Online test automation jobs afghanistan jobs
...Responsibilities: -Develop a flyer that effectively introduces a new product and service to working professionals (engineers) -Create engaging visuals that can potentially provoke interest and stimulate market demand Specifications: One side of the flyer should be focused on this product: The other side should be focused on this service: Size: 5.5" x 8.5" (two-sided) Ideal Skills: -Proficiency in Adobe Suite or similar design software -Experience in creating marketing materials targeting working professionals -Knowledge of color theory and typography will be a plus -Understanding of the dynamics and preferences of
...professional to take charge of our daily email marketing campaigns. This project involves sending bulk emails for marketing purposes, with a focus on custom design. Key Responsibilities: - Plan and execute daily email campaigns - Develop custom email templates - Ensure high deliverability rates - Monitor and analyze campaign performance I need someone with a solid background in email marketing, automation tools, and a keen eye for design. Familiarity with the following tools is a plus: - Mailchimp - Constant Contact - Drip - HubSpot The ideal candidate should have proven experience in handling large-scale email marketing campaigns and be well-versed in email deliverability best practices. Your design skills will be crucial in creating visually appealing and engaging campaign ...
...backend source code to Plesk. This project involves transferring our existing backend codebase to our Plesk server, ensuring that all dependencies are properly configured and the application runs smoothly. Responsibilities: - Upload backend source code to Plesk server. - Configure server settings to ensure compatibility with the backend application. - Install necessary dependencies and libraries. - Test the application to ensure proper functionality post-upload. - Provide documentation or guidance on server maintenance and management. Requirements: - Proficiency in server management, particularly with Plesk. - Experience with backend development and deployment. - Strong understanding of server configurations and dependencies. - Attention to detail and ability to troubleshoot ...
...for documents that are incomplete • Verifying, correct, and delete unnecessary data, or combine data The requirements for the applicant include strong attention to details, college degree, access to email and knowledge of use a device (computer or phone), basic software tools (Microsoft Office - Word & Excel). We need fast, accurate and specialized members. It is mandatory to pass a short trial test / finish a task, that could last between 2-4 hours, with the possibility of extension to up to 1 week, if the candidate is involved in other projects, or not available to start immediately....
I'm in need of an experienced developer who can bring my vision of a cutting-edge online casino platform to life. Key Features: - The platform should offer a diverse selection of casino games to engage casual gamers, similar to popular platforms like Bet365 Casino and LeoVegas Casino. - I'm looking for a platform that can host a wide variety of games, such as slots, poker tables, blackjack, and others. Your responsibilities include: - Collaborating with me to understand and implement my vision. - Developing a user-friendly, responsive, and visually appealing platform. - Ensuring the platform is secure and operates seamlessly. The ideal candidate should have: - Prior experience in developing similar online casino platforms. - Strong proficiency in game developme...
...of the team, you'll play a vital role in ensuring the quality and functionality of our Groom app across web, Android, and iOS platforms. This is a fixed rate contract, not hourly. **Responsibilities:** * Collaborate with developers using tools like Clickup to understand upcoming features and functionalities for both customer requests and provider responses. * Design and execute comprehensive test plans for web, Android, and iOS versions of the Groom app, focusing on seamless integration with existing booking platforms. * Identify and report bugs across all platforms, including functionality, usability, and UI/UX issues, utilizing screenshots and screen recording tools. * Leverage Figma designs and other relevant assets to ensure visual fidelity across platforms. * Provid...
...implementation, query composition, and performance. The data is about texas hold em poker game The stages of the project are 1. Look at the details of the data 2. Come up with an ER diagram and a relational schema for the data 3. Create a database in any relational db and tables 4. Create a python script to read the txt files and populate the db 5. Test the queries 6. Populate the other(mongodb and neo4j) databases and test the queries Then test the queries below on the databases QUERIES 1. Separate players by their style of play/Group players with a similar style of play together. Do your best to answer this question using your Neo4j data model. 2. How often do players win in a particular position (relative to the dealer)? In other words, for each hand, consider ...
