The ultimate guide to hiring a web developer in 2021
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Software architecture is a complex but critical discipline that impacts a wide range of industries. It is the practice of creating a plan or blueprint for constructing every aspect of a software system in order to maximize flexibility, maintainability, scalability, manageability, security, or other critical factors. Software architecture is a basis of efficient software construction and should be the focus of any prospective software project.
A skilled software architecture developer specializes in adding value and creating a powerful framework for the development of software. Their work involves abstract modeling and figuring out how modules interact with each other to support the desired functionality of an application. They also have an eye for detail to enable good UX/UI design and ensure secure coding techniques are employed.
Here’s some projects that our expert Software Architecture Developers had made real:
The level of knowledge and skill possessed by these talented professionals is unmatched when it comes to planning and designing complex software solutions. These experts make sure all necessary tasks get done correctly so that valuable products can be developed without any hiccups.
We invite you to post your own project in Freelancer.com and hire a Software Architecture Developer today to make your next venture successful!
From 385,094 reviews, clients rate our Software Architecture Developers 4.9 out of 5 stars.Software architecture is a complex but critical discipline that impacts a wide range of industries. It is the practice of creating a plan or blueprint for constructing every aspect of a software system in order to maximize flexibility, maintainability, scalability, manageability, security, or other critical factors. Software architecture is a basis of efficient software construction and should be the focus of any prospective software project.
A skilled software architecture developer specializes in adding value and creating a powerful framework for the development of software. Their work involves abstract modeling and figuring out how modules interact with each other to support the desired functionality of an application. They also have an eye for detail to enable good UX/UI design and ensure secure coding techniques are employed.
Here’s some projects that our expert Software Architecture Developers had made real:
The level of knowledge and skill possessed by these talented professionals is unmatched when it comes to planning and designing complex software solutions. These experts make sure all necessary tasks get done correctly so that valuable products can be developed without any hiccups.
We invite you to post your own project in Freelancer.com and hire a Software Architecture Developer today to make your next venture successful!
From 385,094 reviews, clients rate our Software Architecture Developers 4.9 out of 5 stars.Objective: Create a comprehensive platform, ShafCoLink, to streamline operations across ShafCo's ecosystem enhancing collaboration and efficiency. Key features will include integration of advanced AI for demand predictions, personalized promotions, and seamless interaction among stakeholders like resellers, distributors, and customers. The project will also require integration with external platforms such as Shopee, Lazada, TikTok Shop, and logistics services like JNE and SiCepat. An initial consultation phase is included to refine budget estimations and technology strategies.
I'm seeking an experienced Laravel developer to create a shortcode for a job application form. This will pop up from the job application button. The form should collect the following information: - Name - Email - Year of experience - Current Location - Prefered Location - Resume Upload - etc details can be modified latter... Once completed, the form should securely save the job application details into a newly created table in the database and the candidate's resume to the server. The form must also include advanced validation for the fields, such as checking for a valid email format and phone number format. Ideal skills for this project include: - Proficiency in Laravel - Experience with database management - Knowledge of form validation techniques - Understanding of secu...
I'm looking for a data analyst with strong skills in MS Excel, Java, and HTML. The primary focus of this project is to analyze and report on sales data. Experience in data visualization and reporting is crucial, as the results will need to be presented in a clear and coherent manner.
I am in need of a comprehensive database system for my church. The primary focus of this database is member management and donation tracking. I would like it to store specific member details such as contact information and attendance records. Key Features Required: - Store contact information and attendance records of church members. - Allow access to both Admin and members, with appropriate permissions. Ideal Skills: - Database management - Software development - Understanding of access control systems
I'm seeking a skilled developer to repurpose any astrology engine. This engine should be capable of generating elaborate, personalized horoscope reports in PDF format based on user-provided birth details (date, time, place). These reports should provide in-depth interpretations covering: - Planetary positions and their effects - Predictions for various life aspects including career, health, relationships, and finance - Analysis of Doshas with suggested remedies - Examination of Yogas and their benefits - Identification of favorable time periods (Dashas, Bhuktis, Transits) - Additional insights into numerology, gemstones, and auspicious dates The programming language or framework for the engine hasn't been specified, so the choice is flexible. The PDF reports can be in any forma...
