Bluetooth proximity advertising systempekerjaan

I am in need of a highly skilled freelancer who can revamp my Point of Sale (POS) system while keeping the same functions. Key Elements: - POS system should be SaaS-based, focusing particularly on the invoicing part. - It needs to incorporate efficient inventory management, salient sales reporting, and effective employee management. Desired Programming Language: - The SaaS-based invoicing part should be developed in Laravel. Invoicing Capabilities: - The system must include invoice customization features. Skills and Experience: - Experience in Laravel is a must. - Proven record in SaaS-based system development. - Prior projects related to POS system development will be preferred. - Knowledge of invoice customization. - Strong understanding of invento...

...developer to create and integrate a shopping cart system into my existing custom-built website. This will endow my site with robust eCommerce capabilities and enhance its functionality. Skills and Experience: - Mastery of PHP as the site is primarily developed with this programming language. - Proven experience with eCommerce and integrating shopping carts into existing systems. The following functionalities will need to be part of the shopping cart system: - Stock management: The shopping cart should accurately reflect and update items in stock. - Shipping: The system should offer various shipping options for customers to select from during checkout. Your deliverable will be a fully functional, well-integrated, and tested shopping cart system. Please shar...

I need a skilled designer, highly experienced in graphic design and website development. The candidate will be responsible for creating promotional materials for an e-commerce oriented project. Ideal applicants should have a strong portfolio showcasing their past work in a similar field, including but not limited to product promotion, digital advertising, visual representation of data, and brand development. Here are the key skills that will be beneficial: - Proficiency in graphic design tools like Adobe Illustrator or CorelDraw. - Web development expertise especially related to e-commerce. - Creative mind and problem-solving skills. - Experience with design and formatting of promotional materials. Please include your past work in your application to support your qualifications an...

Business Advertising Management to increase sales. Facebook and Instagram advertising services Google AdWords services Pinterest advertising services Conversion tracking setup

...Assistant who is not only adept at managing content and advertising on Facebook, Instagram, and Pinterest, but also has a solid background in bookkeeping. Key Responsibilities: • Social Media Management: You'll be responsible for managing both content and advertising on our Facebook, Instagram, and Pinterest platforms. Experience in creating engaging content and running successful ad campaigns across these platforms is a must. • Accounting: Your tasks will also include managing our books. Prior experience in bookkeeping and familiarity with popular accounting software is highly preferred. Ideal Skills and Experience: • Familiarity with Facebook, Instagram, and Pinterest • Experience in social media content creation and advertising &bul...

I'm on the l...experienced Java developer with specialized skills in crafting material handling systems. The developer should ideally have: - Expertise in three chief domains: Inventory Management, Order Tracking, and Warehouse Optimization. These are integral features that I look forward to having in the system. - Good understanding and experience of integrating newly developed systems with existing ones. In this case, the material handling system needs to be flawlessly integrated with a Supply Chain Management (SCM) system already in use in my establishment. Your knowledge in SCM systems will further bolster your chances of being successful in this project. Only bid if you're confident about meeting the mentioned requirements with a high degree of pro...

Seeking a skilled Amazon advertising expert to help bolster sales for our clothing range. Our primary objective is to increase sales and capture the attention of a young demographic ranging from 18 to 25 years old. Key Responsibilities: - Develop and implement successful advertising strategies - Pinpoint and target our young adult audience with precision Ideal Candidate: - Proficient in Amazon advertising - Experience with clothing categories, especially young adult fashion - Proven track record of boosting sales - Expert understanding of the young adult shopping behaviors This project offers a comprehensive foray into the fast-paced world of online fashion retail. I'm excited to see what we can achieve together.

I'm in need of a seasoned WordPress professional with a deep understanding of WooCommerce to enhance my site. You'll be tasked with incorporating specific shipping applications to my website including: - Calculating shipping costs with specific conditions and rules - Combine shipping costs for multiple items International shipping will not be necessary for now, so that expertise isn't required. Experience with WooCommerce shipping features is vital. The more experience you have in this domain, the better. But what's equally important is your resourcefulness and commitment to fine-tuning the user experience on my site.

