Prototype zendJobs

Vi har en prototype klar til hvordan appen skal se ud, den skal ikke være for kompliceret. En enkel og nem kode som vi også kan forstå som studerende. Vi har en beskrivelse af casen også, til hvad appen skal indeholde som vi kan sende. Det skal laves på android studio. Selve appen er en opskrift app, der skal bruges API til opskrifterne.

Jeg leder efter en freelancer, der kan hjælpe mig med at få udarbejdet en 3D model af en ide til et produkt, der gør det muligt at få udarbejdet en prototype af produktet. Der er tale om et produkt uden elektroniske komponenter og alene bestående af diverse bevægelige dele - fortrinsvis i plast eller anden letvægtsmateriale. Da ide og designet ønskes hemmeligholdt, vil det være en betingelse at freelancer er villig til at underskrive en fortrolighedserklæring samt kontrakt inden specifikationer fremsendes.

Vi har en programmør på projektet der er blevet syg. Vi har en næsten færdig prototype der dog mangler: At man kan skrive beskeder til hinanden. Integration med betalingsgateway Promoter/referral system At man kan søge efter et kursus eller event. Venneliste / favorites Chat funktion Forum Blog Rating funktion a la trustpilot Prototypen kører på .Net Mssql database, C# og lavet i Umbraco CMS. Giv et bud på færddiggørelse af projektet og også et bud på at lave hjemmesiden fra bunden af.

Efter foranalyser, konceptudvikling, brugerundersøgelser, proof of concept, kravspecifikation og en forretningsplan er OurNote nu klar til at få udviklet en prototype. Hertil søges en engageret programmør som både har evnerne til at danne sig det nødvendige overblik og til imødekomme den efterfølgende programmering. Kig forbi og kontakt mig, hvis projektet og opgaven har fanget din interesse.

Objectives The project in this semester is an interdisciplinary project. It combines distributed systems design, computer science and computer networks. PDA based flexible ticket system You are going to implement a prototype of a flexible ticket system. In its complete version it is going to replace the current RF-id tag based system. The new system expected lifetime is 5 year only. In 5 years it is expected that face recognition has advanced sufficiently to allow ticketing based entirely on automatic unattended image processing. While the proposed system only partly reduces the manual control, it will reduce the amount of sign in /sign out equipment on platforms and placing that equipment entirely in the rolling stock. Each train compartment or bus is already equipped...

Objectives The project in this semester is an interdisciplinary project. It combines distributed systems design, computer science and computer networks. PDA based flexible ticket system You are going to implement a prototype of a flexible ticket system. In its complete version it is going to replace the current RF-id tag based system. The new system expected lifetime is 5 year only. In 5 years it is expected that face recognition has advanced sufficiently to allow ticketing based entirely on automatic unattended image processing. While the proposed system only partly reduces the manual control, it will reduce the amount of sign in /sign out equipment on platforms and placing that equipment entirely in the rolling stock. Each train compartment or bus is already equipped...

jeg skal i starten bruge en prototype af en app kalender som kan synkroniser alle mest kalender typer Outlook, gmail og eks lotus note skal indgå er det muligt at få et system til at samle alle aftaler fra forskellige udbyder på en fælles kalender app ???

jeg skal i starten bruge en prototype af en app kalender som kan synkroniser alle mest kalender typer Outlook, gmail og eks lotus note skal indgå er det muligt at få et system til at samle alle aftaler fra forskellige udbyder på en fælles kalender app ???

Kun danskere. DANISH ONLY.rnrn Vi skal have udviklet et kundelogin hvor kunder kan se en række forskellig statistik trukket fra google analytics, adwords og andre api'er. Vi har lavet wireframes samt en god beskrivelse af opgaven. Vi har også lavet en prototype, som er skrevet i php/mysql og mvc-framework.rnrnDu skal have mulighed for at arbejde ofte fra vores kontor i København og vil blive en vigtig del af vore forretning. I første omgang vil jeg blot meget gerne høre fra dig.