Looking for a Freelancer to Create a RAG Database for Storing Professional Documents We are seeking a skilled freelancer to develop a robust Retrieval-Augmented Generation (RAG) database capable of storing approximately 2 TB of professional documents. The database will mainly consist of PDF files that include text, images, and diagrams, in multiple languages. Key Requirements: Storage: Handle up to 2 TB of data, with a scalable solution for future needs. Languages: Support for multilingual document storage and retrieval. Ease of Use: A simple and intuitive interface for managing and accessing documents. Implementation: The solution must be implemented on our server, ensuring optimal performance and security. Advanced Search: Capability for semantic search and retrieval...
Just fix issues mentioned above only
I'm experiencing a problem with my .NET software. The application is encountering an error at a specific API endpoint, resulting in an 'Invalid Request' exception. I require assistance in resolving this problem. The ideal candidate for this project should: - Have extensive experience with .NET software development - Be proficient in debugging and troubleshooting .NET applications - Have a strong understanding of API interactions
I'm seeking a skilled Python developer with a strong background in social media integrations. My current script operates on telegram and needs some updates to incorporate new functionalities with other social media platforms. Key Requirements: - Experience with Python and social media platforms, particularly Facebook and Instagram. - Proven track record in developing and updating scripts to add new features. - Ability to implement user interaction monitoring into the existing script. The primary task will involve enhancing the script to include user interaction monitoring. If you have a knack for improving scripts and can deliver a high-quality job, you might just be the person I'm looking for!
Excel Data Loading : Python coding ************ This project comes with Non-Disclosure Agreement ( NDA ) ************* Expecting to automate Data Loading into Excel Step 1 : There's a VA Excel Plugin which we have subscribed provides the data from their VA website (VA Plugin ) & this data dump gets populated into Excel 2 Data sheets which needs to be downloaded are Standardized Data (SD) & Company Data (CD) Automatically need to Login to Visible Alpha plugin and download the data ( Can skip this part, not needed ) After we get this SD & CD data, with some formula Surprise analysis & Source count both populated in Surprise analysis Sheet Now this is Base or Primary file which consists of SD, CD, Surprise analysis data Step 2 : Only the required Line item...
I need a skilled developer to create a bot that automates the process of sending messages to a WhatsApp group. The bot should pull information from Google Sheets and send a different message every 5 minutes. The messages will include text and images. Key Requirements: - The Google Sheets will be formatted in a custom format for the bot to read. - The bot needs to have error handling capabilities and send notifications via WhatsApp in case it fails to send a message. Ideal Skills: - Proficiency in Python or JavaScript (or any other language suitable for creating a WhatsApp bot) - Experience with Google Sheets API - Familiarity with WhatsApp API - Ability to create a custom format in Google Sheets - Knowledge of error handling and notification systems
I'm looking for a skilled developer to update my stock market trading application. The primary focus is on enhancing the stock data features. Key Features: - Stock LTP, Bid/Ask spread, Volume, OI, Change% - Option Chain - Company details - Interactive Bar Charts - Notifications - News updates via Shoony API - User interaction through WhatsApp OTP & messaging The ideal candidate should have extensive experience in developing stock market applications, with a strong understanding of stock data visualization and user interaction features. Proficiency in creating interactive bar charts and integrating with APIs is essential. Excellent communication skills for coordinating the user interaction aspect will be highly appreciated.
here is the webiste link : We are encountering an issue with our pagination and category filtering functionality. When a user is on the first page of the pagination and selects a category, the items are filtered and displayed correctly based on the selected category. However, when the user navigates to any subsequent pagination pages and then attempts to select a category, no items are displayed. Steps to Reproduce: Navigate to the first page of the pagination. Click on any category to filter items – items are displayed correctly based on the selected category. Navigate to any subsequent pagination page (e.g., page 2). Click on any category to filter items – no items are displayed. Expected Behavior: Items should be filtered and displayed based on the selected category...