In order to keep our business operationally efficient and consistently on track, we're seeking an individual with a strong analytical aptitude and a flair for data visualization. Your responsibility will involve: - Revamping our financial reports and system statuses - Adding additional data fields to both reports - Updating bar and pie chart visualizations with the new data fields We are excited to see a fresh perspective and a more organized representation of our financial status and systems. The ideal freelancer should have significant experience in financial data analysis, report generation, and creative visualization of data using bar and pie charts.

Producing projects suitable for brand identity and visuals, - Working on main topics such as brand identity, advertising campaigns, packaging design, - Creating visual elements to be used in content production, - Directing production processes in graphic design, illustration, photography and other visual media fields,

... client reviews and ratings, and details about their law firm including its size and rating. - Search Functionality - The platform should incorporate advanced search functionality, permitting users to perform keyword searches based on practice areas, filter attorneys by location, sort according to ratings or reviews, and consider law firm ratings. - Advertisement Platform - A built-in advertising platform for attorneys to promote their services effectively. - AI-Powered Bot - Implement an AI-powered bot to recommend attorneys to users based on their specific problems. The ideal team for this job would have significant experience with cutting-edge AI technologies, fantastic UX/UI design skills, a working knowledge of legal compliance for such platform and have prior ex...

As an entrepreneur looking to maximize the full potential of my business, I am in search of a knowledgeable and experienced digital marketer who can proficiently handle both Facebook and Google advertising platforms. Your primary focus will be on: - Targeting a specific age group demographic. - Leveraging geographic location insights for ad placement. - Engaging users with particular interests that align with my business. I have three main goals for this campaign: - Firstly, to effectively see an increase in website traffic to mold a solid online presence. - Secondly, to successfully generate valuable leads to foster business growth. - Lastly, to wisely enhance my brand's awareness and visibility within my target demographics. Ideal candidates should possess excellent track...

I am looking for an expert who can design and develop a lawful SS7 SMS interception system or lawful GSM interceptor device. The device/software should only be focused on android devices. On a high level, the functionality I need includes: - Interception of SMS messages on Android devices - Focus strictly on SMS content extraction Key skills required: - Understanding of SS7/GSM interceptors and their workings - Proficiency in Android operating systems will be crucial - Experience in data extraction and messaging protocols - Respect for legality and ethical handling of data The final product should not tamper with any other functionalities of the target device, and should strictly focus on lawful interception and extraction of SMS content.

We are in search of a Google Ads consultant with advanced certification to conduct a comprehensive audit of our advertising campaigns. The goal is to analyze current performance, identify improvement areas, and implement effective strategies to optimize results and maximize ROI. Responsibilities: Conduct a detailed analysis of our Google Ads campaign performances. Provide a comprehensive report highlighting strengths, weaknesses, and opportunities for improvement. Offer data-driven strategic recommendations for campaign optimization. Identify the most effective keywords as well as those that are not profitable. Suggest improvements for ad targeting, placement, and campaign structure. Develop a clear action plan with specific tasks for improving campaign performance. Required Quali...

I have a design that works with an Intel SoC, but I want a version using Efinix FPGA. It involves - FPGA providing control and timing pulses to the image sensor - LVDS data lines between the image sensor and the FPGA - DDR memory attached to the FPGA - a connection from FPGA to FT601 to make a USB3.0 connection (I know there are other ways to get the FPGA to make USB3.0 directly, but there's a reason why we want to use FT601 chip). This is the image sensor I think this FPGA would be suitable, but proposals can be discussed.

I'm in need someone to make me the same poster with out some flavors in he poster The skills and experience I'm searching for include: - Proficient in modern graphic design styles - Experience in advertising design, ideally in food or beverage industry - Creative and innovative thinker Your role would include bringing my vision to life, combining the dynamics of modern design with the appealing elements of food/beverage advertising. This should result in a poster that significantly attracts customers and entices them to try our product. I look forward to working with someone who understands the importance of this task and respects the desired modern aesthetic required to stand out in today's market.

I'm looking for a creatively skilled animator to craft engaging advertising GIFs and videos targeted at the senior demographic. These multimedia elements are aimed at showcasing a specific product that has numerous benefits with the potential to improve life. The tasks include: - Understanding the product's features and unique selling points - Developing engaging narratives that resonate with a senior audience - Producing high-quality GIFs and short videos that articulate these narratives and the product's benefits Recommended skills and experiences: - Proven experience with animation and video production - Familiarity with advertising and marketing communication - A track record of creating GIFs and videos for a senior audience - Knowledge of storytelli...

