Work samples zen cart implementationงาน

Debug a bit racket program. Debug racket ค่ะสนใจติดต่อได้เลย

I'm looking for a writer to research and write a "How-to" eBook for more than 7,000 words and my budget is $70 USD for 7,000 words. . Paymaent conditions: Full payment upon completion (No upfront fees) Deadline: 14 days upon project acceptance. Upon project completion, you agree to me having the full rights to the eBook and its content. . To apply, please send me your past work samples so I can better evaluate your writing style . --- ผมกำลังมองหานักเขียนที่จะมาศีกษาหาข้อมูลและเขียน eBook แนว "วิธีการ" ความยาวกว่า 7,000 คำ ผมมีงบ $70 สำหรับการเขียน 7,000 คำ . เงื่อนไขการจ่ายเงิน : จ่ายเต็มจำนวน เมื่องานเสร็จ (ไม่จ่ายล่วงหน้า) กำหนดส่งงาน : 14 วัน หลังจากตอบรับงาน เมื่องานเสร็จสิ้น คุณตกลงที่จะให้ผม/ฉันมีสิทธิ์ใน eBook และเนื้อหาดังกล่าวทั...

created program for sticker label printing with printer (Attached files are the samples) - Barcode - QR code - Image - Text Contact >> ทำโปรแกรมการพิมพ์เลเบล (ตัวอย่างเลเบลในเอกสารแนบ) สามารถพิมพ์บาร์โค๊ต คิวอาร์โค๊ต รูปภาพ และตัวหนังสือ ลงไปในเลเบลได้ สามารถติดต่อขอตัวอย่างโปรแกรมที่ต้องการได้จาก FB :

ฉันมีงานต่อเนื่องที่เกี่ยวข้องโปรเจคของเราก่อนหน้านี้ 'Design for the New Logo brand " JOINFULL "'

ฉันมีงานต่อเนื่องที่เกี่ยวข้องโปรเจคของเราก่อนหน้านี้ 'Draw image to cartoon contest #2'

I have ongoing work related to our previous project 'Design me a logo, business card, linkedin cover and letterhead'

We are seeking an experienced freelancer with expertise in networking and cybersecurity to help us find a robust solution for IP masking. Our goal is to ensure that our requests are processed successfully at the other end without being flagged as PROXY IP users. Currently, we utilize web proxies, primarily residential proxies, for various purposes. However, we encounter frequent failures when the receiving system identifies our requests as originating from PROXY IPs. Challenges: 1. IP Score Impact: We’ve observed that IP scores play a significant role in request success. While requests from CLEAN or LOW Spam Score IP addresses often pass, those from HIGH SPAM score IPs face rejection. 2. Recognition as PROXY IP: Our solution must not only allow requests to pass but also prevent them ...

I'm seeking a talented illustrator with the ability to create semi realistic line art. The illustrations will be focused around portraits and will be utilized for commercial purposes. I can pay $3 for 2 line art illustrations. Ideal Skills and Experience: - Proficiency in semi realistic line art - Prior experience in creating portrait illustrations - Understandin...illustrations will be focused around portraits and will be utilized for commercial purposes. I can pay $3 for 2 line art illustrations. Ideal Skills and Experience: - Proficiency in semi realistic line art - Prior experience in creating portrait illustrations - Understanding of commercial design and usage - Strong communication skills to understand and deliver my vision Please provide samples of your previous w...

I'm in need of a skilled digital print designer for a clothing line. The prints I need include abstract, floral, and geometric designs. These will be used for dresses. Key Responsibilities: - Create high-quality digital prints design - Design prints that are suitable for clothing, particularly dresses,crop-tops,co-rds,t-shirts, - Ensure the prints are original and in...software such as Adobe Illustrator - Strong portfolio of previous digital print designs, particularly for clothing - Understanding of fashion trends and willingness to adapt designs accordingly - Excellent communication skills to understand and fulfill design briefs If you have a passion for fashion, a creative flair, and a keen eye for detail, I'd love to hear from you. Please include samples of your w...

I am looking for a Shopify + Wordpress developer with specific expertise in custom theme developmen...expertise in custom theme development. The ideal candidate will have experience in the US time zone and be available for full-time work. Specific requirements for this project include: - Custom theme development for Shopify - Familiarity with app development for Shopify - Store setup and configuration Industry experience is not a requirement for this project, any industry experience is acceptable. In order to separate spammers from real candidates, if you agree with this statement please write it on top of your bid: "I am available to work in the US time zone and have X hours left available TODAY!" - where "X" is the amount of hours you have available ...