I have got this. Want need is Do Full setup and installation which includes server setup, apps setup, branding and publishing to stores android and IOS
I'm looking for a skilled programmer to create a Windows-based solution for automating the process of creating company ID PSD files. The program should be compatible with Adobe Photoshop CC 2019 - 2021. Key Requirements: - The program should pull information from provided Excel sheets and generate barcodes in the Code 128 and code 39 format. - The PSD files need to be automatically saved in PNG format. - It should work seamlessly with Windows and the specified version of Photoshop. Ideal Skills: - Proficient in programming and automation - Experience with Adobe Photoshop scripting - Knowledge of barcode generation - Excel data manipulation skills
I'm looking for a developer to create a bot for my memecoin on the XRP ledger. The bot's main function is to impose a flat percentage tax on every transaction. Key Features: - A flat percentage tax of 7% applied to all transactions - The tax collected should be sent to 4 seperate specific wallet addresses Ideal Skills and Experience: - Proven experience with bot development - Deep understanding of the XRP ledger - Prior work with memecoins is a plus The goal is to ensure every transaction contributes to this tax. Please provide examples of similar projects you've completed in your proposal.
I'm seeking a Python expert well-versed in Generative AI and Vertex AI for this project. The purpose of this project is to enhance capabilities for my existing business. Requirements: - Detailed project proposals are essential. Your proposal should outline how you intend to approach this project and the methodologies you plan to use. - Demonstrated experience and expertise in Python, Generative AI, and Vertex AI. - Ability to deliver the project within a month. Please ensure your proposal is comprehensive and clearly demonstrates your understanding of the project.
I'm looking for a skilled Pine Script developer who can convert my Amibroker indicator into a TradingView compatible version. The new script should retain all the essential functionalities of the original indicator, including: - Buy/Sell signals - Custom alerts - Visual chart elements (like lines, shapes) The ideal freelancer for this project should have extensive experience with both Amibroker and TradingView, as well as a deep understanding of Pine Script. It will be crucial for the custom indicator to work seamlessly within TradingView, providing the same level of functionality and performance as it does in Amibroker.
Project Description: I am looking to hire a developer to create a bot that can monitor specific websites for changes or updates. The bot should continuously check the designated websites and immediately send an email notification when a specific condition is met (e.g., a new slot is available, or a change is detected). Key Features: Monitor multiple websites at specified intervals (e.g., every 30 seconds). Detect specific changes or availability (e.g., new slots, text updates). Send real-time email notifications when changes are detected. Use Python with Selenium or a similar technology for automation. Allow easy configuration of websites, conditions, and email settings. Deliverables: A fully functional bot script. Instructions for setting up and running the bot on my machine. Assistanc...
Create a solana bot able to create coins on [login to view URL] and buy from different wallets and manage all from the bot. • Available as Web Console and Desktop CLI. - Able to perform on pumpfun and any token on raydium • Create and Manage your token launches all from a convenient console • Snipe & Farm: buy without being front run and sell by using “exit liquidity”, literally harvest liquidity from the token by selling into buy orders until the market cap drops below a threshold • Stealth Mode: use the build-in SOL mixer to obfuscate the flow of your SOL. Avoid blockchain analysis and bubble maps that could reveal your central dev wallets. • Remove LP: Remove the liquiduity pool and sell all your sniped bags automatically at a defined m...
This project is a versatile web and mobile platform specifically designed for personal trainers, fitness coaches, nutritionists, and sports centers. Its primary goal is to provide advanced tools for client management, the creation of personalized training/diets plans, and detailed progress tracking, all powered by innovative features such as artificial intelligence, gamification, and data analytics. Coaches can upload their own exercises/diets, create fully customized routines with parameters like sets, repetitions, rest times, and intensity (%RM, RPE), or leverage AI tools to generate automated plans tailored to their clients’ fitness levels, goals, and preferences. These plans can be easily reviewed and edited, ensuring they meet the unique needs of each client. The platform also...
I'm seeking a dedicated team of developers to create a comprehensive, cloud-based Point of Sale (POS) system tailored for the retail industry, compatible with Windows PCs. This system needs to encompass all fundamental components such as inventory management, HR oversight, cash handling, stock assessments, and automated end-of-day reporting. This software allows companies to sign up and start using it for their own businesses. We are licensing it to other companies to use. Key Features: - Integration with a government-provided API, ensuring compliance and system approval. - A modern and sleek user interface, embodying contemporary design principles. - A limited scope for user customization, focusing primarily on predefined settings. - MUST WORK ONLINE AND OFFLINE. Ideal Candidates ...
