Website design custom feature bug fixes jobs

I'm looking for an expert in 3ds Max to create a highly detailed an...should have a suitable lighting scenario for indoor venues. This means that the lighting should be optimized for both day and night to provide a realistic experience for the viewers. Ideal Skills and Experience: - Proficiency in 3ds Max: You must have extensive experience with 3ds Max, as the project requires a high level of technical skill and expertise in the software. - Lighting Design: Experience in lighting design for 3D animations would be very valuable. The ability to create a realistic lighting scenario for indoor venues is crucial for the success of this project. I'm open to suggestions and ideas to make this project more engaging and successful. Please include relevant samples of your ...

I'm looking for an experienced developer to create a custom payment gateway so that I can offer it to other websites or merchant. This gateway will only be given to websites and not apps. Key Features: - The payment gateway should primarily focus on accepting international credit card payments effectively. Skills and Experience: - Proficiency in payment gateway development - Experience in creating gateways for websites - Understanding of international payment processing - Strong security implementation for financial transactions - Ability to create a user-friendly interface for customers Optional: - Integration with popular e-commerce platforms such as Shopify, WooCommerce, or Magento would be a bonus. If you have a solid track record in building payment gateways and can ...

...showcasing the functionality of a unique idea I have. Key Responsibilities: - Develop a functional, user-friendly app for both iOS and Android - Implement all necessary features to demonstrate the concept's functionality - Ensure smooth user experience with intuitive design Ideal Candidate: - Proven experience in cross-platform app development - Strong understanding of iOS and Android development guidelines - Adept at creating apps with a focus on demonstrating specific functionalities - Ability to deliver a polished, bug-free product I want a developer to create an app that can be sideloaded (not go through stores) where a simple user interface with buttons pre-programed to 'send pictures' to a pre-determined inbox. the person has the optio...

I'm in need of a seasoned WordPress professional who can integrate a local payment gateway into my existing WooCommerce website. Cart page gets product but when we press Proceed Payment Button, it says no payment method available despite WooCommerce methods are active and one local method is installed. Key Requirements: - I have a specific payment gateway installed for this integration, so you'll need to remove error. - My website is already configured for payments, but it needs to be modified to work with this new gateway. - I want this process to be seamless and error-free, with the payment gateway functioning perfectly post-integration. Ideal Skills and Experience: - Prior experience with WooCommerce payment gateway integrations is a must. - Familiarity with...

...developer to become the business CO-FOUNDER. This individual must possess proficiency in back-end development and DevOps experience, database management, and server administration and must be a self-starter capable of overseeing the all website aspects. This is a position for a leader who has dreams, passion and ambition to be on the ground-floor of a business they believe in and a with the desire to want play a major role in our success. Our site and apps are in the final stages of completion and I have a team of developers currently in motion for the website and iOS/Android apps to fix bugs and optimize our operation. This responsibility would be to manage PRs, oversee performance, take proactive steps to resolve issues either by fixing yourself or assigning to a deve...

...developer with extensive experience in Grafana to help integrate APIs and build custom plugins for my analytics and visualization web application. Key Responsibilities: - Custom API Integration: You'll be tasked with integrating a custom API for InfluxDB. This is a critical part of the project. - Custom Plugin Development: I need plugins that can handle a range of tasks including sending custom emails with attachments, automating the creation of users and dashboards, and developing custom maps and charts with computed data. - Heatmap with Computed Data: One of the custom maps I need is a heatmap with computed data. You should be able to design and implement this in Grafana. - Choropleth Map with Computed Data: The other cu...

I'm seeking a professional who can create a custom tool that enables me to send bulk WhatsApp messages from a Windows PC. It must allow for message personalization, incorporating the recipient's name into each message. I anticipate working with large volumes, so the tool should be capable of handling more than 500 recipients. The ideal candidate should: - Be experienced in developing Windows applications, particularly those that involve sending bulk messages - Demonstrate a strong understanding of the WhatsApp API and its limitations - Have a proven track record in creating tools that can customize messages based on recipient information - Be able to deliver a user-friendly and reliable tool that can manage high-volume messaging efficiently Please only bid on this projec...