I need an experienced developer to create a custom payment wallet plugin for Woocommerce. I have a file from my previous developer and its showing my payment method in admin side but its not showing on checkout you have to fix that first so i can no that you'll also not waste my time. If you do it successfully and i test it i will award the project and we'll start main development work. I want to integrate my custom payment wallet within the WooCommerce system. This means I need to support all usual payment methods like credit card and PayPal, but also support my own wallet system. The ideal candidate should have: - Proficient experience in Woocommerce plugin development - Specifically worked on payment plugins in the past. - Familiarity with custom payment wallet sys...
I'm on the lookout for an individual who specializes in online polling to help me win a contest. Need your expertise to cast multiple votes over a period of time with an even distribution. I need over 15k votes and the poll closes Friday April 29th. The IP addresses should be within the United States if possible. Skills Required: - Knowledgeable in online polls system - Ability to organize and distribute votes evenly over time Experience: - Proven record in managing a similar initiative successfully. Please, only serious and dedicated individuals should apply. Looking forward to achieving this goal together!
I'm seeking a proficient Zapier expert who can develop a Zap that automates several tasks when a new PDF is added to my Google Drive folder. Key Requirements: - Flatten the PDF: The Zap should flatten the new PDF file upon detection. - Extract Each Page as .tiff File: After flattening, the PDF pages need to be extracted individually as .tiff files. - Email Notification: Notify me via email once the process is complete. It's essential that the successful candidate is well-versed in Zapier and PDF handling. Familiarity with API would be an added advantage, although not necessary as I do have an API key if it's needed. Your role will be pivotal in streamlining my workflow and ensuring efficient management of PDF files. If you possess the requisite skills and can deliver a r...
...knowledge of use a device (computer or phone), basic software tools (Microsoft Office - Word & Excel). We need fast, accurate and specialized members. It is mandatory to pass a short trial test / finish a task, that could last between 2-4 hours, with the possibility of extension to up to 1 week, if the candidate is involved in other projects, or not available to start immediately. Please note that the job duration is from 1 month to ongoing / undefined, between 10-30 hours per week (4-8 hours per day). Candidates will have to manage the related tasks, till completion. Therefore the listing should be online, for us to be able to review it. Payment, working hours & terms • Level I - Property Manager (inserting data): £18-£23 / hour* • Le...
I'm looking for a skilled developer to help me set up an API request that will send my product inventory levels from my Indica Online POS system to a Google Sheet. Key Project Details: - POS System: My store runs on Indica Online. This system has a robust API that allows for integration with other systems. - API Documentation: I do have access to the API documentation for Indica Online, so we can use that to ensure the data is pulled and sent correctly. - Information Transfer: The main focus is on transferring product inventory levels. This data is crucial for managing stock efficiently and ensuring accurate tracking of what's available in-store. Key Skills and Experience: - Proficiency in API integration, especially with POS systems. Familiarity with Indi...
Need a Windows program that logs into an account, allows the user to enter a 2FA code in a browser window, enters queries into a search from an input XLS file, and on output saves the search status for that query.
I am interested in finding a person or company who has experience in building dating websites. You must live in the US AND you must be able to produce websites that you have built in the past.
hi, i need some active freelancers having active email so they could help me to complete my project on time. You will be given pay acc to your work. Newbies are most welcome. Grab this opportunity to have a good experience and to learn. this task not take your much time its done quickly thank you
I need an experienced developer to create a custom payment wallet plugin for Woocommerce. I have a file from my previous developer and its showing my payment method in admin side but its not showing on checkout you have to fix that first so i can no that you'll also not waste my time. If you do it successfully and i test it i will award the project and we'll start main development work. I want to integrate my custom payment wallet within the WooCommerce system. This means I need to support all usual payment methods like credit card and PayPal, but also support my own wallet system. The ideal candidate should have: - Proficient experience in Woocommerce plugin development - Specifically worked on payment plugins in the past. - Familiarity with custom payment wallet sys...
I require a reliable and accurate freelancer to manage data entry for product details, customer information, and sales data into WooCommerce. The project comprises entering details for 100-500 products, alongside adding relevant PNG images for each one. Ideal Skills & Experience: • Proficiency in WooCommerce data handling • Experience in data entry ta...Experience in data entry tasks • Familiarity with PNG image formats • Attention to detail • Ability to deliver within deadlines Your workload will include: - Data entry of product details, customer information, sales data. - Uploading and associating PNG images for the respective products. This project requires a knack for detail and a demonstrated history of delivering meticulous data entry jobs. Kn...