I'm seeking a talented software developer or team to create sports software focused primarily on enhancing athlete performance. This project will also encompass features aimed at improving fan engagement and streamlining operations. Key Aspects: - The software should be designed with an athlete's needs in mind, utilizing data analysis and technology to create an effective performance-enhancing tool. - To increase fan engagement, the software should incorporate live streaming of events, interactive fan polls and quizzes, and social media integration. - The live streaming component will require additional functionality including real-time commentary, multiple camera angles, and an interactive chat during events. Ideal Skills and Experience: - Proven experience in software develop...
I'm seeking a skilled developer to create an Android-based wallet app with a unique twist - the ability to create partner wallets. This feature will enable users to share and manage funds with a partner, making it an ideal solution for couples, friends, or business partners. Key Features: - Partner Wallet Functionality: The app should allow users to create a shared wallet with a partner. This includes features for tracking contributions, spending, and balance. - Secure Transactions: Given the nature of a wallet app, security is paramount. The app must ensure safe transactions and protect user data. Ideal Skills: - Proven experience in Android app development - Strong skills in creating secure, user-friendly interfaces - Prior work with financial or wallet apps is a plus - Ability to...
I'm seeking a developer who can create a system that allows me to upload images via APIs to ChatGPT, which will then generate descriptions of the images. The system should be capable of remembering previous images and their recaps to provide context for future uploads. after u make the system above you make to replace the ai in my main code to the ai u just created and debug the code so everything works the main code ai is similar it takes in images 1 at a time and recaps it but it doesnot have any idea about the pervious character just the recap so i want it so it reconizes the previous character its action and with that info it recaps/summirizes the next image i provide the amount you bid is the amount i pay thats my final budget Key Requirements: - Integration with the OpenAI AP...
I'm looking for a Webex BOT that my customer can use in the Webex App to create a help desk ticket in Connectwise Manage. The BOT should perform the following tasks: - Create new help desk tickets - Update existing tickets - Check ticket status The authentication method for the Webex BOT is still undecided, so I would appreciate your advice on the most suitable option. When creating a new help desk ticket, the BOT should capture the following information: - User details - Issue description - Priority level The BOT should also be able to capture user details from the Webex account that is currently logged in. Ideal Skills and Experience: - Proven experience in developing Webex BOTs - Familiarity with Connectwise Manage - Knowledge of different authentication methods and their impl...
We are seeking a skilled Python developer to design and optimize a robust tool capable of importing and processing hundreds of thousands of rows of data while interacting with an internal API. The tool must achieve a throughput of at least 10,000 transactions per second (TPS), with a preference for even higher performance. The data import process will be semi-automatic, requiring real-time updates to the imported content, as the source file will dynamically grow or shrink with the addition or removal of data. Once the import and processing begin, the tool should produce two output tables: 1. A table containing the processed data. 2. A table with manually selected entries. To elaborate your entry, please submit a big-data example of your choice that showcases: - Efficient handling of larg...
I need a skilled developer to connect my Custom POS System to a Standalone WiFi-enabled credit card terminal. This connection should facilitate seamless payment processing and customer data syncing. Key Requirements: - Proficiency in server-client architecture and WiFi connectivity - Experience with POS system integration - Understanding of payment processing systems and customer data syncing - Skill in working with Standalone credit card terminals Please submit your proposal if you have the required experience and can ensure a smooth connection between my POS and the credit card terminal.
I'm looking for a skilled web developer who can create a script for me to automate tab navigation . - The script should operate through a website or an app. - The primary function of the script is to help me download multiple PDFs from the web without having to click each one individually. Example 1. 2. In the search box, you enter one Patent number. “US5551212” 3 then you would have to go to the download tab and click download and save I would like to be able to put a list of Patent numbers put a list of Pat numbers: US5512121 US5542135 US6712321 Etc Have it run through the script to download the pdf(s) to a folder desktop I’ve done this in the past, but it’s been years ago my coding mind is not up to it nowadays And easy to use cheap app maybe at or...
I seek a seasoned web developer to renovate , with a focus on creating reusable header and footer files for integration into individual pages. The renovation includes: 1. Creating header and footer files in css, php, and javascript. The code must be straightforward - no esoteric coding, no WordPress. 2. Cleaning up existing individual pages to eliminate unnecessary bloat. For instance, the source code for should become straight HTML text. It's not necessary to extract the HTML text for each individual file, as I already have them. (See attached, for sample.)The visual appearance of the pages will remain unchanged. 3. Providing one or more css files to work with the altered structure. The CSS needs to accommodate any screen size. The specific requirements for the project include: ...