...user-friendly, visually appealing, and have a robust set of features. Before actually starting with this project I have a bug fixing project. If you successfully do the fixes we can discuss the details of the fitness app as well. Key Features: - Workout Routines: The app should provide users with a variety of workout routines, spanning across Cardio, Strength Training, and Yoga. These routines should be customizable to meet individual needs. - Nutrition Tracking: The app should include a feature that allows users to track their daily nutrition intake. This should be an easy-to-use interface with a wide array of food items for logging. - Social Sharing: A social feature is required that allows users to share their progress, achievements, and insights with fri...

I am seeking an experienced Squarespace-Zapier-Mailchimp expert to integrate various features. 1. Squarespace Integration: You will be tasked with synchronizing Forms, E-commerce products, and CRM with Zapier and Mailchimp. 2. Mailchimp Integration: The integration should incorporate custom fields such as address and company details from Squarespace forms. 3. E-Commerce Data Integration: The integration of e-commerce product data to Zapier is solely for Mailchimp use. Ideal applicants will have experience in Squarespace integrations, Mailchimp, and Zapier. Familiarity with CRM systems would be a huge plus.

...I need someone who can handle theme customization, plugin development, and general website maintenance. Key Responsibilities: - Customize themes to fit my brand identity and unique requirements - Develop new plugins or customize existing ones to add desired functionality - Ensure the smooth operation and upkeep of the website The main objective of this project is to create a fully-featured website that covers all areas from blog to eCommerce. This means the developer should be well-versed in both front-end and back-end development and should have experience with: - Building and maintaining WordPress websites - Customizing themes from scratch - Developing and integrating plugins - Ensuring overall website security and maintenance - Implementing eCommerce f...

Notes------- stay away timepass and without knowledge increase budget I am seeking a skilled freelancer to develop a comprehensive matrimonial CRM system with integrated WhatsApp communication and backend integration. The CRM should streamline lead management, communication, and data synchronization between the website backend and CRM platform. Here are the key features required: 1. Customizable pipelines for lead management and sales process tracking. 2. Dedicated hotline feature for direct communication with call logs. 3. Negative client management system to track and resolve complaints. 4. Lost client management system to capture feedback for improvement. 5. Profile sending tracking to monitor the distribution of user profiles. 6. Last interaction reminders and follow-u...

Need an expert in WordPress custom theme development with PHP coding. No time wasters! Experience with Elementor page builders is a plus, but not required. Thanks!

I'm in need...of an experienced React and Node.js developer to assist in the development of a web application. You'll be responsible for front-end development, user interface design, backend development, and database management. Key responsibilities: - Front-end development: You should have a solid understanding of React.js and experience in designing user interfaces. - Backend development: Proficiency in Node.js is a must, as you'll be handling the server-side development. - Database management: Knowledge of database technologies and experience in managing databases is required. Your main goal will be to work collaboratively to develop a feature-rich web application. If you're experienced in both React and Node.js and can offer your expertise on an hou...

I'm looking for a skilled professional who will astutely transform my medium-sized kitchen. The final design should embody creativity and practicality, loosely based on the drawings and inspiration that I have available. Key features I wish to incorporate are: - A Kitchen Island: I require a viable layout that accommodatively adds this important feature without hampering the workflow in the kitchen. - Ideas on Finishes: Expert suggestions on aesthetic finishes that seamlessly align with the overall design are a necessity. Candidates with proficient planning skills and adept knowledge of contemporary kitchen designs will be ideal for this project. Experience in successfully including kitchen islands in medium-sized spaces will be highly regarded.

I am looking for an experienced Ionic Developer to fix my app. i have an issue with my app that can't be build to Android SDK 33+. I've tried uninstall some plugin which is end up crashing at splashscreen as it only display a white blank. The job is to make my app can be build to Android SDK 33+ and compatible with lower SDK, no more error, crash and missing current feature i.e running in backround, notification, GPS. You have to make detail documentation on how you do it and what setting did you use, the timeline is 4 days and i'm willing to pay you $120 and that's final offer. And please, APPLY IF YOU UNDERSTAND WELL THE CASE AND WILLING TO BE PAID AS I OFFERED.

...assist with bug solving. Currently, my website is experiencing functionality issues, particularly with e-commerce transactions that are not processing as they should. Key responsibilities include: - Diagnosing the root cause of the issue and proposing a solution - Implementing a fix to ensure e-commerce transactions work smoothly - Ensuring the overall functionality of the website remains intact post the bug fixing Ideal candidates for this role should have: - Proficient experience in WordPress development and e-commerce platforms - Strong problem-solving skills to effectively diagnose and resolve the issue - Excellent communication skills to keep me updated on the progress of the project and any necessary changes - A proactive and detail-oriented approach ...