...create a modern and sleek logo for my brand. The logo will be primarily utilized online across websites and social media platforms, so it needs to be visually appealing and easily recognizable in a digital environment. Key Requirements: - Experienced in logo design, particularly with a modern aesthetic - Strong understanding of online design principles, including how logos appear on digital platforms - Ability to create a visually striking and memorable logo that accurately represents my brand I'm looking for a designer with a strong portfolio of modern logos, particularly those that have been successfully used online. Your ability to deliver a logo that is both visually appealing and functional in an online environment is crucial. This is a great oppo...
...create a modern and sleek logo for my brand. The logo will be primarily utilized online across websites and social media platforms, so it needs to be visually appealing and easily recognizable in a digital environment. Key Requirements: - Experienced in logo design, particularly with a modern aesthetic - Strong understanding of online design principles, including how logos appear on digital platforms - Ability to create a visually striking and memorable logo that accurately represents my brand I'm looking for a designer with a strong portfolio of modern logos, particularly those that have been successfully used online. Your ability to deliver a logo that is both visually appealing and functional in an online environment is crucial. This is a great oppo...
I'm in need of an experienced PowerShell and Azure automation developer to help with a project that will primarily focus on scripting repetitive tasks and improving operational efficiency. This will involve working with Azure Active Directory as well as tasks inside Virtual Machines. Key Tasks: - Develop PowerShell scripts to automate repetitive operations within our Azure environment. - Integrate Azure Active Directory with our scripts to streamline user management and permissions. - Automate tasks inside Virtual Machines to improve operational efficiency. Ideal Skills and Experience: - Extensive experience with PowerShell scripting, particularly in an Azure environment. - A deep understanding of Azure Active Directory and working with it programmatically. - Previous expe...
I'm seeking an expert in LabView, Arduino programming, and their integration. Th...an expert in LabView, Arduino programming, and their integration. The aim of the project is to create a system for industrial automation and prototyping that includes: - Real-time data monitoring - Designing a user-friendly interface - Automation and integration of microcontrollers You should ideally hold substantial experience in LabView development and Arduino programming. Your experience should encompass integrating these platforms and implementing the features mentioned above. Knowledge in integrating various sensors into this type of system and achieving real-time data monitoring will be crucial to this project. Any previous work with industrial automation and prototyping ...
...that serves as an online store. This project involves connecting the website to various Zoho applications to ensure seamless operation and data management. Key Functionalities Required: - E-commerce Functionality: The site should allow users to browse products and services, add items to cart, and make secure online payments. - User Registration and Login: To facilitate a personalized experience for customers, the site must have a user registration and login system. - Multilingual Content Management: The website should be able to display content in both English and Spanish, making it accessible to a wider audience. Ideal Skills and Experience: - Proficiency in Zoho Integration: As the website needs to connect to Zoho Commerce, LandingPage, PageSense, and Marketing ...
As a personal project, I'm seeking a skilled professional to edit my existing 7-page CV down to a concise 4-page document. The ideal candidate will have a keen eye for detail and experience in CV editing, with a focus on personal profiles. Key Re...original CV. Ideal Skills and Experience: - Proven track record in CV editing, particularly for personal use. - Proficiency in designing professional and formal documents. - Excellent attention to detail and ability to maintain content quality while condensing information. I need only 4 perfect pages with professional words for IT and Cybersecurity terminologies. Please constraint on last 3 jobs. If you can provide me with cover page ? also help me in 7-9 good skills ? I need it ASAP tomorrow or after tomorrow? That’s ...
I am looking to get this done in two weeks. Please see the included specs and html wireframe layout before bidding. I need someone who is skilled in ASP.NET and experienced with mobile apps. I would rather have the app developed with cross-platform software but it will for now be used in iOS.
...seeking a proficient DevOps freelancer, well-equipped with Salt Stack's Automation capabilities, docker containerisation specifically for Linux operating systems. - Tasks required: Primarily, I need assistance with configuration management and deployment of standard WEB related software components to target systems using Salt as a delivery manager and docker for maintaining and managing software components. . Efficient implementation of these automated tasks is high priority. - Infrastructure: The SaltStack infrastructure is already in place, hence the focus will be on maximizing its utility rather than set-up. For a promising collaboration, the successful candidate should have hands-on experience in SaltStack automation specifically for Linux systems and sound...