I'm looking for a skilled blockchain developer with expertise in Web3 and smart contract development, specifically tailored for supply chain management on the Binance Smart Chain (BSC). Key Requirements: - Develop a smart contract that enables tracking and tracing of goods. - Implement functionalities for automating payments and settlements within the supply chain. - Incorporate features for verifying the authenticity of products to ensure integrity and trust within the supply chain. The ideal candidate should have a deep understanding of blockchain technology and its application in supply chain management. Previous experience with BSC is highly preferable. Please provide examples of similar projects you've completed in your proposal.
I'm in need of a fully automated spoofing software designed specifically for the stock market. The primary function of this software is to generate fake buy/sell orders. Key Requirements: - Experience in developing trading software, especially spoofing software - Understanding of the stock market dynamics - Ability to create fully automated systems - Knowledge of ethical implications and legal boundaries of software development in finance
SaaS will offer two dashboards, one a business facing dashboard with multiple operations and integrations and the other is a white label consumer dashboard with relative information. 1. Business CRM -Dispute letter library with placeholder tags consisting of letters for Credit Bureaus, Original Creditors, and Debt Collectors. -Open API -Integrated with to automatically send letters with the click of a button -Ability to add team members -Import new and updated credit reports for clients 2. Secured Client Portal -Custom dashboard showcasing credit scores, dispute status & report data -Client onboarding process to upload documents -Client/Agency messaging via the portal -Section for affiliate links/credit card offers and more
SaaS will offer two dashboards, one a business facing dashboard with multiple operations and integrations and the other is a white label consumer dashboard with relative information. 1. Business CRM -Dispute letter library with placeholder tags consisting of letters for Credit Bureaus, Original Creditors, and Debt Collectors. -Open API -Integrated with [login to view URL] to automatically send letters with the click of a button -Ability to add team members -Import new and updated credit reports for clients 2. Secured Client Portal -Custom dashboard showcasing credit scores, dispute status & report data -Client onboarding process to upload documents -Client/Agency messaging via the portal -Section for affiliate links/credit card offers Key Features: - Comprehensive dispute management...
I'm seeking an expert CRM developer to create a multi-functional CRM system that encompasses sales tracking, marketing automation, and customer service management. The system must include, but is not limited to: - Lead Management - Email Marketing Campaigns Integration - Customer Support Ticketing System - Post Scheduler for Social Media - Follow Up Automation - Survey Creation - Email Verification and Validation The ideal candidate should possess extensive experience in CRM development, with a strong focus on sales and marketing applications. Proficiency in integrating various features and tools within the CRM system is crucial. The ability to design a user-friendly system that automates follow-ups and schedules social media posts is highly desirable. Please provide relevant samp...
I'm in need of a dynamic excel sheet that will assist in managing the daily and weekly activities of our vehicles. This sheet should be able to track various aspects such as: - Maintenance schedules: Keep tabs on when each vehicle is due for maintenance. - Fuel usage: Monitor fuel consumption over time to identify any discrepancies or patterns. - Trip logs: Record details of each trip for future reference. The ideal freelancer for this project should be highly proficient in Excel and have experience in creating dynamic, interactive spreadsheets. They should also have an understanding of vehicle operations and be able to incorporate relevant features into the planner. Key features of this planner should include: - Automated scheduling: The sheet should be able to automatically sche...
I'm in need of a comprehensive research paper that focuses on how to incorporate cutting-edge AI methods into chemical engineering procedures, with a strong emphasis on maintaining personnel safety, process integrity, and data security. The paper should also explore the best practices for process optimization and regulatory compliance within this context. Key areas to cover: - Cutting-edge AI methods in chemical engineering - Best practices for ensuring safety and security during AI integration - Process optimization techniques - Strategies for meeting regulatory compliance - Ensuring process integrity at all times Ideal candidates for this project should have a strong background in chemical engineering, AI technologies, and safety protocols. Experience in writing research papers or...