We have a number of PSDs we use for news articles - where we paste in a person's photo and another photo. These are essentially templates. Some have designs, some are simple, etc. I need some more of these made - 5 for $35 Samples available to qualified bidders.

...prototyping, along with an understanding of web3 functionalities. - Effective communication skills and the ability to work closely with developers to ensure accurate implementation. How to Apply: Interested candidates should submit: - A brief introduction detailing their experience and suitability for the project. - A portfolio link showcasing relevant UI/UX design projects, particularly those involving gaming, betting, and blockchain technologies. - Initial ideas or concepts for the MetaMatch app, reflecting the inspirations and requirements discussed. Selection Criteria: - The relevance and innovation of the portfolio to the project requirements. - Creativity and practical implementation of previous UI/UX projects, especially with web3 integrations. - Demonst...

...Prior experience in user interface redesign will be an added advantage. Backend: - The primary task on the backend is to handle the implementation of new APIs. This requires a solid understanding of backend systems, particularly within the MEAN stack. Database: - While the frontend and backend are important, the database is equally crucial. Any expertise in optimizing database queries is a valuable skill I'm looking for. The ideal freelancer for this project should have: - Proven experience with MEAN stack development - A strong portfolio of similar projects - Excellent problem-solving skills - Good communication and collaboration abilities - The capacity to work independently and proactively If you believe you're the perfect fit for this project, please do a...

I'm seeking a video-creating genius to develop engaging entertainment nature content primarily featuring mountain views. The videos will be targeted towards a teenage audience, so it needs to be c...Proven experience in video creation and editing, particularly targeted towards a younger audience. - A demonstrable understanding and appreciation of natural beauty, specifically, mountain landscapes. - An innovative mindset to make the content intriguing and engaging for teenagers. - Reliability to ensure quality and on-time delivery of the projects. In your proposal, please include samples of your previous work related to nature videography, and mention how you plan to make mountain landscapes appealing and entertaining for a teenage audience. Looking forward to your uniq...

I want to have a car rental website compatible with SEO work. I bought a domain

I need a skilled C++ developer to improve the lighting and shading effects in my project. The project involves implementing Ray Tracing & Phong Shading in C++ to create more realistic lighting and shading effects. The scenes to be created will be of basic complexity, involving simpl...implementing Ray Tracing & Phong Shading in C++ to create more realistic lighting and shading effects. The scenes to be created will be of basic complexity, involving simple shapes and lights. Key requirements: - Implementing Ray Tracing & Phong Shading in C++ - Creating 3D scenes with basic shapes and lights - Optimizing the implementation for Linux deployment Ideal skills and experience: - Proficient in C++ and 3D graphics - Experience with Ray Tracing & Phong Shading - Previous ...

I am in need of a skilled blockchain developer who specializes in Ethereum to create a smart contract for asset management. Key Responsibilities: - Develop a smart contract on the Ethereum and other platforms - Design the contract to facilitate asset management Create tokens Ideal Candidate: - Proficient in Ethereum & Blockchain platform - Experienced in creating smart contracts ...Ethereum and other platforms - Design the contract to facilitate asset management Create tokens Ideal Candidate: - Proficient in Ethereum & Blockchain platform - Experienced in creating smart contracts - Strong understanding of ERC-20 token standard - Prior experience in asset management on blockchain - Familiarity with secure and efficient coding practices Please provide relevant samples of y...

I'm in need of a skilled web developer to construct an E-commerce website for my retail business. Key characteristics that the website must have are: - A shopping cart for customers to review their selected items before purchasing. - A product review feature that allows customers to share their thoughts and experiences about the product. - A robust stock management system to keep track of inventory and sales. The ideal freelancer for this project should have previous experience developing retail E-commerce websites. Experience with shopping carts, product review systems, and stock management system implementations is a must. Knowledge in SEO-friendly designs, mobile-first strategies, and secure payment systems are also crucial for this project. Your success in this project...