I'm looking to create a unique and appealing vintage-style logo for my brand. This logo will primarily be used across various online platforms like websites and social media. I'm open to suggestions on specific colors to be used, so a good eye for color schemes would be an advantage. - Design a vintage-style logo - Suitable for online use - Open to suggestions on colors Ideal Skills and Experience: - Experience in vintage logo design - Understanding of online branding - Strong portfolio of previous designs - Ability to suggest and implement suitable color schemes
WARNING - Must Read Before Placing a Bid! I am in search of 10 marketing automation experts proficient in various platforms such as Marketo, , , Latenode, and GoHighLevel. Ideally, you should possess expertise in: - Email marketing automation, - Lead nurturing and scoring, - CRM integration, - Social Media Management Automation, - Content Creation Automation, - Customer Support Automation. The main target for our marketing automation efforts is a B2C (business-to-consumer) audience. Additionally, the candidate who demonstrates a solid understanding of automation tools and a knack for implementing effective strategies will also earn an equity share in the business. Must-Have Core Values Requirement: To be able to get this lucrative opp...
...to work on modifying the MicroSIP open-source VoIP application. The primary goal of this project is to change the visual identity of the software, including the user interface and branding elements. Responsibilities: Analyze and understand the existing MicroSIP codebase. Design and implement a new visual identity for the software, ensuring it aligns with our company’s branding guidelines. Test modifications thoroughly to ensure stability and functionality. Collaborate with our internal team to gather requirements and feedback. Provide documentation and support for the customized software. Requirements: Strong proficiency in Visual C++. Experience with software customization, particularly with open-source projects. Familiarity with VoIP technologies and SIP p...
Machine Learning Engineer (LLM, Prompt engineering) $12k – $80k • 0.5% – 3.0% in stock options Full job description (here is not full, because there is limitation on characters): We a tech startup based in Delaware, US. We are developing an AI-powered recruiting platform that analyzes and screens candidates' resumes, enabling recruiters to quickly identify top talent while significantly reducing manual screening time and bias. The WHO: Target Audience The main user of our platform is a professional who needs to streamline their recruitment process, particularly in the scope of CV screening and filtering. This allows them to improve the quality of hires and reduce time spent on manual screening. Our primary target customers include recruitment agencies
...details, college degree, access to email and knowledge of use a device (computer or phone), basic software tools (Microsoft Office - Word & Excel). Candidates should live in Europe (all European countries), North America (US or Canada) and / or South America (Argentina, Colombia, Paraguay, Uruguay or Mexico). We need fast, accurate and specialized members. It is mandatory to pass a short trial test / finish a task, that could last between 2-4 hours, with the possibility of extension to up to 1 week, if the candidate is involved in other projects, or not available to start immediately....
I'm seeking a skilled freelancer to design and implement a comprehensive social media management solution that seamlessly integrates with WhatsApp Business. The ideal platform will streamline multiple business processes and provide a unified communications hub. The goal is to reduce manual tasks and enhance customer engagement. Key Deliverables: Platform Selection and Setup: Assess suitable automation platforms to determine the best fit for my business needs. Configure the chosen system to manage all social media accounts and integrate fully with WhatsApp Business. Workflow Development: Create automated workflows to handle a variety of tasks, such as: Social media post scheduling across multiple platforms. Automatic responses, lead capture, and customer queries on WhatsApp ...
My goal for this project is to create an online store that sells video games, designed with a "boosting games" aesthetic. This should attract gamers and increase engagement on the site. This design aims to have visitors feel excited, ready to explore, and eager to purchase our offerings. Key elements to focus on include: - eCommerce functionality that is easy to navigate - A design aesthetic that is high-energy and vibrant, reflecting the rush of playing a new video game - Product listings, pricing details, and a secure checkout process The ideal freelancer for this job would have: - Prior experience in creating eCommerce sites, specifically for video games - A deep understanding of the gaming industry and its audience - The ability to bring my vision of a 'boosting...
...Your task will primarily focus on: 1. Real-Time Data Fetching: You will have to fetch live data from Fyers websocket and API, specifically: - Real-time stock prices - Order book data - Options chain - Indicators (RSI 20 & 50 MA VWAP) 2. Data Feed to Excel: After extraction, feed this real-time data to an Excel sheet. Proficiency in using APIs with Excel is paramount. 3. Trading Automation: Automate my trading executions. This will streamline my trading activities, minimizing time spent on manual tasks. In addition, a provision to manually place orders through Excel should also be catered for. Experience with automated trading, excel manipulation using Python, and a strong knowledge base of the Fyers platform will make you a perfect fit for this project. Lookin...
