Database development project management jobs

I need a simple, efficient leaderboard app that can be displayed on a TV via a Raspberry Pi. The app should allow users to add/edit scores from their mobile devices. I will also need the app to function without an internet connection, using WiFi Direct with no need for Bluetooth. Key Requirements: - Development for both iOS and Android platforms - Real-time score updates - Player profile management Ideal Skills: - Proficiency in mobile app development for iOS and Android - Experience with Raspberry Pi integration and WiFi Direct - Prior experience with real-time data handling - Strong understanding of offline functionality in mobile apps

...company, we specialize in offering software development, mobile app development, digital marketing and IT consulting services. Our target market encompasses both small and mid-sized businesses along with enterprise-level organizations. We are now in search for a seasoned IT Sales and Operations Executive. Responsibilities of the role: - Lead Generation: Utilizing both traditional and digital channels to discover potential clients within our target market. - Deal Closure: Negotiating and finalizing deals effectively. - Client Relationship Management: Maintaining robust relationships with our clients, ensuring their needs are met while driving business objectives. Ideal candidate: - Proven experience in IT sales, particularly within the software development a...

I'm looking for a skilled developer to build an efficient e-commerce application on the WordPress platform. The application needs to be packed with a host of essential features, including: - User registration and login - Product search and filter - Shopping cart and checkout - Partner login - Discount and offers - Payment gateway integration The primary preference for facilitating transactions is Razorpay. Those with previous experience in creating similar platforms or integrating Razorpay into a WordPress site will be ideal.

I am seeking an expert web development consultant to guide me through various aspects of full stack web development. The consultation will encompass frontend and backend technology choices, as well as database design and architecture. You must have at least 10+ years of full stack development experience. The main goal of this consultation is to provide sound advice on technology selection, design, and architecture of my web development project. The consultation should address the issues of technical feasibility and performance scalability for my project. I would like to understand best practices and potential pitfalls to avoid while building scalable and high-performing projects. The perfect candidate for this job would be an experien...

I'm in need of proficient Flutter developers to exclusively build an iOS app. The project is already complete, You need to build IOS app build. Feel free to reach out if you think you're the right fit for this project.

We need a salesforce commerce expert who can perform the work listed below. Of course, this is a very rough “plan and description” We would like to arrange a non-binding Zoom meeting to talk about our project. In the end, we need much more than what is written or listed here. We assume that 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 anonymize...

...virtual assistant to support me with my day-to-day tasks. This will involve a range of responsibilities, but the main areas you'll be assisting with are: - Email Management: I need someone who can effectively manage my inbox, filter important messages, and help me prioritize tasks. - Customer Service: Efficient customer service is integral to my business. I need someone who can handle customer queries and ensure their issues are resolved promptly. - Social Media Support: I require assistance with posting updates on both Facebook and Instagram. It would be a significant advantage if you have experience with social media management. The anticipated hours per week for this role are less than 10 hours, at the beginning 3-5. I'm looking for someone who can work effi...

I NEED TO JOB READ Please My name is mojtaba from iran And i living in turkey because i cant live to iran and i need to leave turkey and go to armenia That's why i need to find freelancering job I am Professional and i can do your work goodly im new in freelancer As a photo and videographer with 18 years of experience...Photoshop, Premiere, Davinci, and Lightroom for editing and color grading. I am creative and excel at coming up with unique ideas, and I love working with clients to understand their needs and bring their ideas to life. Communication is key to my work, and I am committed to providing excellent customer service and ensuring that my clients are completely satisfied. I am also highly skilled at time management and always deliver high-quality work on time and...

It is necessary finish a project managemet application made in laravel. The change are: - make some change regard the flow, the links, the design, the ecommerce and report; - It is necessary experience in query, report charts, pivot builder and Business intelligence to change the reports that must have good design, many filter and cross. the charts must have drill down. Please answer only if have experiences in project management software and pivot-query-busienss intellegence. And show my the url of similar job made.

Create an experience cloud site. Create one dynamic reusable search component in site it should be visible to the the user A but should be hidden to the user B. If we will get 50000 records how to optimize solutions .