Tasks : 1. Construct a queueing model that replicates a week of collecting and processing DNA samples. a. First develop a flow diagram of how the process works, from the reporting of a crime, to the eventual match/no match on the DNA database. b. Identify any conditional aspects of the process, for example if there are any stages of the process where resources only become available once the previous sample has been processed. c. Second, write out the relevant equations associated with each step of the process, and construct a formula for the overall time in system. d. Use relevant notation and write out equations using Equation Editor in Word. e. Note – the rule of thumb is that any reader can pick up your report and replicate your results by following the methods. 2. Use me...

...articles must be: - AI Free (AI detection score must be 5% or below) - Plagiarism 0% - Professional tone and quality content. Payment Criteria: - Initial payment will be for the first article, then, weekly for 3 articles. - 10 NZD/Article (1250-1400 words) (Fixed, not hourly) - Weekly 30 NZD - You can work as long as you want meeting our requirements. The ideal candidate for this role has: - A passion for cricket - Proven experience in sports writing, particularly cricket (Must show samples in this niche). - Strong research and analytical skills - The ability to produce high-quality, engaging content on a regular basis If you're proficient in cricket knowledge and can deliver engaging, informative cricket articles consistently, I'd love to hear from you. St...

Good morning, for my client i need to make an implementation on WooCommerce - on the store the client selects a product and then the website sends a query to the website - provide the number of products on the network. The system will then return a list of places with available quantities of a given product. The system API is in JSON format. An authorization token is required to execute the query.

I'm looking for a professional PowerPoint whiz to create a captivating business presentation. Key Project Details: - **Purpose**: The main goal of th...that aligns with my brand's identity. I'm looking for a freelancer with: - **Experience**: Extensive experience in creating business PowerPoint decks. Samples of similar work would be highly beneficial. - **Design Skills**: A good eye for design and layout, someone who can make complex information easy to understand. - **Branding Knowledge**: Understanding of how to incorporate brand elements into the design without compromising on clarity and aesthetics. - **Communication**: Be able to understand my business goals and translate them into a visual story. If you feel you're up to the task, please bid wit...

I have a design on Canva that I'd like to transfer to my Wix website. The website is intended to be a platform that provides information about my business. Key Requirements: - Implement the design from Canva to Wix accurately and aesthetically. - Create a contact form on the website to enhance user interaction. Ideal Candidate: - Proficient in website development using Wix. - Skilled in translating and implementing designs from Canva. - Experience in setting up contact forms on websites.

I need an experienced Magento developer to install the latest version of Magento 2 on my VPS. I also require the installation of a specific theme (Theme A) and potentially some modules to enhance the functionality of the website....desired look and feel. - Potentially install some modules based on your expertise. While I have not specified any particular module, I am open to recommendations that align with the goals of my e-commerce site. Timeline: I need this project to be completed as soon as possible. Ideal Skills and Experience: - Proven experience in installing Magento 2 on VPS. - Proficiency in Magento theme implementation, specifically with Theme A. - Good understanding of e-commerce website functionality. - Strong communication skills to provide recommendations on suitabl...

...Features**: I need the website to have a Product search/filter functionality, Wishlist functionality, and Product image zoom-in feature. The site should be extremely user-friendly. - **Target Audience**: The target audience for this website is both men and women. So, the design and functionality should cater to both. - **Additional Pages**: Aside from the standard e-commerce pages like Home, Product, Cart, and Checkout, I need an About Us page, FAQs page, and Contact Us page designed. Additionally, I would like to have Collection, Influencer choice pages designed as well. I'm bilingual, fluent in Bengali and Hindi, so if you have knowledge in those languages, it would be a plus. Ideal freelancers for this job should have: - Extensive experience in Shopify website deve...

...Wallets - Secure and reliable payment processing for customers - Ability for customers to browse, search, and purchase products - Notification system for order status updates - Shopping cart and checkout functionality Ideal Skills and Experience: - Proven experience in developing Android applications - Strong knowledge of mobile app development and UI/UX best practices - Prior experience in developing e-commerce apps would be a plus - Familiarity with integrating payment gateways - Ability to build a scalable and robust app to handle potential growth in users and traffic - Good communication skills and ability to work in a collaborative team environment I am looking for a professional who can deliver a high-quality app within a reasonable timeframe. The project has no st...