Trying to find a way to replace the money I used to pay my taxes within the next 30 days. Wife and myself have many health issues and while in retirement have come across few financial set backs. I might need to come out of retirement even though I do need to attend to my wife's needs.
...MacBook Pro Android Studio and will be done online with the Supervisor Manager attending to support the Freelancer developer. TeamViewer access will be given to the Freelance to work on the Remote Macbook. Remote Macbook is located at Melbourne/Australia (AEST time zone) Preferred Hours of work are 18:00-23:00, but we can discuss alternative times. Key Responsibilities: 1. Update Android SDK from compileSdkVersion/targetSdkVersion = 30 to 34 2. Update "react-native" if needed. 3. Update any Libs/SDK/Services if needed, to make it work, e.g. :play-services-maps. 4. Make sure using abiFilters "armeabi-v7a", "x86", "arm64-v8a", "x86_64" to support both 32 & 64Bits 5. Generate Debug and Release APK versions. 6. Supervisor Manage...
I need a skilled Excel specialist to handle the automation of tasks in my daily-updated Excel file. Key Responsibilities: - Develop basic macros to automate tasks: I need macros to simplify and speed up the daily operations in the Excel file. Ideal Skills and Experience: - Proficiency in Excel: You should be very familiar with Excel tools and functions, especially in the area of macro creation. - Experience in automation: Previous experience in automating tasks in Excel, especially on a daily basis, would be highly beneficial. - Detail-oriented: The tasks are basic but they need to be carried out consistently and accurately on a daily basis. - Time management: You should be able to create a system that keeps up with the daily updates. I am open to discussing more about...
I am looking for a meticulous freelancer who can extract both textual and numeric data from PDFs and images sourced online. Skills and Experience required: - Proficiency in performing web research - Acute attention to detail for accurate data extraction - Experience in handling both textual and numeric data - Expertise in data entry from PDFs or images Responsibilities: - Scout for relevant online sources - Extract and organize textual and numeric data from selected PDFs and images. This task requires precision, as the information needs to be accurate without room for error. If you have the necessary skills and experience, I'd love to hear from you.
I'm seeking a professional an...atmosphere & culture. Commissions are $250 - $750 per month extra Your day will include: 100+ outbound calls a day Emails to potential clients 2 appointments per day Must have - 9 out of 10 English written and spoken - Have or are willing to purchase an extended microphone headset, Computer with 4 GB of ram & a good webcam, Internet that is fast - On google, type in - internet speed test - take a free test to find out. -Quiet place to work at home without being interrupted. -Able to work 8 am to 4:30 pm MDT - Monday to Friday. -Excellent written and verbal communication skills. -Must obtain a high level of energy. -Must be willing to put in the extra hard work to get the result. -Familiarization with Google programs (sheets, d...
I'm looking for a sales professional who can reach out to our leads and convert them into registrations for our online school. The product we offer is the Full English National Curriculum to teenagers aged 11 - 18. It's crucial that the sales professional is fluent in English as they will be representing our school and handling potential students' inquiries. Ideal candidates for this position should have the following: - Proven track record in sales, particularly in an education-related field - Excellent communication and negotiation skills - Strong understanding of the education sector and the English curriculum - Experience in dealing with teenagers and their parents - Ability to work independently and meet targets - Proficiency in English The job is all about...
...management, Troubleshooting production issues and capacity planning. Create/manage sustainable systems and services through automation and uplifts. Balance feature development speed and reliability with well-defined service-level objectives Required skills and qualifications: Ability to program (structured and OOP) using one or more high-level languages, such as Python, Java, C/C++, Ruby, and JavaScript Experience in working with such as Amazon S3, Sagemaker, Amazon Bedrock Excellent knowledge working with cloud-native infrastructure, such as AWS Lambda, OpenShift Good understanding of API management and should be able to troubleshoot API related issues. Automation Mindset to manage cloud infrastructure using AWS CloudFormation/Terraform Impeccable creative and communic...