...an expert in React Native development (Specifically version 16.8.3) to bring our app vision to life. While we have not specified any features or functionalities that we require, we expect the professional to help us identify the necessary elements based on our objectives. The developer will be predominantly responsible for: 1. Crafting the feature within the application 2. Understand the current app code and develop accordingly. 3. Developing React Native modules 4. Document their findings and work and share with the organisation 4. Troubleshooting and resolving all related performance issues While this position focuses on React Native, there might be scope to work on other parts of the app. Therefore, a broad understanding of mobile app development is prefe...

I require a Warehouse Inventory Management Software to efficiently track, manage and report on our inventory. Key Features: - Real-time Inventory Tracking: This is essential for us to maintain accurate stock levels. - Reporting and Analytics: We need the software to generate insightful reports on inventory trends, stock levels, and other key metrics. User Base: There will be a limited number of users accessing the software, specifically 1-10 users. Ideal Skills and Experience: - Proficiency in developing inventory management software - Strong background in real-time tracking and reporting - Experience in creating user-friendly interfaces for non-technical users would be a huge plus

I'm seeking an experienced resume writer, familiar with the tech industry, to develop a professional profile that highlights my key skills. Key Expectations: - Creation of a professional profile, not a typical job-seeking resume. - ...writer, familiar with the tech industry, to develop a professional profile that highlights my key skills. Key Expectations: - Creation of a professional profile, not a typical job-seeking resume. - Emphasis on my specified skills: Business Development and Key Account Management. Ideal Candidate: - Knowledge and understanding of the tech industry to ensure accurate representation of skills. - Proven resume writing experience with focus on professional profiles. - Exceptional ability to highlight skills such as business development...

For my IT business, I’m in need of a comprehensive Asset Management System that maintains an updated status and records of IT hardware. Key Features: - Inventory tracking: The system must be able to keep a precise count of all assets like computers, servers, printers, phones, simcards, etc. - Owner identification: The person or team using the equipment should be easily identifiable. - Maintenance tracking: It should be able to record and remind us of essential maintenance activities to prevent sudden failures. The ideal candidate to execute this project should have: - Proven experience in developing inventory management systems, particularly those that have been utilized in IT settings. - Strong knowledge and skills in creating web-based systems. - A keen und...

...The main goal of the website is to showcase the services and products we offer. I am looking for a developer who can suggest and implement a cost-effective platform for both development and hosting. Please note that I prefer individuals who are based in India. Key Features: - Service and Product Listings: The website should have a clear and organized presentation of our products and services. - Contact Form: An easy-to-use and reliable contact form for potential clients interested in our offerings. - Client Testimonials: A section where client feedback and testimonials can be featured. Ideal Skills: - Website development expertise, particularly in creating professional business websites. - Experience in suggesting and setting up cost-effective hosting solutions. - Famil...

I need a professional to scrape specific...professional to scrape specific details from a website directory for a one-time project. - Specifics: The data of interest includes the company names, their URLs, and their expertise. This information is laid out in rows on the website. - I wish for the freelancer to carefully extract this data, ensuring no errors or omissions are made. - The final output is essential to be in a CSV file format. I require this scraping to be done just once, and I do not foresee a need for ongoing scraping after this initial task. As the data is crucial for my business development, I am seeking someone who can deliver accurate and complete results in a timely fashion. Prior experience with web scraping and proficiency in data management...

I'm currently encountering connectivity issues with my existing Azure Virtual Networks specifically with connecting to the MySQL database. I have a main Vnet with my mysql database in there. I have a virtual machine in there too which can connect to the database I have a second vnet which is peered to the main vnet. I have a virtual machine in this vnet too. It can talk to the virtual machine in the main vnet, but cannot connect to the database. I need it to be able to, and I cannot figure out why. You can tell me how to do it and I can test, this doesn’t need to be a long project!

I'm looking for someone to set up an FTP server for us. This server will act as a central location for us to receive Excel spreadsheets daily from our suppliers. We only have limited knowledge of Filezilla, so ideally...different levels of access. Suppliers should be able to write to the server but not be able to modify or delete other files. Ideal Skills: - Proficient in setting up FTP servers and familiar with Filezilla - Experience with network security and data encryption - Ability to create a user-friendly interface for non-technical users - Excellent communication skills to guide us through the setup and management process - Attention to detail to ensure all files are processed correctly Please let us know your experience with similar projects and your proposed approac...