I'm seeking an experienced Facebook advertising expert. My target audience are newly engaged couples. The main purpose of these ads will be lead generation. Your experience should include: - Creating high-converting ads optimized for Facebook - Solid understanding of Facebook's algorithm - A proven record of successful lead generation campaigns - Proficiency in targeting specific demographics The perfect freelancer for this project will have a keen understanding of capturing the attention of newly engaged couples and lead them to our product, wedding videography service. Please include examples of similar ad campaigns in your bid.

I'm seeking a highly skilled developer to create a high-precision, web-based application that can quickly and accurately detect faces from selfies. Key Details: - The platform for this application will be web-based, requiring proficient knowledge in relevant web development skills. - The application must prioritize precision, allowing little to no room for mistakes in the face detection process. - Upon correctly recognizing a face, the application should be capable of grouping images with the same face, similar to Google Photos’ technology. Ideal Skills: - Experience developing high-quality web applications. - Expertise in facial recognition technology. - Proficiency in machine learning algorithms for accurate face detection.

...creating an engaging and compelling visual that will greatly enhance our marketing efforts. Key Tasks: • Develop an AI model centered around attractive imagery of women in bodysuits. • Ensure the model aligns with our brand and aesthetic values. Ideal Skills: • Proficient in AI technologies and software. • Good understanding of image design and fashion trends. • Experience in marketing or advertising is a plus. Please note this project does not require functionalities like body shape analysis, size recommendation, or clothing style suggestion. Your primary task is to create an enticing visual model. I want the AI model to look like the models in the attachment. The models will be wearing the blue bodysuit in the picture. When that is complete I will ...

I am looking for a skilled social media marketer who will manage my Facebook and Instagram advertising campaigns. The primary goal is to generate leads, targeted towards a teenage demographic. We are gaming websites which deals in monetary prizes Ideal Skills and Experience: - Proven success with lead generation campaign - Competence in ad targeting for youth demographics - Expertise in both Facebook and Instagram ads - Possess a creative approach to capture a youthful market Responsibilities: - Design engaging ads that resonate with all age groups - Monitor campaign results, optimizing strategy for maximum lead generation. - Manage ad placement and budget My ideal freelancer understands the teenage market and how to effectively capture their attention, converting views int...

...strategies. I provide the creative content, while you bring your online expertise. Key Tasks: - Create a user-friendly, aesthetically pleasing web design - Implement effective SEO strategies to increase web visibility - Leverage social media for audience engagement and growth Apart from these, I am particularly interested in innovative ideas on how to monetize the site. This could span across advertising, affiliate marketing, e-commerce, or any other strategies you may recommend. Our target audience and niche have already been defined, so it will be crucial that you understand how to best capture and retain this audience. In return for your skills and efforts, we'll split the profits generated from the web endeavor. I am excited about this collaborative project and ...

We are see...execute email marketing campaigns, SMS marketing, and other digital marketing initiatives Create compelling property listings, descriptions, and marketing materials Oversee the company's online presence, including website, social media, and advertising campaigns Collaborate with the Listing Acquisition Specialist to promote new listings Analyze marketing data and adjust strategies for optimal performance Requirements: Experience in digital marketing, particularly in the real estate industry Proficiency in email marketing, SMS marketing, and social media advertising Strong copywriting and content creation skills Familiarity with marketing automation tools and analytics Creativity and ability to develop engaging marketing campaigns Knowledge of real estate ma...

I'm in need of a one-page website for my Deaf Consulting services. The primary goal of this website is multifaceted- advertising my services, providing detailed information about my business, and collecting leads. Consequently, the approach to this project needs to be holistic, ensuring all these elements are incorporated seamlessly. Site Content: This platform will need to be designed with the provision of accessible design recommendations, accommodation strategies, strategic planning, and Deaf awareness training. If you have experience crafting messages in a clear, concise, and engaging manner whilst maintaining a professional tone, your communication skills will be invaluable for this project. Target Audience: A wide spectrum of users should be catered to since m...