Design af produkt emballage til kabler, USB oplader, rejseadapter, mv. Jeg søger en person, der kan bistå med udvilking af design af emballage til produktserie inden for tele tilbehør, fx iphone covers, mv. Det er kun emballagen der skal designes i et lækkert design, med et eksklusivt udtryk i stil med Apple. Hvid carton med mulighed for at hænger produkterne på væg i butikker. Eget eksempel på design udkast kan fremsendes. Mvh. Søren Larsen

I'm looking for a 3D designer to create a prototype for a concrete fencing panel that can be 3D printed. The panel will be 2000x500mm with a thickness between 30-40mm. The design will need to feature a simple and minimal 3D pattern on one side, with an aesthetic appeal, incorporating bolts, nuts, sprockets, etc., technical features prominently throughout. Key Requirements: - The design should be a continuous pattern, meaning that if two of the same panels are stacked together long edge to long edge, the pattern will continue seamlessly. - The design should be conceptually technical, showcasing bolts, nuts, sprockets, etc. - The pattern needs to be simple and minimal. Highly detailed patterns are not desired. - The panels will be used to create concrete from a GRP form, so the ...

I need assistance in creating CAD drawings of a product that my son has designed for a school project. He (and I) are not proficient with CAD. We have built prototypes and also have some basic drawings that we can share. We will require a series of drawings and two iterations. One of the existing prototype and one that includes ideas I have to improve the design. We will need to be able to 3D print the parts for the final prototype however I believe that the actual product will be made with injection/blow molding so we might also need to produce the negatives of the parts with 3D printing to allow for injection holding at the final stage. Would prefer to start the process with a telephone call to discuss. His product is an add-on to a widely available washing liquid bottl...

...Scope:** 1. Design UI/UX for **[specific number of pages, e.g., 8-10 pages]** of the application. 2. Create a fully responsive design for desktop, tablet, and mobile screens. 3. Ensure designs are consistent with modern design trends and branding guidelines. 4. Prepare a clickable prototype in Figma to showcase user flows and interactions. 5. Collaborate with our team to iterate on designs based on feedback. --- ### **Deliverables:** 1. **Figma File** with all screens and design elements. 2. Clickable prototype for user flow testing. 3. Design assets (icons, illustrations, etc.), if applicable. --- ### **Requirements:** 1. Proven experience with Figma (please share your portfolio or examples of past work). 2. Strong understanding of UI/UX design principles,...

I'm looking for a skilled UI designer to enhance the interface of my app. The primary goal is to give it a more contemporary look. The specific elements to be modernized include the navigation menu. Ideal Skills: - Proficient in UI/UX design - Experience with modern design trends - Strong understanding of navigation design Please provide examples of your previous UI design work, particularly any app interfaces you've modernized in the past.

...progress, compares them to peers or bio groups, and helps parents and coaches quickly get actionable insights. Key Features: - Tracking of various soccer and kinesiology metrics - User-friendly interface for coaches and parents Ideal Skills: - Figma Design - Web Development - Data Integration - User Interface Design Your deliverable: - Interactive, high-fidelity Figma, Sketch, or Adobe XD design prototype The data used by the web interface will come from our servers, but for now, I will provide an Excel file with all the parameters. Please include relevant examples of your work in your proposal. For this project, I will give the dataset to the selected designer. Please read the attached scope of work before sending your proposal. I will know if you have read it. Please includ...

I have developed a prototype of a voice conference platform using Node.js Express and LiveKit on a LiveKit server (free tier). The web app currently allows multiple participants to join voice conference calls successfully. However, I am encountering challenges with integrating Twilio dialing and LiveKit SIP for adding phone participants to the conference. I’m looking for a skilled developer with expertise in LiveKit and Twilio SIP integration to help troubleshoot and resolve this issue. Beyond this initial task, I am open to discussing a long-term partnership for future enhancements and features. Key Tasks: Analyze the current implementation of LiveKit and Twilio SIP integration. Identify the root cause of the failure when phone participants attempt to join. Implement a robu...

I'm seeking a skilled 3D printing professional to print a prototype of a brass keyring I'm designing. I will provide the 3D printable file. The keyring is medium-sized, approximately 2-3 inches. Key Details: - Finish: The keyring needs to be printed with an antique finish. - Size: It's a medium-sized keyring, so dimensions are roughly 2-3 inches. Please note that I need this delivered to Sydney, Australia. Experience in 3D printing, particularly with brass, is essential. A portfolio of previous similar work would be appreciated. attacehd is a sketch while I wait for the final 3d printable file.