Please develop crypto wallet quickly. You must have experience and deliver quickly

I need an expert to help with advanced troubleshooting and optimization for my Oracle database. The ideal candidate should have: - Proven experience in database administration. - Proficiency in Oracle database. - Expertise in database troubleshooting and performance optimization. - Adept in using SQL Developer for managing database tasks. You'll be handling tasks such as: - Identifying and resolving performance issues. - Suggesting and implementing optimizations. - Monitoring database activities to ensure smooth operations. Your role will be crucial in ensuring the efficiency and security of our Oracle database.

...develop with circuits, VR glasses with headset?. I'm in need of an electronics engineer specializing in circuit design and prototyping. The task at hand is to be the backbone of an advanced project - an IoT device with connectivity capabilities. Key Responsibilities: - Designing a custom circuit: Your main responsibility will be designing a custom circuit. Given that the project is advanced and involves IoT features, the circuit design will need to be equally intricate. - Building a functional prototype: While the primary focus is on circuit design, you will also be involved in prototype development. Your understanding of components, connectivity and functionality will be crucial in bringing this prototype to life. Ideal Skills and Experience: - Proficienc...

...Instagram and Twitter accounts, taking charge of managing our online community, and crafting effective e-mail marketing campaigns. You should be an individual with strong command of English, and a creative mindset to help push the boundaries of our digital marketing efforts. Responsibilities Include: - Creating Social Media Posts (image + content) on Instagram and Twitter; - Doing community management in social; - Creating e-mail marketing campaigns; - Creating blog posts; - Managing a CRM (Monday); - Ability to create reports with insights; The end goal of our marketing efforts includes both increasing brand awareness and driving website traffic which ultimately fosters lead generation and customer engagement. Our target audience encompasses a wide range which include...

Looking for a freelancer with expertise in managing and manipulating numeric data sourced from Excel spreadsheets. The work involves: - Efficient management of extensive numeric data - Organizing the data effectively onto separate worksheets according to their specific types Ideal candidates are those with previous experience in data entry and strong proficiency in Excel. Your responsibility would not only be to perform accurate data entry, but also structure it logically and intuitively. It requires excellent attention to detail, precision, and the ability to understand data categories. We value those with a proactive approach who can offer insights into improved data organization. Solid experience in similar projects is preferred.

...entry, file organization, and document management. Act as a liaison between team members and external parties, ensuring effective communication. Assist in managing virtual communication tools and platforms for the team. Help with social media management and content creation as needed. Handle routine customer inquiries and provide excellent customer service. Stay informed about industry trends, organizational updates, and relevant news to contribute valuable insights. Qualifications: Proven experience as a virtual assistant or in a similar administrative role. Strong organizational and time management skills. Excellent verbal and written communication skills. Proficient in using virtual communication tools (e.g., email, video conferencing, project manageme...

Project Description: Customer Data Integration and Personalized Marketing System Introduction: In the contemporary business landscape, understanding and catering to the needs of customers is paramount for organizational success. To achieve this, businesses must gather, organize, and analyze data about their potential and existing customers. This project focuses on developing a comprehensive system to streamline the process of collecting, integrating, and leveraging customer data to create personalized marketing campaigns. Objective: The primary objective of this project is to establish a dynamic and continuously updated database that empowers personalized marketing strategies. By gathering, cleaning, integrating, and analyzing customer data, the system aims to ...

Notes---- pls Contact only if it is useful and you understand. Read first We are in search of a proficient Laravel/PHP developer to assist in the development of APIs for our upcoming matrimonial app. The backend infrastructure is based on Laravel, and we require the creation of several API endpoints to power core functionalities of the application. Notification API: Enable notifications for user interactions and events within the Code: Implement coupon code management for user promotions, including creation, validation, and : Develop APIs to manage user messages, including sending, receiving, deleting, and reading Active/Online: Track and display users' last active time and online Match: Calculate similarity scores between

I'm looking for a MATLAB programmer with expertise in developing advanced algorithms. The ideal candidate should be able to develop a program based on the water cycle algorithm for optimizing a given function.

