Create your own cool logo jobs

...days. Once they receive your license, (OJT) on the job training is provided. This is a work form home position. All clients interaction will be over the phone, on zoom calls, and your method of advertising. You will be paid for results and set your own hours. 
 Key Skills and Attributes Required: - Impressive Self-Motivation - Excellent Time Management - Outstanding Communication - Adaptability - Organization - Networking - Self-Discipline - Problem-Solving - Positive Attitude - Lead generation - Appointment setting - Persuasion and Negotiation - Familiarity with IUL and insurance industry. We will train you on IUL’s and all products. 
You will have 2 rolls in the company

. #1 Customer Acquisition Specialist. 
This position with require you to gen...

I have Excel sheet in the are all products added with all the categ...will add that specific category and you have to take out the data from sheet and create the image in Photoshop. I will also give you product images with it's specific name. You have to only remove background and add text and image according to the data. The person must have latest Photoshop and have to create one sample image. You have to leave the space also for the main video and have to choose a shape or space according to the data Here are the links to sample: My budget is Rs.50 per image. There are 10-11 images which you have to create and I need it by today. This will be regular work per week to create 10-15 images.

...graphic designer to create an eye-catching 88 x 200cm pull-up banner, primarily for branding purposes. The banner will be used at a tradeshow, thus should adequately represent and grab the attention of passers-by. Key Requirements: -Company logo and product images must be incorporated into the design. -Ensure the design speaks to the caliber of our brand and products. -Preference will be given to those with a strong background in branding and tradeshow graphics. -I'm open to suggestions for a main message or slogan on the banner. Ideal Skills: -Creativity and innovation -Demonstrated graphic design experience -Expertise in designing for tradeshows -Proficiency in Adobe Suite Please don't hesitate if you have any questions regarding this project. I look forwa...

I have purchased a template with 5 different demo home pages and I'm in n...consolidated home page will serve as a comprehensive template that I can later edit and populate with my own content. Key Tasks: - Reviewing the 5 different demo home pages - Extracting all the elements from these pages - Implementing these elements into a single new home page These elements would include (but not limited to): - Header - Hero section - Features section I'm looking for a freelancer with: - Prior experience with template customization - Proficiency in frontend development - Good experience with HTML/CSS - Eye for good design and aesthetics Communication during the project will be through the freelancer messaging tool. Please provide details of your experience with similar...

...developer to work on this project include: – Has their own computer and high-speed Internet connection. – Speaks, Reads, and Writes English well. – Can work from home without distractions. – Can use video conferencing - The ideal candidate should have a proven track record in successfully implementing security measures throughout database migration. - Experience with Firebase and Cloud Firestore is paramount, as the smooth transition with zero downtime is critical in this project. - Knowledge of optimizing database structure for better querying and scalability This project needs a dedicated professional who can reliably deliver this migration without compromising the security of the data it holds and the overall operation. Please start your prop...

Must be a Smart person with great communication skills over phone. Must be good with computers. Should be able to think and handle the work on their own without too much supervision. Experience with a home renovation/ Construction company will be a plus. Work includes Attend incoming calls, send welcome message Setup meetings Send the price estimates Follow up with customers after giving price Research on various topics as needed Other admin work as needed Working on Eastern Standard Time (New York, Toronto) Paid monthly up to $300 per month plus $50 bonus for each deal closed. Start ASAP

...system we use to schedule clients). The ideal person for this role is someone who understands the importance of treating each interaction like they're on the phone with their grandmother. You take the time to explain things, ensure the customer understands our policies and helps resolve any issues as if it is a pleasure to do so. In short, we want someone who will treat this job as if it's their own company. Every interaction is important. In return for excellent customer service, unwavering team support and a servants heart, you will be rewarded with great pay, increasing workload (and hours), and ideally, if things go well, we would like to see this develop into a role overseeing the entire company. So what is most important to this role? Answering/return...

I'm looking for skilled professionals to help me take my Stripe integration to the next level on my website. Key Tasks: - Add new functionalities to enhance the abilities of our current payment system - Implement subscription-based services using Stripe's tools Ideal Candidate: - Must have proven experience in en...enhance the abilities of our current payment system - Implement subscription-based services using Stripe's tools Ideal Candidate: - Must have proven experience in enhancing Stripe integrations - A solid background in creating subscription-based services - A keen understanding of the technicalities of Stripe's tools and features. Your expert assistance will greatly boost the functionality and convenience of our platform's payment process....