I'm seeking a developer to create a prototype for a software platform offering tests for recuriting. This platform will primarily be used by standard users, with a focus on generating reporting features, specifically usage statistics. The prototype needs to encapsulate the following: - A robust reporting feature that can track and generate usage statistics - An intuitive interface for standard users Skills and Experience: - Proficient in software development and prototyping - Experience in creating user-friendly interfaces - Prior work with reporting features highly desirable

...processing and tools like FFmpeg. Knowledge of AI music composition using platforms like AIVA or MuseNet. Experience with lip-sync correction tools such as Wav2Lip. Ability to create automated workflows and custom scripts for video editing and synchronization. Project Scope: Budget: Please provide your estimate based on the above requirements. Timeline: Ideally, we would like to see a working prototype in [X weeks/months]. Additional Notes: We can provide video episodes and subtitle files of The Sopranos for testing. You should have access to the necessary tools for video editing and music composition, or be willing to work with available APIs and libraries. If you have experience in AI, NLP, video editing automation, and music generation, we’d love to hear from you!....

I'm seeking a freelancer who can produce a medium-sized (tabletop) prototype made of PLA plastic. The primary purpose of the prototype is for functional testing. Ideal Skills and Experience: - Proficiency in 3D modeling and printing - Experience with PLA plastic - Prior work producing prototypes for functional testing - Ability to create medium-sized, detailed tabletop prototypes

I'm looking for a skilled professional who can help create a prototype of a product called "Grooves". This prototype will be used for in-store demonstrations, so the ability to design for physical hardware is crucial. The project will involve: - Understanding and interpreting the concept of "Grooves" into a tangible product - Designing a prototype that can effectively demonstrate the product's functionality to in-store customers - Ensuring the prototype is robust and reliable for repeated demonstrations Ideal skills and experience for the job: - Extensive experience in physical hardware prototype development - Strong design and engineering skills - Previous experience with in-store product demonstrations is a plus - Abilit...

I'm looking for a talented 3D modeller to create the product model that I've dropped for me using Blender. The model needs to be of high detail with basic materials, suitable for prototype visualization. Also I need a tutorial how to model the photo that I drop. Key Requirements: - Proficiency in Blender for 3D modelling - Experience in product modelling - Ability to create medium-detail models with basic materials Ideal Skills: - 3D Modelling - Blender - Product Design

We're seeking an experienced mobile app developer to build a habit tracking application called "Don't Break The Chain" for both iOS and Android platforms. The ideal candidate should have experience with React Native and leveraging AI tools for efficient development. I've created a prototype using and it built it in React and next. This won't work for a mobile app unfortunately. But, I can share the code it gave me so you can replicate it and I also have created a video showing what it does. I want this done quickly, 2 weeks ideally. Here is the video: Required Skills & Experience: 3+ years of React Native development experience Proven track record of publishing apps to both Apple App Store and Google Play Store Experience

...**Third-Party Systems**: Allow integration with other enterprise systems (e.g., HR software, payroll systems). - **Payment Gateway**: Integration with payment platforms (e.g., Stripe, PayPal) for subscription processing. --- #### **5. Project Management** ##### **5.1 Timeline** - **Milestones**: Define milestones and timelines for development, testing, and system launch. - Milestone 1: Initial prototype and core feature set (4 weeks). - Milestone 2: Integration with time clocks and mobile app development (8 weeks). - Milestone 3: Vacation management and reporting features (12 weeks). - Milestone 4: Licensing system implementation (16 weeks). - Milestone 5: Final testing and deployment (20 weeks). ##### **5.2 Resource Planning** - **Development Team**: - Backend De...

I'm in need of a professional with expertise in technical drawing and 3D modeling for a mechanical part. This project is aimed at creating a detailed technical drawing and a 3D printable file for prototype testing.

I'm seeking a talented designer to create an animal themed card game with...card game with a cartoonish style of artwork for all ages. Key Requirements: - Expertise in creating engaging, cartoonish designs suitable for adults as well as kids. - Experience in designing card games, with a clear understanding of game mechanics and user experience. - Ability to design packaging that is visually appealing and fits the theme and style of the game. The project I have made a prototype of the card game as a rough idea. I would like the card to be quite minimalistic. I would like the design of the cards refined and improved with a more consistent theme between them and less childish. I would also like a rule book and packaging created to fit the theme. I've attached one of my c...