I have a site to get inspiration from I'm looking for a skilled WordPress developer to create an e-commerce website for me. The website is primarily meant for business promotion and selling products online. Key Points: - The website needs to be designed using WordPre...have a specific processor, Lenbox, that I'd prefer to use. Ideal Freelancer: - Proven experience in developing e-commerce websites using WordPress. - Familiarity with custom payment gateway integration, specifically Lenbox. - A good eye for design with the ability to create a visually appealing and user-friendly website. If you feel you have the skills and experience needed to complete this project successfully, I look forward to reviewing your bid. Please include examples of similar projects you'...

I'm in need of an experienced developer who can create a mobile a...for iOS. My main goal is to have a reliable platform that delivers push notifications. Key Requirements: - The app should be developed exclusively for iOS, targeting Apple users. - It should incorporate a robust push notification system, ensuring that users receive timely updates and notifications. - High-quality coding and user-friendly design are essential for this project. Ideal Skills: - Proficiency in iOS app development - Extensive experience with push notification implementation - Strong understanding of user experience and user interface design I'm looking for a professional who can deliver a high-quality app that meets my specifications. Please include your relevant experience and past...

I am seeking a freelancer to help with data entry a...am seeking a freelancer to help with data entry and basic bookkeeping tasks. The primary tasks are related to managing a practice management software, specifically: - Data entry for spreadsheets - Data entry for online forms - Data entry for documents The software I need assistance with should include: - Appointment scheduling (?) - Billing and invoicing - Patient records management - General client information This project requires attention to detail, excellent organizational skills and a high level of accuracy. The ideal candidate should have experience in health/medical admin - data entry and basic bookkeeping, as well as familiarity with practice management software Please get in touch if you have t...

Hello, I'm in need of a professional to create an embedded data acquisition module. This module's primary purpose will be to monitor and collect data. The module will be primarily responsible for collecting analog and digital IO data, with a focus on 0-5V range signals. Ideal skills and experience for the job: - Embedded systems development - Proficiency in collecting and managing analog and digital IO data - Experience with 0-5V range signals - Ability to create a robust, reliable and efficient data acquisition module The successful candidate will be able to deliver a module that can effectively monitor and collect data, and ensure its seamless integration into the system.

...Description: We are seeking an experienced individual in algorithmic trading and API integration to assist in setting up automated trading signals. Our algorithm, currently operating on the TradingView platform, generates precise buy and sell signals. However, we require assistance in seamlessly translating these signals into actionable trades on our trading platform. The primary objective of this project is to integrate our existing algorithm with the trading platform's API to automate the execution of trades based on generated signals. The selected freelancer will be responsible for establishing a robust connection between the algorithm and the trading platform's API, ensuring timely and accurate execution of orders. Key tasks include: 1) API Integration: Configure...

I'm in need of a proficient video editor who can create a concise and engaging video for instructional purposes. The end product should be less than 5 minutes. Key Requirements: - Experience: Prior experience in creating educational or ins...than 5 minutes. Key Requirements: - Experience: Prior experience in creating educational or instructional videos is highly desirable. - Creativity: Ability to transform raw footage into a captivating educational piece. - Attention to Detail: Must ensure that the content is accurately and effectively conveyed. - Time Management: Efficiently delivering a high-quality video within the expected video length. Please note that voice-over services are not required for this project. The video should be able to stand on its own as an effec...

Project Overview We are seeking a skilled Android developer to create a simple and efficient Car Maintenance Tracker app designed for auto repair shops. The app's primary function is to streamline customer and vehicle management by utilizing RFID technology. Core Features: RFID Integration: The app will utilize an RFID reader connected to the Android tablet to scan customer vehicle tags. Scanning a tag will display the vehicle's service history and stored information. Vehicle & Customer Data Management: For new customers, the app will allow users to create profiles by entering: Customer Name Contact Information (Phone, Address) Vehicle Details (Type, Engine Type, Oil Type, Filter Types, Battery Size, etc.) Additional Notes Existing customer data can be ea...

...and Payout functionalities. Key features include user management, contract management, and notifications. Requirements: Proficiency in app development with a focus on security and user experience. Ability to integrate APIs seamlessly. Familiarity with KYC processes and payment gateways. Strong communication skills and a proactive approach. Project Scope: Develop the app based on the Figma design. Implement sign-in, sign-out, and user management features. Integrate KYC, Wallet, Payin, and Payout APIs. Create a contract management system. Set up notification functionality. Note: Chat functionality is not required. Project Budget: The project budget is 25,000 INR. How to Apply: If you have the skills and experience required for t...