I'm in need of a unique and modern logo for my brand, Cosy Co. Stays. Key elements: - The style of the logo should be modern and minimalist, fitting the brand theme. - Design should have a home or abstract house incorporated, symbolizing the essence of an Airbnb business. - The color scheme should feature gold and silver, adding a touch of luxury to the overall de...luxury to the overall design. Ideal skills and experience: - Proven experience in logo design, particularly with modern and minimalist aesthetics. - Experience with incorporating specific elements into logos, such as houses or nature elements. - A strong understanding of color theory, particularly in working with gold and silver. Please include a link to your portfolio or previous logo design samples in your ...

I'm seeking someone with experience in integrating Nupkg packages in Visual Studio. Extra Details: - The successful implementation of the Nupkg package in Visual Studio is crucial to the success of the project. - Some previous work or project proposals in the area would be highly beneficial. - The ideal freelancer should be well-versed in package management and possibly dependency management to ensure the integration is seamless.

I'm in search of an experienced freelancer to develop a WooCommerce E-commerce website for me. It should prominently feature: - A Product Catalog: An interactive product catalog that is easy to navigate and manage is important. You should design it in such a way that it can accommodate a large number of products and various categories. - Shopping Cart: A user-friendly shopping cart with an easy checkout process is essential. It should have the ability to calculate costs, suggest relevant products and provide a smooth user experience. The ideal freelancer for this project should be well-versed in WooCommerce, with a portfolio of E-commerce websites previously built. They should also be knowledgeable in UI/UX design and optimization to ensure my website provides a gre...

I'm seeking a skilled content creator to craft engaging written content for a radio program. Requirements: - You will be creating content that is exclusively for young adults. It is crucial that you understand the interests, preferences and cultural references that resonate with this demographic. - ...It is crucial that you understand the interests, preferences and cultural references that resonate with this demographic. - The primary purpose of the content is to entertain. This means that your writing should be engaging, witty, and possibly with a degree of humor. - Experience in writing content for radio or other auditory platforms would be a distinct advantage. Please provide samples of your previous work and explain your experience in creating content for young ad...

...discuss about clearances and effort - we mutually agree to effort - we assign you the task after mutually agreed - you implement, test and deliver - you provide also unit /integration tests to ensure code is always working - you document each required step to make interaction of systems to work - we test on our premise (you maybe help to fix issues) - we pay (basically the rules of freelancer) Closed book vs open book? We work only on open book. Closed book means you are unwilling to define a WBS for the work and you add only a price tag to the task. We are sorry we will not hire you in such a case! documentation requirements: - well structured - reproducible steps for others - spell & grammar checked coding requirements: - clean code in terms of clean code...

...varying shops to compare regional stock variances. - **Data Entry:** Log into our online platform to input two critical pieces of information for each product: the best before date and the store from where it was purchased. - **Labeling:** Each of the 29 bottles must be labeled in a manner that correlates with the entered data, ensuring no discrepancies. - **Shipping Coordination:** Prepare the samples for shipping. The process for this will be communicated and facilitated on our end to ensure a seamless transition. **Ideal Skills and Experience:** - **Organizational Ability:** Demonstrated proficiency in managing multiple tasks efficiently. - **Attention to Detail:** Accurate entry of product data, understanding of the importance of precise information. - **Communication:** Cle...

...varying shops to compare regional stock variances. - **Data Entry:** Log into our online platform to input two critical pieces of information for each product: the best before date and the store from where it was purchased. - **Labeling:** Each of the 4 bottles must be labeled in a manner that correlates with the entered data, ensuring no discrepancies. - **Shipping Coordination:** Prepare the samples for shipping. The process for this will be communicated and facilitated on our end to ensure a seamless transition. **Ideal Skills and Experience:** - **Organizational Ability:** Demonstrated proficiency in managing multiple tasks efficiently. - **Attention to Detail:** Accurate entry of product data, understanding of the importance of precise information. - **Communication:** Clea...

I am seeking an experienced interior designer to create a modern aesthetic for my residential kitchen. Key Requirements: - Proficiency in residential interior design - Proven track record with modern design - Strong knowledge of kitchen layouts and functionality Your role will include: - Conceptualizing a modern kitchen design that complements the existing residential space. - Pre...kitchen layouts and functionality Your role will include: - Conceptualizing a modern kitchen design that complements the existing residential space. - Presenting visual representations of the design, including color schemes, materials, and furnishings. - Collaborating with me to refine the design to meet my vision. - Providing detailed plans and specifications that can be used by contractors for implement...