I'm in need of an expert who can create a few data entry forms for my project, specifically less than 10 forms. In addition, I require scheduling and shipping reports delivered in an interactive web page format. Requirements: - Data Entry Forms: I need less than 10 forms created for my project. They should be clear, easy to understand, and user-friendly. - Scheduling and Shipping Reports: I need these turned into interactive web pages. This means the data should be presented in a dynamic and visually appealing manner. Ideal Skills: - Experience in creating data entry forms - Proficiency in designing interactive web pages - Strong understanding of scheduling and shipping logistics Please ensure that you have the capacity to deliver on time, as I have a tight schedule.

Note my budget not more 20$ for the whole project Development / design web app based on chatgpt...can facilitate discussions among users, analyze their ideas, and ultimately make decisions based on the collective input and its own analysis, integrating the insights gained from ChatGPT. It offers flexibility for different types of interactions and decision-making processes. Requirements 1: design landing page that explain the concept 2: registration signing Signup 3: create the topic by users ( choice if public topics or private ideas ) 4: Set countdown timer 5: chatgpt API integration or any other free APIs 6: system based on chatgpt API after countdown end choice the idea based on chatgpt API ( by prompt that provided) choice the best idea or take his own dec...

...Highlight any current promotions, sales or discounts on Gleara. The end goal of these videos are as follows: 30-second videos (5 Videos) Product Name: Gleara Product website: Your own model, camera, scripts (approved by me) , post and pre-production, editing Imagine a series of 30-second videos that pack a punch of humor, boldness, and shareability. Each video will be a standalone gem designed to tickle the funny bone and leave viewers craving for more. With unique concepts, witty scripts, and impeccable direction, our goal is to make these videos go viral and create a buzz in the digital world. Ideal skills and experience: A freelancer with experience in creating engaging product advertisement videos, excellent videography and post-production skills, a keen ...

Hi, Im looking for someone who helps me with my project. white label website with integrated Trading...TradingView libraries. We can break down the portal into different parts connected. 1 – SuperAdmin, For the owner that can overlook everything in the system (me) 2 - Admin will be the “shop owner” they can edit/add/remove products, and sell them (integrations) Admin can be a brand that will be editable and have its own logo and domain login with branding. 3 - User who log in to the “shop” and can purchase products 4 – Trading portal – Connecting Libraries from Tradingview with our own (redistributed by Admin) 5- Integrations – Possibility to add telegram/discord/chat between users / FB messenger/video presentation/YT -...

I'm on the hunt for male actors, ready to feature in a half-day video shoot, set in an office environment for our networking company. The final product will brighten up our website. ...to feature in a half-day video shoot, set in an office environment for our networking company. The final product will brighten up our website. The Details: - You will portray the role of company employees in an office setting. - Displaying emotional expressions as office workers Ideal Skills: - Office smart clothing required - company t shirts will be provided. - your own laptop for the acting role (Role is typing on your keyboard in office background setting) - Experience in corporate/office roles is a bonus. - Ability to follow direction and adhere to the script. 14th May 1p...

We are looking for an experienced Python Django developer to create a travel web application using PostgreSQL as the data storage solution. The project involves building features for documenting, sharing, and planning travel experiences. To ensure efficient development, the project is broken down into iterations, starting with an MVP and gradually adding more features. Below is the detailed description of the required work: ### Project Overview The web application will allow users to document their travels, share them with friends or the public, and plan future journeys using curated recommendations. ### Responsibilities The most important part is "Iteration 1: Minimum Viable Product (MVP)", this will be used to test the market. Other iterations will be worked on as th...

...flyer for Farmers Market Vendors using the following text. Be sure to add pictures and graphics. Logo is also attached- you can change the color of the logo to match your design. You can change the fonts and size of the fonts to accommodate size of the flyer and importance of the information. You must actually submit a completed flyer with the text, blank templates will be rejected. __________________________________________________________ Join the "Made in NC" Farm Stand & Country Store! Celebrate North Carolina craftsmanship by showcasing your products at the grand opening of our exclusive "Made in NC" Farm Stand and Country Store on July 7th! Limited vendor space is available, so secure your spot today. Why Join MINCA?...