...our customers. Key website features: - Online booking system allowing date and time selection - Customer review and rating system - An interactive pricing calculator Online Booking System: The heart of the website will be its online booking system. It should allow customers to select dates and times for their preferred cleaning service. It should be intuitive and easy to use, prioritizing user experience. Customer Reviews and Ratings: The website should also have a section dedicated to customer reviews and ratings. This will allow potential clients to see the quality of the services we provide. Payment Methods: For the booking system, we would like to include credit card as our main mode of payment. Therefore, a secure, reliable system set ...

I need a proficient web developer to create an internal order-placing system for us. This should not be accessible to the public. Only our customers should be able to log in and place their orders. Here's what I require: - A Web-Based Platform: The system needs to be accessible through a web browser. You'll integrate this system with our existing Zoho Inventory. - Multiple User Support: The software should comfortably accomodate numerous customers placing orders simultaneously. - User-Roles and Access Levels: The system should define different roles, primarily admin and customer roles. Admin role should have full access whereas customer role should allow order placements only. Ideal candidates will have experience in web-based software development ...

I'm seeking competent digital marketing services to build a strong online presence, primarily through social media marketing, SEO and PPC advertising. Key tasks: - Developing and managing social media marketing campaigns for Facebook and Instagram. Creativity in content creation, alongside ad campaign management, is key. - Implementation and management of effective SEO strategies to improve website visibility and ranking. - Handling PPC advertising with a strategic approach to maximize ROI. The goal: This campaign should help increase brand awareness and generate leads. Ideal freelancer: A perfect match would be someone experienced in these areas, preferably with a proven record of crafting and executing successful digital marketing campaigns. Familiarity with my ta...

...approach to an artificial gravity space station, called StarCycler, and my main goal is to gain recognition for this innovative idea. Here's what I need: - A review to ensure the content is up to Wikipedia's standards. - Edit where necessary to optimize the content for Wikipedia's posting guidelines. - Post the draft on Wikipedia once it meets their standards to avoid as being classified as advertising. The draft has all the necessary information, it just needs to be optimized to meet Wikipedia's posting standards and avoid rejection. The target audience for the article is the general public with an interest in space. Therefore, the editing should aim to make the information accessible yet engaging to a broad audience. Ideal skills and experience: - Proven...

...intelligence (AI)-based system capable of conducting a detailed analysis and classification of a large number of photos (approximately 500,000). The project aims to automatically identify and classify photos according to specific criteria, facilitating the quick and efficient organization of visual material. Scope of the task: Preparation and Configuration of the AI System: Development and implementation of an AI model capable of analyzing photos for specific features. Photo Classification According to the Following Criteria: Does the photo contain a watermark? Is it a real product photo? Does the photo depict a technical drawing? Is the photo showing cardboard or a product? Is the photo on a white background (hex #ffffff)? Data Recording and Organization: The system...

I'm seeking a skilled software developer who is experienced in working on digital signage solutions. The goal is to improve two main functionalities of ...organization of several media types. 2. Real-time Updates: The software also needs to allow instant updates in real time, to ensure that the information displayed is always accurate and up-to-date. The enhanced software will primarily be used for advertising and promotion purposes, as well as for displaying information. It should be compatible with TVs and digital signage displays. Ideal candidates must have a firm understanding of software development, especially as it pertains to digital signage solutions. A background in the digital advertising industry would be a plus. Looking forward to your innovati...

I am in need of a creative and skilled video maker who can produce a captivating medium-length (30-60 seconds) video ad for my QR generator website. For this task, you'll need to create a unique combination of both live-action and animated elements that effectively represent our service. The video ad should incorporate the following key messages: - H...a keen understanding of the digital marketing and the ability to present it in an engaging way is vital. - And finally, a call-to-action for viewers: Your knack for persuasive techniques with a clear and engaging CTA will be essential. In your application, please include examples of previous video ad projects that incorporated both live-action and animation. A background in digital services advertising will also give you a co...

We need a creative designer to craft a unique, modern, and minimalistic logo for our marketing and advertising agency. Here’s what we're looking for: - An original design with notes of orange and fuchsia to represent our brand. - We prefer a clean, minimalistic, and modern approach. - Despite the suggested options, we prefer a logo that uses no preset symbols. The designer we seek has a keen eye for modern and vibrant designs, the ability to communicate brand values through art, and a solid portfolio in minimalistic and modern logo design.