I'm seeking an experienced and innovative designer to create a thematic invitation for a corporate event. The invitation's design should impeccably blend white, gold, beige, copper, bronze, and champagne tones, brilliantly reflecting the corporate identity while ensuring readability. The theme should be reflected in every aspect of the invitation's design, making it arresting yet sophisticated. - Essential Design Elements: - Colors: The design should incorporate white, gold, beige, copper, bronze, and champagne. - Theme: A unique and appealing theme pertinent to a corporate event. We also want a 3D pop up effect for the invitation. Our company name is called Elegance. I have attached our logo for reference. Inspo pictures of the kind o...

This is a custom project for you, building on the concept of the recent contest and with additional specs as discussed.

Creating Custom Shopify Website

I am looking for an exp...expert who can help me with backing up my website. The goal is to ensure that the website structure and content (text and images) are seamlessly transferred to an offline copy. The source website has about 20-30 pages. Key Requirements: - The source website is custom JS-based, so I need someone with experience in handling such websites. - The backup should focus on preserving all pages, their content, as well as images and media files. Ideal Skills: - Proficient in website backups. - Familiarity with JavaScript-based websites. - Expertise in preserving website structure and content during migration. - Attention to detail to ensure all elements are accurately backed up. Please let me know your relevant experience ...

As an informational hub aimed at professionals, we are after a website designer that can provide stunning aesthetics alongside functionality. Key Features: - The website should essentially act as a repository of valuable information, neatly structured and easily accessible. - Additionally, the website needs to have downloadable content feature. The download feature should be user-friendly and secure. Skills and Experience: - Proven experience in designing user-friendly informational websites is a must - Previous work with professionally focused websites would be a plus - Familiarity with implementing secure and streamlined download features will be highly beneficial for this project. We are entrusting the visual face of our professional resource to yo...

I'm in need of an experienced individual to migrate my current Moodle site from a shared server to a dedicated server. This move is primarily to prepare for an expected increase...migrate my current Moodle site from a shared server to a dedicated server. This move is primarily to prepare for an expected increase in traffic, and I'm looking for someone who can not only handle the technical aspects of this migration but can also help with optimizing the server for improved performance. Key Requirements: - Expertise in server migration, specifically Moodle - Ability to create a custom configuration for performance optimization - Prior experience in handling increased traffic on a dedicated server Please only apply if you have experience with Moodle and can guarantee a smoot...

I am currently working on my own custom indicator in Pine Script. However, it's not functioning as efficiently as I'd like it to - it’s immensely slow. Therefore, I am inviting freelancers with seasoned experience in Pine Script and especially on speed optimization matters. This project would mostly appeal to someone aware of and familiar with: - Proficiency in Pine Script - Experience optimizing code for speed - Understanding of trading indicators The job would entail: - Increasing the speed of my custom Pine Script code - Ensuring the logic and functionality of the script remain intact after optimizations - Conducting necessary tests to confirm enhancement of speed and efficiency Interested freelancers, please detail your experience related to code opti...

I'm seeking a skilled professional to develop a custom Telegram bot for me. While no specific features or design aspects have been chosen, the ideal freelancer should be adaptable and prepared to discuss potential options based on their expertise. Key Responsibilities: - Consult on potential features and design aspects. - Develop a user-friendly Telegram bot. Required Skills and Experience: - Proven track record of developing Telegram bots. - Excellent consulting and communication skills. - Creative problem-solving abilities. This project requires someone who can not only do the job competently but also provide valuable suggestions on possible directions we can take this bot. Let's discuss and decide together. I look forward to hearing from you!

...Development Job Description: We are seeking specialists in App and Software Development, ready to transform technical concepts into practical and innovative solutions for our global clients. If you have a passion for developing applications that make a difference, we want you on our team. Responsibilities: - Android and iOS App Development: Create mobile applications that stand out in the market. - Custom Web Applications: Develop tailor-made web solutions to meet specific client needs. - Desktop Software Development: Create efficient computer programs for various industries. - Enterprise Resource Planning (ERP) Systems: Develop and implement ERP solutions to enhance clients' business processes. - E-commerce Solutions: Build robust and secure e-commerce platforms. - System...