I'm in need of a designer who can create an STL file for a low-detail prototype part. The part is a spoon mechanism that fits into a bottle lid. Ideal skills and experience for the job: - Proficient in CAD software for 3D modeling. - Experienced in designing for 3D printing. - Understands mechanical design principles. Please note, the design does not need high detail, but it does need to be functional. I already have a stock design however it requires minor tweaking. The handle of the small spoon needs to be circular to fit inside the lid comfortably to be used to scoop out the materials. See attached photos The design will not require hollow sections, interlocking parts, or support structures. Your task is to create a suitable STL file for 3D printing.

I'm in need of a CAD Design for 3D printing expert to help me with my prototype. Requirements: - The prototype should be made out of plastic. - A low detail level is acceptable for this print. Ideal Skills: - Proficiency in CAD design for 3D printing. - Experience in creating prototypes for products. - Familiarity with working with plastic materials.

I'm in need of an experienced electronics engineer with a strong background in circuit design. The primary goal of this project is to design a circuit for a piece of industrial equipment focused on automation control. Ideal Skills: - Circuit Design - Industrial Equipment Knowledge - Automation Control Expertise Please note, the main focus of this project is circuit design. Experience with prototype development would be beneficial, but it's not the primary focus.

The candidate will be responsible for creating a comprehensive e-comm...walk-through and in detailed will be explained once you take up the project • return/refund/cancellation pop-up options • setting up delivery partners for tracking order • setting up delivery Payment gateway (Pay U or Phone pay) Note: 1)This project demands extensive brainstorming, open discussions & most importantly a strong willingness to take on the challenge and deliver results 2)Figma model/prototype is available but that is only for idea purpose and its not a response figma 3)3rd Party API: Delivery partner, SMS Packages, DLT Registration & Payment Gateway all are ready 4)Document is also available for reference, consider the document to be around 80% as rest 20% will be +or - durin...

...link to an Alternative Investment Page showing: Comparative analysis of returns via charts and pictorial representations. Data views pulled dynamically from Google Sheets. 3. Admin and Content Management: Easy-to-use interface for updating blog posts and client data. Integration with Google Sheets for seamless updates. Collaboration Requirements: UI/UX Design: Work collaboratively to prototype the entire app in Figma, ensuring smooth transitions and animations. Development: Build a scalable, responsive app accessible on both desktop and mobile. Deployment: Host the app on Google Cloud under a custom domain. Technical Skills: Frontend: React.js or for dynamic and responsive design. Backend: Node.js, Django, or Flask for secure login and data handling. Database: Fi...

I'm looking for a skilled designer/engineer to help bring to life a prototype for my innovative gym wrist strap. This isn't just any wrist strap; it's designed to assist with grip strength during intense workouts. The strap will consist of a standard full wrap around the wrist, connected to a long, leather, wrap-around grip that can be tightened around gym equipment, much like a slap bracelet. Key Features: - The strap is primarily aimed at providing assistance with grip strength during weightlifting. - It will be made from leather, so knowledge of this material's properties and how to work with it will be beneficial. - The design needs to be aesthetically appealing as this is a key requirement. I'm in the process of creating some sketch designs and AI con...

...intuitive interface prioritizing ease of use. Payment flow: Three taps max (select recipient → enter amount → confirm). QR code scanning: Accessible from the home screen. Wallet overview: Clear display of available balance and pending payouts. Link payments: Easy-to-use interface for generating and sending payment links via SMS, email, or social media. Timeline Phase 1 (4 weeks): Wireframes, prototype, and basic functionality (registration, payments, QR codes). Phase 2 (6 weeks): Full integration (CashApp, payment gateways), wallet functionality, and fee management. Phase 3 (4 weeks): Testing, debugging, and security enhancements. Phase 4 (2 weeks): Deployment and user onboarding. Budget Include an estimated budget range to attract qualified freelancers. Example: $10,...

...content like blogs or updates. • SEO-friendly design structure. 4. Mandatory Requirement: • Previous experience designing websites for technology and infrastructure companies is a must. Please share relevant examples from your portfolio. 5. Deliverables: • Figma, Adobe XD, or Sketch files for all pages and components. • Design guidelines including typography, colors, and button styles. • Prototype showcasing user interactions and page transitions. What We’ll Handle Internally: Our internal development team will handle coding and backend development. Your job is to deliver the design files with all necessary assets. Timeline: We need the designs delivered within 1-2 weeks. Budget: We are open to competitive quotes. Please share your best of...