We need a creative designer to craft a unique, modern, and minimalistic logo for our marketing and advertising agency. Here’s what we're looking for: - An original design with notes of orange and fuchsia to represent our brand. - We prefer a clean, minimalistic, and modern approach. - Despite the suggested options, we prefer a logo that uses no preset symbols. The designer we seek has a keen eye for modern and vibrant designs, the ability to communicate brand values through art, and a solid portfolio in minimalistic and modern logo design.

I'm in need of a highly skilled professional to handle the creat...Facebook and Instagram platforms. The successful candidate must have an impressive track record in: - Crafting and overseeing ad campaigns across different platforms. - Optimizing ad performance to ensure maximum ROI. - Analyzing ad data and using the insights to inform campaign strategies. -Creating content -30days management and reporting A comprehensive knowledge of Facebook and Instagram advertising platforms is a must. Previous experience working with ads targeting specific age groups, gender, and interests would be highly beneficial. The ideal freelancer for this project should have a deep understanding of audience analytics and be able to employ top-notch strategies to reach and engage my target audienc...

I am looking for a skilled social media marketer who will manage my Facebook and Instagram advertising campaigns. The primary goal is to generate leads, targeted towards a teenage demographic. We are gaming websites which deals in monetary prizes Ideal Skills and Experience: - Proven success with lead generation campaign - Competence in ad targeting for youth demographics - Expertise in both Facebook and Instagram ads - Possess a creative approach to capture a youthful market Responsibilities: - Design engaging ads that resonate with all age groups - Monitor campaign results, optimizing strategy for maximum lead generation. - Manage ad placement and budget My ideal freelancer understands the teenage market and how to effectively capture their attention, converting views int...

I need a creative and skilled graphic designer to create a captivating brochure for advertising a particular product. This brochure's main target is to draw in potential customers. Key Requirement: - The brochure should articulate key product features and benefits. Ideal Skills: - Experience in graphic design particularly in creating engaging brochures. - Exceptional creativity and innovation. - Excellent time-management and organizational skills. - Accuracy and attention to detail. - Proficient in design software and technologies. This project requires a good understanding of the product to aptly represent its features and benefits. A portfolio demonstrating prior experience in similar projects would be preferable.

We are looking for a skilled designer to create external building signage/colouring for my relatively new dental clinic. We are considering incorporating a light box(es) / downlights, etc to continue advertising the clinic overnight as well. We are also l seeking innovative / creative ideas for our front door and the reception areas. The primary goal is to create a new look that conveys a sense of professionalism, precision and expertise using the limited space available. While the color scheme is not fixed, I would prefer it to be on a conservative side and to be able to send a message of professional aesthetics. Skills and experience in branding, outdoor / indoor design and understanding of colour psychology will be highly appreciated. Thanking in advance. Creswick Dental

I have a design that works with an Intel SoC, but I want a version using Efinix FPGA. It involves - FPGA providing control and timing pulses to the image sensor - LVDS data lines between the image sensor and the FPGA - DDR memory attached to the FPGA - a connection from FPGA to FT601 to make a USB3.0 connection (I know there are other ways to get the FPGA to make USB3.0 directly, but there's a reason why we want to use FT601 chip). This is the image sensor I think this FPGA would be suitable, but proposals can be discussed.

I'm looking for capable developers to help create an engaging, Canva-like system designed to seamlessly incorporate vector graphic artworks into pictures. Key features for this project should include: - A robust toolset for adjusting artwork characteristics, namely color, size and position. - A user-friendly manual (drag and drop) system for artwork placement. - Native support for vector graphics. The ideally qualified candidate should be experienced in graphic design software development, with a strong understanding of image manipulation tools and a knack for intuitive UI/UX. Experience in working with vector graphics is an absolute must. They should be capable of programming a drag-and-drop system and comfortable working with color and size adjustment tools. P...

A filter is needed 8500leads with their different academic results. please show relevent project

I need a professional designer who can create a hoarding design for my wholesale medicine shop. The main objective is to increase brand visibil...size range, specifically around 10-20 feet. The design should fit perfectly on this dimension. - The design should be minimalist and professional, aiming to increase brand visibility but still maintaining a clean and uncomplicated look. - Experience in outdoor advertising or hoarding design is a plus. - Familiarity with the pharmaceutical or healthcare industry would be advantageous for understanding the context and nature of our business. In your proposal, please include samples of past hoarding or similar outdoor advertising designs you've done, especially those that use a minimalist style. I look forward to seeing yo...