We are looking for a “Senior QA Specialist” having +7 years of development experience, or with 4+ years of QA experience, to join our distributed team, who designs & codes complex web & mobile applications. You will be in charge of having healthy product releases which do work without problems. Type -no mistakes- in your bid so we know you have actually read this description. You will be responsible for: - Overall quality of all project deliverables and prerelease versions, making sure they are problem free. - Planing, creating, executing tests to identify problems in the product. - Recording and analysing bugs and errors found during tests. - Tracking fixes of found issues. - Processing and replying to issue reports coming from Client and Users. You...

Some charts I'm trading get rugged by some scammers that mint new tokens and sell them in the same block using a jito bundle. I need a solution that given a target token CA, to whenever new mints of that token are detected, before they even get confirmed as the dump happen in the same block to place a jito bundle of my own with a higher tip to liquidate my position before the ruggers transactions.

As the client, I'm needing a proficient, detail-oriented developer to assist with the creation of a Custom Post Type (CPT) on my website. The purpose of the CPT is to organize and structure the website's content more effectively. The project will require: - Creation of a new CPT to enhance the website's functionality and structure. - Configuring undefined fields in the Advanced Custom Fields (ACF). This task would ideally suit a developer with experience in content organization, CPT, and ACF fields configuration. Please note: specific details on ACF field configuration and CPT display preferences have not been defined by the client. Potential candidates should be prepared to offer their professional advice in these areas.

Project Budget: $150 Project Deadline: Within one day Project Type: Custom WordPress Plugin Project Overview: Custom WordPress plugin required to allow a user to view data from a database table in a user friendly way. PHP Version: 8.2 and above Number of Shortcodes: 1 (we will be inserting the shortc...- Use shortcode attributes on the page/post to quickly retrieve matching records from the database table - If there are matching records display the data in a clean in-post widget - If the request returns NO data, hide the in-post widget - Store IP of all user click in an existing db table Design Requirements - Front end should be mobile optimised & responsive - All elements should have their own unique css class - The design should be clean - Pagination 5* FEEDBACK WILL B...

I am seeking a talented designer with expertise in creating modern, minimalist logo designs. Here's what I'm envisioning: - A logo that embodies a modern and minimalist aesthetic - Cool tones should be utilized primarily, specifically blues, greens, and purples To be a strong fit for this project, you should have experience with minimalist logo design and a demonstrated ability to utilize cool color palettes. Please include examples of your previous work that showcase these skills when you apply. Let's create something memorable together!

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Add moving watermark or seal entry 5. Upload final work as .mp4 Dice:

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Add moving watermark or seal entry 5. Upload final work as .mp4 Dice:

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Add moving watermark or seal entry 5. Upload final work as .mp4 Dice:

I am looking for a designer who can create a modern logo for my real estate business. This logo will represent my brand on Instagram and my website. The logo should incorporate elements that embody the exciting Miami landscape such as buildings, keys, and houses. An understanding of Miami's unique architectural style will be helpful. The color preference is predominantly blue, with accents of pink to mirror the iconic Miami Vice palette. Skills and Experience: • Extensive logo design experience • Experience in modern design • Knowledge of Miami's architectural and cultural style • Proficient in using blue and pink in design work Consider crafting a logo design that efficiently communicates the local flavor of Miam...

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Add moving watermark or seal entry 5. Upload final work as .mp4 Dice:

I require a freelancer experienced in course creation and content aggregation. I have less than ten PDFs that must be transformed into an engaging, interm...and format the material into a PDF and 5 PPT based on chapter. - The Project Scope: 1. Convert the provided PDFs into a consolidated PDF with just the required information from the specific pages of information provided. 2. Create a series of 5 PPTs to represent each chapter of the course. Your expertise in the field will help in creating a course for adult learners. You will be relied upon to transform the content of the static PDFs to help assist in the creation of the new course. This job needs to be completed no later than Friday, April 12th. All materials to create the course and the outline of the topics ...

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Add moving watermark or seal entry 5. Upload final work as .mp4 Dice:

Hi Rabia Shaikh, I noticed your profile and would like to offer you my project. We can discuss any details over chat.

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Try to seal Entries so nobody can see your work, add moving watermark ...

Instructions: 1. Create Video Card a) Change your video editing software Resolution settings to 576x896 before you start b) You may chop up the video, reverse it, loop it, or my favorite thing to do: Let it play, duplicate it, reverse the duplicate, so the video is double the length. c) Ask CHAT#$% for a list of scary/demonic/terrifying/spooky/weird names, try a few different names 2. Animate the writing and Dice.... if you think it looks good, possibly add cool effects/Ai tools/Ai animation/Video enhancement. Do whatever you think is best 3. Add sound (****Please use ONLY 100% Vector copyright free sounds and FX (full commercial use only)(No Attribution required) (Same with the Ai) 4. Try to seal Entries so nobody can see your work 5. Upload final work a...