I am looking for a skilled data entry specialist with advanced proficiency in excel. The project at hand is a one-time copy typing task. The task involves: - Entering a variety of data types into an excel spreadsheet (Text, Numbers, and Dates). - Creating a custom excel template with less than 10 columns. Ideal skills and experience for the job include: - Proficiency in using Excel, especially in data entry tasks. - Strong attention to detail to ensure all data is accurately entered. - Experience in creating custom excel templates is an added advantage. Please note, I will provide the document that needs to be copied and expect the resulting spreadsheet to match the information exactly.

Looking for a chrome extension created similar like If you already having experience, please connect then only. Urgent needed. If you're having already a extension it will be good to customize it and use.

I'm looking for a professional to develop a Telegram bot that can send automated me...Messages**: The primary function of the bot is to send automated messages, but the messages will vary in nature. The bot should be able to send reminders, daily updates, and promotional content as well as other options as the menu dictates. - **Custom Menu**: The bot should also be equipped with a menu that users can interact with. This menu will include key options like contact information and FAQ. Ideal candidates for this project should be well-versed in Telegram bot development and have a strong understanding of user experience and interface design. A creative and innovative approach to bot development is highly valued. If you have experience with similar projects, please provide...

I'm looking for a professional to develop a Telegram bot that can send automated me...Messages**: The primary function of the bot is to send automated messages, but the messages will vary in nature. The bot should be able to send reminders, daily updates, and promotional content as well as other options as the menu dictates. - **Custom Menu**: The bot should also be equipped with a menu that users can interact with. This menu will include key options like contact information and FAQ. Ideal candidates for this project should be well-versed in Telegram bot development and have a strong understanding of user experience and interface design. A creative and innovative approach to bot development is highly valued. If you have experience with similar projects, please provide...

I'm looking for a skilled developer to build a comprehensive online payment and wallet management system which integrates with three banks (Bank A, Bank B, Bank C). Key Features: - Online Payment: The system should facilitate online transactions seamlessly. - Bank Account Linking: It should allow users to link their bank accounts for ease of transactions. - Transaction History: A feature that displays a detailed transaction history for users to monitor their payments. Security Requirement: - Two-Factor Authentication: The system should ensure added security through two-factor authentication to prevent unauthorized access. You will be provided with a detailed overview of our project goals to ensure the system meets our specific needs. The ideal candidate for this project shou...

I am seeking a website designer with experience in creating sleek and modern designs. The project involves designing a brand-new blog where economics is the key theme. Key Features: - The blog will consist of sections covering Macroeconomics, Microeconomics, and International Economics - It should have the capability to enable readers to post comments - A subscription feature to allow users to receive newsletters or updates - A search functionality for easier navigation through blog posts Ideal Skills: - Experience in creating clean, modern designs - Proficient in graphics design - Familiarity with blog concept - Knowledge in designing user-friendly websites with multiple functionalities

I'm looking for an experienced PHP Developer to create a user account management system for my ad publishing website. Key Functionalities: - User Account Management: This system should allow for User Registration and Login, Profile Management, and Account Settings. - Ad Posting Features: Implement the ability for users to Post Ads, Boost their Ads, and Manage Ad Details. - Optional Payment Integration: The system should support payment functionalities via API, enhancing the user experience. This feature is optional but would be beneficial for our service. Your Responsibilities: - Develop a user-friendly and secure system that ensures a seamless user experience. - Integrate the required features and ensure they function efficiently. - Provide clean and well-documented ...

...skilled programmer to assist in developing a taekwondo scoring system. The project entails crafting code for a system comprising one master and four slave devices all to be programmed using Arduino. Wireless communication between the devices will be facilitated through the ESP-NOW protocol. The job entails several key responsibilities: For the SLAVE devices coding : 1. Each slave device should feature an initialization green LED that indicates successful wireless communication with the master device. 2. Additionally, each slave will have two LEDs, one red and one blue, which will illuminate when specific buttons (B1 to B3 for blue team, R1 to R3 for red team) are pressed by the user. 3. With a total of six buttons per slave device, each responsible for assigning marks to either...

