than the design aspects of the site. Ideal Skills and Experience: - Proven experience in website creation on custom domains - A strong understanding and appreciation for minimalist design principles - Ability to bring concepts to life, balancing both functionality and aesthetics The final product should be a clean, sleek, and easy-to-navigate website, reflecting the minimalistic style while providing exceptional user experience. My expectation is for a thorough, detailed-oriented professional who can capture my vision and translate it into a fully functional portfolio site. Things to be done Load an API data into on premise SQL server databa...
I need a smart attendance system for College Student , main focus is Attendance on Different subject like DBMS , PYTHON , JAVA , Etc which utilizes facial recognition technology. Like I want to take Attendance for all the subjects, so in take attendance there should be a option or drop down for the list of Subjects You want take the Attendance Key Elements: - On the main page/home page I need user to register with there Name, Id ,Phone number - And then a Button to take attendance on different subjects using Facial Recognition , in which there should be a option or drop down for the list of subjects - And one main Feature is to show a Pie chart which represents how many students has attended DBMS class , Python class etc - Attendance should be saved in XL Sheet and Pie chart s...