I require a specialist to integrate Phonepay SDK into my Android application to facilitate in-app purchases. This demands a comprehensive understanding of the Phonepay SDK, as well as expertise in Android app development. Here's what I need: - Integration of Phonepay SDK into my Android app for secure and seamless in-app purchases. - Guaranteed functionality after integration, with purchasers having a smooth, error-free experience. Ideal Skills and Experience for the Job: - Experience with Phonepay SDK - Proficient in Android app development - Knowledgeable in integrating payment gateways - Proven record in similar projects. The ultimate goal is to deliver a user-friendly application capable of safe and efficient in-app purchases via Phonepay SDK. If you are up for the challeng...

STRICLY NO A.I (there is always spelling mistakes) I'm in need of a professional logo designer for my company, Precision Pipe Repair. The logo will be an abbreviated version, featuring the initials 'PPR' along with a combination of text and symbol. Logo : PPR Company Motto : Second To None Key Requirements: - Initials (PPR) should be the central focus of the ...demonstrating a variety of styles and an understanding of colour theory - Ability to cater to a futuristic and professional theme - A keen understanding of the pipe repair industry and the ability to incorporate this knowledge subtly into the design. If you can bring all these skills to the table and create a logo that meets my requirements, I'd love to hear from you. Please share samples of your pr...

I'm in need of a PowerApp expert to assist with the data input and validation aspects of my project. The data I'm working with is fairly simple, mainly consisting of text and numbers. ( required only technical support online) Key Responsibilities: - Implementing advanced data validation: This includes cross-field validation, custom business rules, ...custom business rules, pattern matching and range validation. Ideal Skills: - Strong PowerApps development experience. - Proficient understanding of data validation principles. - Ability to craft custom validation rules. - Ability to think creatively and solve problems effectively. This is a challenging project and I need someone with a high level of expertise in PowerApps to ensure the implementation of precise and effect...

I'm on the look out for a professional developer experienced in creating engaging cross-platform mobile applications. The application is envisioned to be a playful and interactive app, similar to roleplay AI boats. The application must have the following features: * Chatbot Integration: The main purpose of this integration is to height...and record their progress within the application. Experience with integrating user profile creation and management is crucial. * In-app Purchases: To supplement the gaming experience, a system for in-app purchases needs to be integrated. Being knowledgeable in this area is a must. Fluency in cross-platform development, a keen eye for engaging UI/UX and previous experience with AI/chatbot implementation are the ideal skills I am seeking fo...

...Have a solid understanding of point to point communication systems, specifically both simplex and duplex systems. - Be proficient in using MATLAB for simulations. Following the simulation, we'll analyze the performance of our designed system using several metrics. For the simplex system, we would be interested in assessing its: - Error performance - Power efficiency - Bandwidth efficiency - Implementation complexity - Implications on system design For the duplex system, the metrics for evaluation would be: - Error performance - Power efficiency - Bandwidth efficiency Your role in this project will not only involve the design and simulations but also an analysis of the obtained results. Frames your bid with these factors in mind. Deliverables will be MATLAB files, a rep...

I'm organizing a party and need an eye-catching flyer for promotional purposes. Key Aspects: - Theme: The party is themed around Sol Blume, so the design should reflect this, combining a tropical and retro aesthetic with a splash of neon. - Main Focus: I want the visua...using design software to create visually appealing and cohesive flyers. - Understanding of color theory and how to effectively apply color schemes. - Knowledge of current design trends, particularly in the realm of party flyers. I'm looking for a freelancer who can bring creativity, attention to detail, and a good understanding of the target audience to this project. Please provide samples of your previous work in your proposal. Use picture provided as an inspiration and remove sol blume at the to...

Project Overview: We are seeking a skilled Django developer to assist in building a SaaS platform using the SaaS Pegasus boilerplate. The platform will enable users to subscribe to and manage mobile proxies through integration with a third-party API. The core functionality will include user management, subscr...estimated timeline and quote for the project. Include any questions or clarifications needed to provide a detailed proposal. Selection Criteria: Portfolio showcasing relevant projects. Reviews and ratings from previous clients. Approach to ensuring project success and communication style. Please respond with your proposal detailing your experience, approach to the project, and any previous work samples similar to this project. Looking forward to collaborating on this ...