I need a professional PHP developer to upgrade my website from PHP 7.4 to PHP 8.2. The main goal of this upgrade is to ensure compatibility with the latest version of PHP. The ideal freelancer for this project should have: - Extensive experience with PHP development - Proven track record of successful PHP upgrades - Knowledge of the differences and potential issues between PHP 7.4 and PHP 8.2 - Ability to troubleshoot and resolve any compatibility issues that may arise - Strong communication skills to keep me informed throughout the process If you have experience with third-party services or APIs that may need to be tested for compatibility with PHP 8.2, please indicate this in your proposal. Additionally, if you have experience with custom features or functionalities that ...

I'm looking for a professional to create a customized Word and Outlook template for my marketing materials. The template should include: - Custom color scheme - Logo integration - Unique font styles The Word template should have: - Header and footer areas - Predefined text sections - Table of contents The ideal candidate should have experience in designing and customizing Word and Outlook templates, as well as a good understanding of marketing materials. A keen eye for detail and the ability to create visually appealing yet professional designs is a must. Looking forward to working with a creative professional on this project.

...inventory management process. The ideal candidate will have a deep understanding of Google Sheets functionalities and be adept at creating seamless workflows using Google Forms. **Responsibilities:** - Develop a Google Sheets template for maintaining stock and plywood inventory data. - Implement formulas and functions to automatically update current stock levels based on purchase and sale entries. - Design intuitive Google Forms for entering purchase and sale data. - Integrate Google Forms with Google Sheets to ensure real-time updating of inventory data. - Provide guidance on best practices for efficient data management and organization within Google Sheets. **Requirements:** - Proven experience in creating advanced Google Sheets templates and automating processes. - Profici...

I need help to fix the issues we're facing with our Progressive Web App (PWA). I'm looking for an experienced developer who can assist in diagnosing and rectifying the issues we're currently facing with our PWA. Requirements: - Understanding of Progressive Web Apps - Understanding of Magento 2.4 We had a PWA built for our ecommerce site, however its never worked properly and actually impacts on even simple daily tasks - the freelancer who developed this for us is unwilling to assist correcting the problems. Customers are now identifying that the app is not working and they are walking ie we are loosing customers, orders and money. Freelancers bidding on this project will be expected to show evidence of PWA running from Magento. The chosen freelancer will be hired on a...

I'm looking for a skilled photo editor who's experienced in handling the specific requirements of professional photographers. Key Features: - The editor should be well-versed in applying various filters to enhance the visual appeal of the photos. - It should have the capability to efficiently crop and resize images without compromising on quality. - An essential feature is the ability to perform accurate color correction, ensuring the pictures have the desired tonal balance and color accuracy. File Format & User: - The software should support PNG file format, as most of the images I work with are in this format. - While the editor will be used primarily by professional photographers, it's important that the interface remains user-friendly and accessible to thos...

...for my business. This project includes: Here are some of the reference website. I need to match the same quality of the website and design layout. Reference 1 : Reference 2 : Reference 3 : You can also share some similar demos or templates that we can use to reduce the price as our budget is on the lower side. - Custom Theme Design: The design is expected to be a blend of Minimalist and Modern styles. Your creativity in implementing these design elements will be key to delivering a visually appealing and user-friendly site. - Custom Functionality Development: This part of the project involves creating new functionalities for the website. Specifically, we need to include Product Customization Options, Advanced

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I am looking for a proficient React Native developer with experience in using Expo. I have an idea for a field service management application that needs to be developed for both Android and iOS platforms. Key Requirements: - Utilize React Native with Expo to create a robust field service management app for Android and iOS. - Implement a Google Map feature and a function to calculate the distance between two points. - Develop a background service that tracks agent activities with the user's permission. Ideal Skills and Experience: - Proven experience in developing React Native applications, particularly using Expo. - Strong understanding of Google Maps integration and geolocation services. - Previous work on implementing background services in mobile apps. - Familiarity with f...