...developer to help with my Excel automation tasks and creating a set of macros. Key Requirements: Need to extract data from pdf in a way which I want - The primary task involves the automation of Excel processes. - The developer is expected to create macros that will streamline and simplify certain operations within the Excel sheets. - The primary automation requirement is extracting data from different types of PDF documents. Further Details: - The VBA developer should be able to extract data from text-based PDFs, scanned PDFs, and password-protected PDFs. - The extracted data needs to be accurately transferred to Excel. Ideal Skills: - Proficient in VBA and Excel; - Experience with data extraction from different types of PDFs; - Understanding of automation...
I'm on the hunt for an ...an exceptional sales person to generate leads and sell my online trading course. My course is designed specifically for beginners, making it an ideal starting point for those new to the realm of online trading. Key Responsibilities: - Find and engage potential clients - Showcase the simplicity and step-by-step learning format of my course - Highlight the use of up-to-date trading strategies in the course curriculum The course mainly consists of video lectures, making it easy for customers to learn at their own pace. Ideal Skills: - Experience in sales, preferably in the e-learning industry - Knowledge of online trading (big plus) - Solid lead generation capabilities - Great communicative skills. Let's introduce the world of ...
...The primary functionality that I need on the website is an online booking system. I would like the booking system to be integrated with a CRM software. Key elements of the project include: - Custom-built website: I am not looking for a WordPress or Shopify site, but a custom solution tailored to my business needs. - Online booking system: This is the core functionality of the website. Customers should be able to book and schedule their moving services online. - CRM software integration: The online booking system should be integrated with a CRM software, to help manage and track customer interactions and service requests. The ideal freelancer for this project should have experience in: - Custom website development - Creating online booking systems - ...
I'm in need of a skilled Chrome extension developer who can build a custom tool for my needs. The core functionality I'm seeking for this extension is browser automation. Specifically, this extension should be able to automate content interaction on the web pages. Here's the specific requirement: - The extension should enable adding comments to various web pages. Ideal skills for this project: - Experience in Chrome extension development - Understanding of browser automation - Knowledge in scripting interactive content functions Your task will be to develop, test, and deliver a functional Chrome extension according to the specifications provided. Given the nature of this project, problem-solving skills and good communication will be highly valued. You...
As the owner of a fashion-focused online store, I'm in search for a team of advertising experts. Key Goals: - Boost Sales: The primary goal of this project is to significantly increase our sales figures. The team should have a proven track record of driving sales for online fashion retailers. Key Points: - Target Audience: Our store is primarily aimed at young adults aged 18-34. The advertising strategies should be tailored to effectively reach and engage this demographic. - Platforms: I'm looking for experts who can advertise our website not only on Google Ads but also across various platforms. The team should be adept at multichannel advertising to maximize our reach. Skills and Experience Required: - Proficiency in Google Ads: The team should have a strong un...
I'm looking to develop a c...to develop a comprehensive online platform focused on freelance and part-time jobs, with an emphasis on writing and content production opportunities. The key features should include: - A robust search functionality allowing users to find jobs via keyword search and sorting system according to job type. Ideal skills for this project would include: - Expertise in website design and development - Previous experience in developing job platforms - Proficient in enabling keyword search and sorting functionalities - Knowledgeable about the freelance writing and content production industry. Your task will be to create a website that is simple to navigate for both job seekers and employers while also being a reliable source for quality ...
I'm in need of a skilled python developer to create a fully-automated program for me that operates on a Windows pl...specific post's link also provided. The engagement should include likes, comments, and shares, and there should be an option to track and verify these actions. Skill and Experience Requirements: - Excellent knowledge of Python programming - Familiarity with social media API, especially Facebook's API - Experience in developing automated tools on a Windows platform - Knowledge of web scraping and automation - Great problem-solving and debugging skills I expect the resultant tool to be user-friendly, efficient, and free from bugs or errors. As this task involves potentially sensitive information (Facebook login credentials), a commitment to privacy and ...
I require an expert in word document manipulation capable of upgrading a current document. The project involves: * Updating text fields based on a dropdown selection. * When a new selection is made, the system must be able to clear existing text automatically. * This action must impact all instances of a particular field within the document. Freelancers should be experienced in document automation and forms, capable of dealing with multiple instances and proficient with text field manipulation within Word documents. Familiarity with dropdown-based actions is essential.