Hi there! I'm in need of a seasoned Python/ML or R professional who can assist with the development of a machine learning model. I will share you more details in via chat box. Thank
I need to add new features to my existing PHP-based CRM. The main focus is on advanced reporting and incorporating user testimonials into the system. Key Requirements: - Integrate advanced reporting capabilities into the CRM. - Implement a feature for adding user testimonials. The advanced reporting should come with several custom settings, including: - Customizable dashboards - The ability to export reports to different formats - Scheduled automated reports Ideal Skills: - Proficiency in PHP and CRM development - Experience with implementing advanced reporting systems - UI/UX skills for integrating user testimonials in an appealing way
For a client, I have just set up a VPS with Odoo. YOU WILL FIND THE FOLLOWING ELEMENTS READILY INSTALLED: - Debian 12 - Odoo 18 (Community/ On-Premise Version) - Let's Encrypt SSL Certifcate - Domain - Gnome (if you would like to use a Graphical Interface) - KDevelop (as the software to manipulate Python and PHP) The system is working, properly. I need you to apply changes WITHOUT TRIGGERING AN ODOO SUBSCRIPTION. Changes need to be applied without "Studio", "Hidden Menu", or other Subscription Apps/ Modules. I NEED NO CHANGES REGARDING THE ADMIN: We need a very simple setup for a very simple project at this time. The Odoo Administrator/ Master user is not of importance regarding your help: The Administrator's full access and record rights can be...
The ResQMedic system is a platform specifically developed for the simulation of fire and rescue service operations in online role-playing games. Its goal is to enable a realistic flow of operations while simultaneously ensuring efficient communication, documentation, and management. The system integrates various modules, including a central app called ResQProtocol, which is essential for operation documentation. This is complemented by a variety of functions and tools that serve both administrative and operational purposes. Thanks to its flexible architecture, ResQMedic is easily adaptable to individual needs and provides a comprehensive solution for all aspects of operation management and execution. Core Features of ResQMedic 1. Modular Design: ResQMedic consists of three main modules t...
I'm in need of a comprehensive online tutoring platform specifically for College-level Key Features: - Video Conferencing: This is a crucial component for real-time interaction between the tutor and student. - Interactive Whiteboard: An essential tool for visual learning and problem-solving. - Assignment Submission: This feature will allow students to submit their work for review and feedback. Ideal Skills: - Proficiency in College - Experience in online tutoring - Knowledge in designing or utilizing an interactive online tutoring platform - Familiarity with features like video conferencing, interactive whiteboards, and online assignment submission I am looking for a freelancer who can assist in setting up this platform, with a strong understanding of college and online tutoring...
I'm video maker teacher and I would like have a website for study my training courses
I need a professional developer who can build a comprehensive computer vision app for Windows. This app will take in streaming video from an IP camera to track unique visitors. Key Features: - Movement Tracking: The app should be capable of detecting and tracking movements within the camera's range. - Face Recognition: The app should incorporate face recognition capabilities for identifying unique visitors. Ideal Skills and Experience: - Proficient in Windows application development. - Extensive experience with computer vision and face recognition technology. - Skilled in developing applications that interact with IP cameras. - Competent in implementing movement tracking features.
Program that scrapes soccer pre-match betting odds from 3 South African bookmakers and identifies surebets, using Python (Playwright and Numpy) Ideal Skills: - Proficient in web scraping technologies - Proficient in programming languages suitable for this task (Python)
I'm looking for an experienced developer who can create a AI web crawlers Key Requirements: -Vactor db knowledge (pinecone) -deep learning
I'm looking for a talented software developer who can create a comprehensive medical retail software for me. The software should encompass: - Inventory Management: Keep track of stock, manage orders and handle supplier interactions. - Customer Billing: Efficient and accurate billing processes. - Prescription Tracking: Monitor customer prescriptions and manage refills. The system will be standalone, so there is no need for integration with existing systems. Your expertise in creating software that is compatible with both Desktop (Windows/Mac) and Mobile (iOS/Android) platforms is crucial. Ideal candidates for this project should have: - Experience in software development, particularly for retail and/or medical purposes. - Proficiency in creating cross-platform applications. - Stron...
If you want to stay competitive in 2021, you need a high quality website. Learn how to hire the best possible web developer for your business fast.
Learn how to find and work with a top-rated Google Chrome Developer for your project today!
Learn how to find and work with a skilled Geolocation Developer for your project. Tips and tricks to ensure successful collaboration.