...should automatically retrieve shipping rates from FedEx to provide accurate shipping cost information for each order. - **Printing Shipping Labels:** A key feature is the ability to generate and print shipping labels. This will help expedite the shipping process and ensure accurate labeling for each parcel. LOOK AT THE FIGMA: KEEP IT SIMPLE Ideal Skills and Experience: - Strong PHP programming skills - Experience with WooCommerce integration - Familiarity with database management - Previous experience working with FedEx API - UI/UX design for a simple and efficient packing interface - Understanding of e-commerce order processing If you're confident in your ability to deliver a reliable and efficient

...critical issues on my website. Key Points: - The specific issues I'm encountering are not listed, but I require immediate assistance to rectify them. - Given the urgency, I am looking for a developer who can promptly identify and resolve the issues efficiently. Ideal Skills and Experience: - Proficiency in WordPress development, with a strong track record of quickly identifying and resolving various issues on WordPress websites. - Adept at troubleshooting and problem-solving, particularly under time constraints. - Strong communication skills and a professional work ethic are essential. - Experience in managing urgent website issues and making quick fixes will be highly advantageous. If you have the above skills and can promptly assist with my WordPress ...

I'm looking for an experienced music producer who can create a chill and relaxed hip-hop beat for me. The beat should have a soothing, laid-back vibe that listeners can easily vibe to. Key Requirements: - Genre: Hip-hop - Mood: Chill and relaxed - Instruments: The beat should prominently feature the piano and acoustic guitar. The goal is to give the beat a real, authentic vibe with natural-sounding instruments. Ideal Skills and Experience: - Proven experience creating hip-hop beats - Ability to create beats with a specific mood or vibe - Proficiency in working with a variety of instruments, particularly piano and acoustic guitar - Understanding of the hip-hop genre and current trends - Strong communication skills to ensure my vision for the beat is met

I require an iOS developer to create a mobile app that focuses primarily on listing places to eat, drink and visit. The main feature crucial for the mobile app is item listing. A practical understanding of user experience paradigms and their application in developing listing apps is key for this project. Previous work samples in the F&B, Hotel domain will be greatly valued.

...developer with extensive experience in Grafana to help integrate APIs and build custom plugins for my analytics and visualization web application. Key Responsibilities: - Custom API Integration: You'll be tasked with integrating a custom API for InfluxDB. This is a critical part of the project. - Custom Plugin Development: I need plugins that can handle a range of tasks including sending custom emails with attachments, automating the creation of users and dashboards, and developing custom maps and charts with computed data. - Heatmap with Computed Data: One of the custom maps I need is a heatmap with computed data. You should be able to design and implement this in Grafana. - Choropleth Map with Computed Data: The other c...

...assistance in several key areas. This requires a deep understanding of Wazuh, as well as other security systems that it can interact with. Key Responsibilities: - Installing and configuring Wazuh on my network. - Integrating Wazuh with my existing SIEM, IDS, and Log Management systems. - Developing custom rules in Wazuh as needed for my specific requirements. The ideal candidate is expected to be proactive, responsive to emails and also have a keen eye for security issues that may need custom rules to be created. Previous experience with Wazuh is important, as is a strong familiarity with the systems Wazuh is likely to interact with. This includes SIEM, IDS, and Log Management systems. Your ability to work independently and effectively communicate through written corre...

I'm looking for a talented game developer who can help me revamp an existing UNITY game. Your role will involve: - **Reskinning**: Giving the game a fresh, new look while ensuring it retains its core mechanics and functionalities. - **Adding Extra Features**: Implementing new and engaging features that will help enhance the game's overall appeal.

...WordPress-based e-commerce website for my business. The end goal is to have a platform that facilitates the online selling of my products and services. Key Functionalities: - **Contact Form**: The site should feature a user-friendly contact form, allowing potential clients to get in touch easily. - **Testimonials Section**: I would like a dedicated section where satisfied customers can leave testimonials. This will help in building trust with potential buyers. - **Product/Services Showcase**: The website should include a visually appealing and well-structured showcase of my products and services. Ideal Skills and Experience: - Proven portfolio of similar e-commerce websites - Proficiency in WordPress, with experience in customizing themes and plugins - Strong ...

I'm seeking a skilled developer to help create a peer-to-peer crypto exchange platform with wallet integration. Key Features: - The platform should support both Bitcoin and Monero. - A user-friendly wallet integration feature is essential. - A chat feature would be beneficial for real-time communication. Target Audience: - The portal will cater to individual investors and crypto enthusiasts. Ideal Skills and Experience: - Proficient in blockchain technology - Experience in developing cryptocurrency projects - Strong technical skills in creating secure platforms - Ability to incorporate essential features like a chat function Please provide examples of previous work in this field.