I need an attorney to create legal documents such as privacy policy, terms of use, and more if necessary for a dating app like Tinder. I am trying to launch in the US. The project is for business use, and please show me previous works working with privacy policies, terms of use, and more if you have done these before. You can benchmark documents that are doing similar service as my app (ie Tinder), but since our app has different capacities and functionalities, you might have to know how my app works to write comprehensive documents, I want this to be done ASAP.

hello who can create a website for me as( zipmend . com ) please do not make a copy but should be exactly like that the system and please look closely at the website and only offer people where it also mean first and can also do all this in german . And I don't want to act. I just want to set a fixed price

Full Karalina clothes store website creating - develop, design, administration, domain, structure.

You must be a internet Research Expert. You ...easy-to-read and understand format. Please note: I'll only consider bids from freelancers who demonstrate they've fully understood the project and can deliver as per my requirements. I will own the copyrights to all research performed for me. You will provide links to the data and proof that your work is correct so I can check all your work. You will send me completed research word document when completed. I will release the full milestone when the work is completed, checked, and accepted by me. I do not pay any milestones until the work is completed, all files delivered, checked, and accepted by me. If your work is High Quality and exactly what I need I would be interested in considering you for Future ...

I'm looking for a unique logo for my AI SAAS business. It is an AI Chatbot that answers questions, so i want an ai/head type image but a question mark incorporated like attached image. The style I have in mind is futuristic and innovative. The color scheme should be based on cool tones, primarily blues and whites, to align with the nature of my SaaS company. Ideal skills and experience: - Professional logo designer with experience in creating impactful, futuristic designs - Proficient in using cool color palettes, specifically blues and whites - Understanding of modern SaaS and AI industry trends - Strong portfolio showcasing previous work in similar styles

I am looking to find a skilled designer to create an authentic and appealing logo for a Marketing Agency located in Saudi Arabia "Media Dar" Which means "House of Media" and its written in Arabic "ميديا دار". I don't have a particular color scheme in mind, so I'm opening up the canvas to your creativity, be it warm, cool, or neutral colors. Key Requirements: - Unique, creative design - Must be specifically for a Media/Marketing services. When applying, kindly ensure to include your past work, and experience. While I don't necessarily have a fixed idea for my logo, I would love to see your original ideas based on the marketing agency name and concept. If you have a detailed project proposal you ...

Proofreading and editing of 7+ thousand words. I can pay up to $70 - $90 with some bonus for great work. Be available for a short test Please answer the following questions in your bid: => What is your recent academic qualification? => Have you every published your own research article in any Scopus indexed journal? This is a fixed budget project - not an hourly paid gig

I am seeking to develop an image editing and creation tool that provides a good balance of features for both professionals and beginners like me. The tool should support: - Basic editing functions such as crop, rotate, and resize. - Filters and effects to adjust brightness, contrast, saturation, and more. - A v...Photoshop’s functionality, although I am flexible and open to suggestions on this regard. The ideal candidate for this task would be someone with experience in software development, particularly in the field of graphic software, who can respect the balance between simplicity and professional capacity in the tool’s design. Your understanding of Photoshop would be an asset. Looking forward to your proposals! I would like to create the Vibes image...

I'm in the market for a Photoshop savant who can create a new image based on the example I'll provide.

Hello Need to create labels for my products, the design is already set just need to make new languages. See file attached,

I have ongoing work related to our previous project 'Create a React clone of page shown, with all animations'

I'm seeking a detail-focused freelancer, ideally with proven experience in file transformation. The task is to convert every page of a PDF document into separate JPG files, all visuals must be at 300 DPI resolution. Key Requirements: - Convert each page in the PDF into its own high-resolution JPG file - Maintain a constant resolution of 300 DPI for all pages - Ensure the original quality and layout of the PDF is retained in the JPG output Skills and Experience: - Experience with file conversions - Attention to detail - Ability to maintain high image quality during conversions - Fluency in English for effective communication Success in this role will be measured by the quality of the converted JPG images and adherence to the project requirements. The ideal freelancer will b...