I'm looking for an experienced developer to ...WooCommerce-based dropshipping website. Key Functionalities: - Automated Inventory Management: This is crucial for seamless transactions and real-time updates to stock levels. - Multi-Vendor Support: I plan to have multiple vendors on the platform, so the site should be able to manage different product sources effectively. Product Volume: - I anticipate having a catalogue of more than 500 products, so the site should be optimized for high volume. Ideal Skills: - Proficiency in WooCommerce: Given the platform preference, expertise in WooCommerce is a must for this project. - Experience with Dropshipping: Handling dropshipping websites before is a plus. - Inventory Management Skills: Understanding of automated inven...

I'm seeking a property manager capable of handling a variety of tasks. Responsibilities primarily consist of a broad range of account management duties: * Gather data from designated sources (e.g., Google Drive) for entry into document management systems or partner websites. * Review documents for accuracy and completeness, attaching supporting files as necessary. * Conduct searches for additional information to complete incomplete documents. * Verify, correct, and manage data integrity, including deletion of unnecessary data and data consolidation. This position demands meticulous attention to detail, a college degree, proficiency in basic software tools (Microsoft Office - Word & Excel), and accessibility to email and devices (computer or phone). We require indiv...

I am seeking a skilled developer to create a Chrome extension with AI capabilities for legal tasks. Key Features: - The extension should include advanced AI features to automate specific legal tasks. - The AI should support smart search and analysis, automated docum...Features: - The extension should include advanced AI features to automate specific legal tasks. - The AI should support smart search and analysis, automated document classification, and natural language processing for legal documents. Ideal Skills: - Proficiency in Chrome extension development. - Experience in AI and natural language processing. - Understanding of legal documents and processes. Please note that the specific types of legal documents to be handled by the extension are not disclosed in the initial p...

I'm looking for skilled app developers who can create an application that is compatible with both iOS and Android devices. The primary function of the app has not been decided yet, so I'm open to your creative input and suggestions. However, some features I would like to consider for the app include: - Locatio...skilled app developers who can create an application that is compatible with both iOS and Android devices. The primary function of the app has not been decided yet, so I'm open to your creative input and suggestions. However, some features I would like to consider for the app include: - Location-based services - Push notifications - In-app purchases If you have experience in cross-platform app development and are adept at integrating the above features, I...

...Property Managers): 1. Posting a Project: 2. Customers start by posting their home improvement or renovation project on the platform. They provide detailed information about the project, including the type of work needed, project scope, budget, timeline, and any specific requirements or preferences. 3. Project Review: 4. Admin reviews the project posting to ensure it meets their guidelines and standards. Once approved, the project is published on the platform, where it becomes visible to registered service providers. 5. Receiving Quotes: 6. Registered service providers who are interested in the project receive notifications or alerts about new project postings that match their expertise and service area. ...

...forward to developing an Organic SEO strategy aimed at enhancing search engine rankings and boosting online sales. - I'm primarily interested in freelancers who could provide a comprehensive project proposal outlining the approach and steps to be taken. - An ideal bidder should demonstrate a deep understanding of SEO best practices, and a proven track record in rolling out organic SEO strategies, which have shown a significant improvement in search engine rankings and sales. - Please provide details of your strategy, the deliverables, and the timeframe you think would be reasonable for this project. The focus will be on organic methods over paid or local strategies. I'm looking forward to hearing your innovative suggestions and approaches to achieve these...

I'm in need of a React JS expert to assist in the development of a single-page application, specifically an interactive user dashboard. The main goal of this project is to create a user-friendly platform that allows for effective user management. Key Responsibilities: - Developing a responsive and user-friendly single-page application - Implementing an interactive user dashboard - Creating a user management system which should include functionalities like user registration, login, and profile management. Ideal Candidate: - Proficient in React JS and its ecosystem - Experience in developing single-page applications - Previous work on user management systems - Strong understanding of responsive web design - Ability to work independently and m...