I'm seeking a designer to create a poster for an upcoming financial service targeted at individual customers. This poster will be instrumental in highlighting our service in a striking and informative way....our service in a striking and informative way. - Create a visually appealing poster that can clearly advertise our financial service - Design needs to be engaging for our core demographic - individuals interested in personal finance - A clear and concise message about our service should be communicated Ideal candidates should possess strong graphic design experience with an emphasis in advertising or marketing. Financial sector knowledge would be a bonus but isn't necessary. Your portfolio should reflect design ethos which is appealing to professionals interested ...

I am looking for an expert developer to build a web-based real-time audio streaming system. Key features/functionalities: • User Registration/Login: Users should be able to register and log in using standard credentials, PINs, or QR codes. • Compatibility: The system should be compatible with all phone devices and modern browsers. • Data Backend: The backend should be MySQL-based and be able to store relevant details about each active stream and the user connected to it. • Real-Time Transmission: The audio stream needs to be transmitted in real-time via Websockets. Ideal skills and experience: • Extensive experience in web development • Proficiency in handling MySQL backends • Experience with Websockets for real...

I'm in need of a voice-over talent, with a deft in both script interpretation and an energetic American accent, to bring my scri...my script for a Facebook advertisement video to life. The voice-over is targeted at seniors, thus familiarity with tonal characteristics that resonate with this demographic is advantageous. Ideal Skills: - Voice over experience, particularly in advertising. - Excellent American accent and elocution. - Ability to deliver an energetic tone whilst conveying the script meaning precisely. - Familiarity with the preferences of senior audience. This project is an opportunity to contribute to a performance-driven script for a calculated advertising campaign. Your creative input in the interpretation is as valuable as your voice talent. I look fo...

system io creation Funnel creation, Email marketing setup, System io troubleshooting What is the goal of your funnel? Generate leads What types of email marketing campaigns do you plan to run? Newsletter distribution, free digital magazine distribution, Product promotions

I have initiated a Google Ad campaign for my Shopify store. However, I am encountering issues with tracking conversions effectively. The objective of this project is to rectify the conversion tracking problem within the existing campaign. Additionally, the project entails the creation of two new campaigns, each targeting different landing pages on the website to enhance overall advertising efficacy and reach. Target country: UK. Industry: Kids store

I'm in need of a skilled software developer who can create an innovative application that plugs into Google Maps and incorporates functions similar to both Amazon and Duolingo. Key Features Needed: - Geolocation tracking: This function is vital as I want users to be able to see jobs in their proximity and potentially navigate to them. - Job Matching: The ability to accurately match job specifications with potential candidates is a must. - E-commerce Capabilities: Users should be able to make purchases on the application. User Interface Design: The design of the user interface is of utmost importance. The UX/UI design should be clean, modern and user-friendly. Authentication: The app will use email and password for user authentication. The ideal freelancer for this proj...

I am seeking a skilled and experienced freelancer to help in the development of a Medical IoT system with specific functionalities. Functionalities needed: - Real-time patient monitoring. - Remote access capabilities to patient data. - The system must be able to generate automatic alerts for any abnormal readings. Device Compatibility: - The IoT system should be exclusively compatible with blood pressure monitors. Data Security: - For data security, I require advanced level encryption to ensure absolute privacy and safety of the patient data. Ideal Skills: - Experience in IoT development, especially in the medical field. - Familiarity with blood pressure monitors - Proficiency in developing encrypted systems to secure sensitive data. I look forward to worki...

I need someone who can create advertising images and reels for adverts on social media. The focus is on customer and employee acquisition. This project is long-term, as we always need something like this.

I require a proficient PHP and CSS developer to customize the frame of my current built-in chat system. Tasks: 1. Chat Frame Customization - You will need to refine the chat system frame for both mobile and desktop browsers, ensuring a seamless user experience across platforms. We are not looking to overlay or replace the existing frame, but to enhance and tailor it to better suit our needs. 2. CSS Scrolling Fixes - We've encountered an issue where the layout gets distorted due to incorrect sizing while scrolling up and down. It's essential to address this issue, ensuring that function and aesthetic remain uncompromised, regardless of the screen dimensions or platform. Ideal Skills: - Proficiency in PHP and CSS - Experience in UI/UX design - Problem-solving ...