...you understand our requirements and that you work in a solution-oriented manner and with us in mind. Here you have a first description. This is how I made the advertisement: We are a brokerage platform. We refer customers to suitable workshops and need a solution in Salesforce for our lead management. 1. the customer makes an inquiry via our website (I could do this via WordPress by my own) 2. we check the request in an “admin area” and distribute the anonymized lead the anonymized lead manually to 3 partner workshops. 3. the partner workshops can view the leads in their “workshop area” and either reject them or submit an offer (price (price, check some checkboxes and fill in a text field) 4. the end customer receives an email with the offer...

...detailed list of the services offered by the agency, including • in-home care • personal care • companionship • meal preparation • medication management, etc. Each service should have its own dedicated page with descriptions. 3. About Us: Information about the homecare agency, including its history, mission, and values. 4. Client Portal: If applicable, a secure client portal where clients can log in to access important information, schedule appointments, communicate with caregivers, etc. 5. Testimonials: Real testimonials from satisfied clients or their families can build trust and credibility for your homecare agency. Consider including photos and/or videos if possible. 6. Contact Information: Clear contact information, including phone number, e...

I'm in need of a well-versed and experienced app designer and developer to create a cross-platform listing app. The goal of this app is to provide a versatile and user-friendly platform for users on both iOS and Android devices. Key Features: - User Registration and Login: The app must have a robust and secure system that allows users to create accounts and log in. - Search and Filter Functionality: The app must support easy searching and filtering of listings to help users find what they're looking for efficiently. - Listing Creation and Management: Users should be able to effortlessly create and manage their own listings within the app. The ideal candidate will have: - Prior experience in developing cross-platform apps. - Proficiency in creating u...

Our website is A brand new website where users can freely upload their own selfies, and others can rate and share them, similar to hotornot many years ago. The style of our website is black and white, because black and white often looks more elegant. We now want to promote on social media and drive some traffic to our website to test whether the market is viable.

I'm looking for an expert in 3D animation who can provide a uniquely abstract, visually stunning logo animation. Here's a rundown of how I envision this project: - Style: The animation should be abstract, pushing creative boundaries while maintaining a professional image. - Color Scheme: The design should predominantly feature cool colors, specifically shades of blue, green, and purple, to align with our brand identity. The design needs to utilise the brand colours of the brand which are blue and white. There needs to be a smoke or ink like effect which plays on the brand elements of chemistry and alchemy. A full styleguide will be provided. The animation will be used on the clients website and also as a top and tail element on videos. As a kind of reference...

I'm seeking for a talented graphic designer who specializes in creating simple, minimalist designs. The task will involve designing a water beverage label with a color scheme predominantly featuring turquoise and blue. The successful applicant should be able to intuitively incorporate...intuitively incorporate water droplets into the artwork, preserving the minimalist style. The flavors of the beverage should be reflected as a b&w one line drawn picture (examples provided in the description) Skills and experiences required include: - Proven experience in minimalist graphic design - An eye for color matching (especially familiarity with cool tones) - Creative ideas for featuring water droplets in the design. Let's create a water bottle label that looks as ref...

I'm looking for a professional house cleaner to take care of my living room, kitchen, and bathroom. These areas tend to accumulate dust and grime, and I can't always keep up with it. The cleaning service will be required monthly, so I need someone who can deliver a thorough and efficient c...living room, kitchen, and bathroom - Sweeping and mopping floors - Cleaning the kitchen sink, countertops, and stovetop - Scrubbing the bathroom sink, toilet, and shower/bathtub - Disposing of trash and recycling Qualifications: - Proven experience in house cleaning - Attention to detail - Reliable and punctual - Respectful of privacy and belongings - Good time management skills - Ability to bring own cleaning supplies Please reach out if you meet the criteria and can take this task...

I am looking for a freelancer to set up the layout for my edirectory website. Layout Preferences: - I...freelancer to set up the layout for my edirectory website. Layout Preferences: - I prefer a professional and elegant layout design. Color Scheme: - Although I don't have specific colors in mind, I would prefer cool/warm tones for the website. Reference Websites: - I have reference sites that I would like the freelancer to take inspiration from. Ideal Skills and Experience: - Experience in web design and layout setup - Proficiency in HTML, CSS, and other relevant programming languages - Creativity in designing a professional and elegant layout - Ability to incorporate cool/warm tones into the color scheme - Understanding of user experience and usability princi...