...Realistic 3D: The preferred art style for the game is a realistic 3D design. Ideal Skills and Experience: - Proficient in game development, particularly in creating MMO games. - Strong command of 3D design and development, with a focus on realistic art style. - Prior experience in implementing multiplayer and social features in games. - Ability to create a user-friendly and engaging quest-based gameplay system. Needed to make the game web-based (run in browser) optimize to make lightweight and slow network work progressivly javascript based is required, core code must be clear ES6 oop ui that enable editing the world in general and manage props and objects from a database allow login in game and enable microphone to a specified distance near the location of player...

I am looking for a web d...professionals. It should be designed to keep a professional tone and design. - Content: The content of the site will be mainly related to product/service information and its related images. - It should have greater visibility on Google, Bing etc and should be able to generate higher website traffic. The ideal candidate for this project should have experience in: - successful track record of developing SEO-friendly WordPress websites - a strong understanding of website development- both for desktop version and mobile version - ability to understand the preferences of a professional audience. - ability to create a visually appealing and user-friendly design - Familiarity with best practices for increasing website traffic through on-page and off-pa...

I urgently need your help on target company research on our new project Sprüth Magers, with a completion goal set for the end of this Friday. This task will involve delving into sectors such as the art market, hospitality, luxury fashion, and retail. It's a great opportunity to gain foundational knowledge in these exciting industries. Does this sound interesting to you? If you're interested, please respond to this message, and I will provide you with more detailed insights into this assignment. Task Bucket - Sprüth Mager ZFL research 1 Please research and identify additional companies in each category to expand our target company list to between 75 and 100. 2 If you discover any new and relevant categories during your research, please note them down for discuss...

On Site Project - Regular Business Hours I'm looking for an experienced Wordpress professional who can swiftly and efficiently update the content on my existing website. The required updates include: - Text content modifications: Providing with the source and instruction, I need you to update and improve the existing text to give it a more engaging feel. - Image replacement: Under my direction, I need you to replace a number of existing images on the site with new ones that I will provide. Due to an imminent deadline, the project needs to be finished ASAP. Ideal candidates would have a background in Wordpress editing and content management, with a keen eye for detail and aesthetics.

...build a GUI on a boilerplate. The ideal candidate should have a solid understanding of complex UI elements and internationalization techniques to deliver a high-quality project. Key Functionalities: - User registration and login/logout. - A comprehensive dashboard displaying user analytics. Design Requirements: - The design should replicate the minimalist style seen here: Content: - The GUI should accommodate text, images, videos, and apps. Once given a general direction, the freelancer will need to be proactive and independent in implementing these elements. This project requires a developer who is detailed and thoughtful in their approach, with the ability to handle both design and functional aspects. If you are well-versed in the above specifications

...patients to have video calls with healthcare providers. - Prescription management: To enable patients to easily view, manage, and refill their medication. - Appointment scheduling: To allow patients to book, reschedule, or cancel appointments with healthcare providers. Additionally, the app needs to integrate with: - Electronic Health Records (EHR) system: To enable seamless information flow between the app and EHR system. - Payment gateway: To provide patients with an easy method to make payments for consultations or prescriptions. - Pharmacy database: To ensure prescriptions can be directly transmitted to the patient's preferred pharmacy. Ideal candidates should have prior experience in healthcare or telemedicine app development and have a strong understan...

I am seeking a seasoned Excel expert to manage a complex data entry project. Your focus will be the development and implementation of advanced macros to ensure efficient, effective data management. Key Responsibilities: - Executing Excel data entry tasks - Developing and applying advanced macros Preferred Skills & Experience: - Proficiency in Excel - In-depth understanding of advanced macro development - Proven experience in similar data management projects The ideal freelancer will be detail-oriented, possess strong problem-solving skills, and have a track record of improving efficiency and accuracy in data entry tasks via macro automation.

...-Authorizations -Risk Management -Process Controls I required a chatGTP bot created and data should be extracted and presented in XML format I need a proficient AI chatbot developer with exceptional knowledge of SAP and Risk Management. This AI chatbot is intended to interact with my company's customers and perform the following tasks: - Accurately answer frequently asked questions - Give dynamic product recommendations matching customer preferences or needs - Guide customers through risk management processes Although I am open to suggestions, my preferred platform is Chat. This project calls for a skilled developer, ideally with previous experience in designing AI customer service chatbots. You should be conversant with SAP systems and understand th...