I need 2000 words of quality work related to Computational Thinking.

I'm seeking a skilled Android developer to create a unique mobile app. The main features of this app will be centered around song lyrics and will also include a shopping functionality. Key features: - An extensive database of song lyrics - C...management and personalization options Ideal candidates for this project should have: - Proven experience in Android app development - Strong familiarity with e-commerce functionalities and payment integration - Prior experience with media-heavy apps, such as music or entertainment apps, will be a plus - Ability to create a visually appealing and user-friendly interface. Please include samples of your previous work in your bid. Your understanding of the project and your past experience in similar projects will be major factors ...

I'm in need of a skilled content writer with a passion for health and wellness. The focus of the task is to provide engaging product reviews catering to a fitness-enthusiast audience. Key Requi...health and wellness, particularly for fitness. Your role is to: - Thoroughly research and understand the products you're reviewing. - Craft compelling reviews that resonate with fitness enthusiasts. Ideal skills and experience for this project: - Prior experience in writing engaging and insightful product reviews. - A background in health and wellness writing. Please provide samples of your previous work in a similar domain or explicitly state your expertise in this area. Looking forward to finding a writer who can help me engage and captivate my fitness-focuse...

Got it! Here's a draft for your job description: **Job Tit...experience in character animation and avatar creation, with a portfolio showcasing previous work. 2. Proficiency in animation software such as Adobe After Effects, Maya, or similar tools. 3. Strong attention to detail and the ability to replicate the likeness and mannerisms of a famous individual. 4. Experience with motion tracking and integrating animated elements into live-action footage. 5. Excellent communication skills and the ability to follow instructions closely. **Additional Information:** - This is a freelance position with a flexible schedule. - The successful candidate will work remotely and must have access to the necessary software and equipment. - Please provide samples of previous wo...

I'm in need of a talented 3D designer that can create realistic renders of melamine furniture pieces. - The furniture type is melamine, and it will consist of a combination of kitchens, wardrobes an... - The furniture type is melamine, and it will consist of a combination of kitchens, wardrobes and tables. - The finish for this furniture is a custom color, which will be provided by me. - I'll need the designer to work on standard dimensions for the pieces, as I don't have specific measurements. Ideal Skills: - Proficiency in 3D design software - Experience in rendering furniture with decorations - Ability to work with custom colors - Understanding of standard furniture dimensions - Attention to detail and a keen eye for realism Please provide samples...

I'm in search of a skilled content writer to produce SEO-focused content for my website. Key Project ...not blog posts or social media. - Primary Goal: The main aim of this content is to boost my search engine ranking, so you should be adept at incorporating SEO tactics seamlessly into your writing. - Keywords: I already have a list of keywords that I need to be incorporated into the content. Ideal Candidate: - Proven experience in writing SEO website content is a must – please provide samples of previous work. - Proficient in keyword optimization, with a keen eye for incorporating keywords naturally into content. - Strong understanding of SEO principles in content creation. - Ability to deliver engaging and high-quality content that is both informative and opt...

I need a talented VB.net developer with a strong background in SQL Server. Key Responsibilities: - Develop software applications using VB.net - Efficiently manage databases - Designing, coding, testing, and debugging software applications using VB.NET. - Calling third-party API - Payment ga...software applications using VB.net - Efficiently manage databases - Designing, coding, testing, and debugging software applications using VB.NET. - Calling third-party API - Payment gateway integration - Stored Procedure Ideal Candidate: - Proven experience in VB.net development - Strong familiarity with SQL Server - Good problem-solving skills - Ability to work independently and meet deadlines. Please provide relevant work samples in VB.net development and describe your exp...

I'm looking for an experienced WordPress developer who can help me add a special functionality to my existing websites by creating a custom plugin. This role is ideal for someone who has: - A high level of competency in PHP, JavaScript, and MySQL and is experienced in WordPress. - Strong understanding of the WordPress plugins ecosystem and knowledge on how to exte...works harmoniously with our existing setup. - Understand our needs and respond to them by customizing the plugin where necessary. Please note that the function to be added to the site leans heavily towards SEO enhancement capabilities. Therefore, a proven track record in developing SEO related plugins is a must. Your proposal should demonstrate a clear understanding of SEO principles and their implementation on a ...