We're seeking an experienced mobile app developer to build a habit tracking application called "Don't Break The Chain" for both iOS and Android platforms. The ideal candidate should have experience with React Native and leveraging AI tools for efficient development. I've created a prototype using and it built it in React and next. This won't work for a mobile app unfortunately. But, I can share the code it gave me so you can replicate it and I also have created a video showing what it does. I want this done quickly, 2 weeks ideally. Here is the video: Required Skills & Experience: 3+ years of React Native development experience Proven track record of publishing apps to both Apple App Store and Google Play Store Experience

...applications on the market, each of these has a focus and a target audience. The University of Guayaquil, in its desire to strengthen the relevance of its students, has considered the option of building the social network AlumniUG. The purpose is for it to be a tool that allows them to interact on topics of common interest to the entire university community. What is required: Design a web application (prototype) that meets the expectations of the UG, for which it has given free rein for the design and functional requirements of this, however, it is important to take into consideration that it is a social network for university students, and there are also certain parameters that must be met: • The system architecture is programming and consumption of microservices. • T...

I need a skilled professional to create a physical prototype of my product using wood. This prototype's primary purpose will be for functionality testing. Ideal Skills and Experience: - Expertise in woodworking and physical prototyping - Ability to create precise, functional prototypes - Experience in product development and functionality testing - Excellent attention to detail

I'm looking for a talented 3D designer to create a detailed and functional 3D aluminum design of a photography tripod head prototype for personal use . Key Requirements: - The design should be both functional and aesthetic. - Understanding of product design for consumer electronics is a plus. - Experience in 3D modelling is a must. - With the possibility to produce the model The ideal candidate should have a keen eye for detail, a solid understanding of mechanical design, and the ability to create visually appealing functional designs. Please provide examples of similar work you've done in the past.

I'm in need of a talented designer who can create a Figma prototype for our Payroll App. Key Features to Include: - Employee Management: An intuitive interface for HR and payroll teams to track and manage employee data. - Payment Processing: Seamless and secure payment transaction flows. - Tax Calculation: User-friendly displays and interactions for tax computations. Design Requirements: - The designer must adhere to our specific branding guidelines during the design process. Ideal Skills: - Proficiency in Figma is a must. - Experience in designing for Payroll Apps or similar is a strong plus. - Strong understanding and implementation capability of our branding guidelines. - Excellent UI/UX design skills to ensure a user-friendly interface.

I'm looking for an expert in power electronics to design a high-current sub-nanosecond pulser based on the provided reference schematics. To the right candidate (to be selected after preliminary interview) the ...divided into three stages: 1. Refining the provided reference schematics; simulation, reporting the reached performance 2. Layout/assembly design . At this stage the candidate should confirm the layout/assembly design with 3D simulation; access to the corresponding tool will be required, or remote access to licensed soft (CST MWS) will be provided by me. 3. (Optional; to be defined later) Prototype assembling and testing. Components which are rarely available off-the-shelf will be provided by me. Please contact me ONLY and ONLY if you have the relevant skills ...

I'm in need of an expert PCB designer who can help me design a PCB for prototype testing. I'm looking for a LED-array with high power Infrared-LEDS. approx 25 pieces on a plate 140 x 80 with even distance. We made good experienced with Osram SFH4725AS. We just need a simple array of LEDs - all should be switched on / off at the same time. To verify the design, we just need one or two prototypes. Will you also support with assembly of LEDs on PCBs? Key Requirements: - Inclusion of LEDs on the PCB - No specific communication interfaces needed (Bluetooth, Wi-Fi, USB not required) Ideal Skills: - Extensive experience in PCB design - Prior work on consumer electronics preferred - Knowledge of radio type device design a plus - LED integration experience desired I'm loo...

Prototype for AI-Based Disease Monitoring Using Social Media Data Project Overview: We are looking for a freelancer to develop a simple prototype for a project that monitors disease-related trends using social media data (e.g., Twitter). This is a proof-of-concept project intended to explore feasibility, and we plan to expand it into a larger project once we get confidance. The main goal is to extract and analyze basic trends using natural language processing (NLP) and machine learning, along with simple visualizations. --- Scope of Work: 1. Data Collection: Collect a small dataset of tweets or public health data using the Twitter API or any other publicly available source. Focus on disease-related keywords (e.g., “flu,” “dengue,” or “ou...

I'm looking for a skilled 3D renderer to help with prototype testing of a small commercial vehicle. Key Requirements: - Focus primarily on the vehicle's exterior design - Ability to work from rough ideas and develop them into detailed prototypes Ideal Skills: - Proficiency in 3D modelling software - Experience with vehicle design - Strong ability to interpret and develop rough ideas into detailed designs If you have a knack for vehicle exterior design and can assist with prototype testing, I would love to hear from you. Designer must know and understand local RTO regulations to keep final design in compliance P.S. looking only for NCR based Designers

I'm seeking a web designer/developer to create a minimalist, user-friendly website that funnels users towards subscribing for amenities services. Key Responsibilities: - Develop an engaging Figma prototype based on the provided branding elements (specifically colors and fonts) before moving to the actual C# site. - Ensure the site is designed in a clean, minimalist style. - Integrate the website with Google Auth, Email Auth, and Stripe for seamless user experience. Ideal Skills: - Proficiency in Figma and C#. - Experience in creating minimalist web designs. - Prior work integrating websites with Google Auth, Email Auth, and Stripe. The goal of the website is to promote subscription sign-ups above all else. A server with mock data will be provided for your use.

I'm looking to develop a base prototype for a video game that involves strategic movement of tops or caps. The game will be centered around grid-based movement, and the visual style will be a 3D low-poly aesthetic. Key Requirements: - Experience in game development, particularly with grid-based movement mechanics. - Proficiency in creating 3D low-poly visuals. - Understanding of strategic gameplay design. Ideal Skills: - Unity or Unreal Engine expertise. - 3D modeling skills, preferably with software like Blender. - Strong grasp of game mechanics and player engagement strategies. Freelancers with a portfolio of similar projects are highly encouraged to apply. I am looking for someone who can bring this unique concept to life with creativity and technical skill.

...the next level. This project focuses on forensics and enhancement, combining cutting-edge technology with a user-friendly design. While we have a functional Python prototype and a C/C++ foundation, our C version, with gui icons, is still very barebones, and we need your expertise to bring it to life with robust functionality! About the Project We're building a powerful video processing application aimed at professionals in forensics. Our goal is to create an intuitive yet feature-rich tool that combines real-time processing, plugin support, and advanced export options for a seamless user experience. What We Have ✅ A Python prototype with: Video playback and navigation Real-time filter previews Various video processing filters Basic export capabilities ✅ A C/C++ fou...

I'm looking for an expert in SketchUp who can assist with the final rendering of a 3D model for a product presentation. The ideal candidate should have substantial experience in creating interactive and animated elements within the rendering. Key Responsibilities: - Final rendering of a detailed product prototype - Incorporation of animations and interactive elements into the rendering Ideal Skills: - Proficiency in SketchUp - Experience in product prototype visualization - Skills in creating engaging animations and interactive features Please only apply if you can demonstrate relevant experience.

I'm in need of a prototype designer for an interactive learning app aimed at teens (13-18 years). The primary aim of the prototype is to attract potential investors. Key Responsibilities: - Design a prototype for an interactive learning app - Make the prototype investor-ready Ideal Skills: - Previous experience in designing educational app prototypes - Strong understanding of interactive learning principles - Excellent design skills - Prior experience with creating investor-ready prototypes Freelancers with a portfolio of similar projects will be given priority. Please include any relevant examples in your proposal.

I need an experienced 3D designer to create a detailed product prototype for 3D printing. The prototype will need to be functional, so the design must take this into account. Key Requirements: - Design a high-detail, textured product prototype - Ensure the prototype is functional Ideal Skills and Experience: - Proficient in 3D design software - Previous experience in creating product prototypes - Strong attention to detail and ability to create intricate designs - Understanding of functional prototype requirements - Experience with 3D printing technology and materials

...Experience with 3D modeling and simulation tools (e.g., SolidWorks, Autodesk). Ability to analyze and optimize efficiency and sustainability in EV designs. Strong communication and collaboration skills. Additional Information: This is a contract position, with potential for ongoing collaboration. Focus will be on optimizing the vehicle’s electric performance, efficiency, and durability before prototype production....