Csv reader aspnet gridviewtrabajos

I require an application to be built to read numerical data from a serial port (COM port) and send this value to an internet server. The application must be compatible with Windows OS only. It should have a user-friendly interface to select the COM port and server address. Here is the pattern the application should follow: - Read numerical data from the chosen COM port - Send the data received over to the specified server address During disruptions or errors in the COM port connection, the application should log the error and continue to run. Ideal Skills for this job: - Strong knowledge of serial communication - Experience in Windows application development - Familiarity with error logging handling This project requires a high level of accuracy and reliability, as well as the ability...

I'm looking to import a large number of product attributes related to a variety of mobile brands, including but not limited to Apple, iPhone, Samsung, and other brands. The attributes mainly focus on mobile brand names and respective devices under each brand Magento 2 • Ideal Skills and Experience: The successful freelancer for this project should have significant experience with Magneto 2 and CSV file preparation for product attributes mass import. A deep understanding of mobile devices, their respective brands and attribute categorization will also be crucial. It would be beneficial if the freelancer also has a forward-thinking approach, able to consider potential future additions and categorizations. I anticipate for this task to evolve and potentially require additi...

We are currently replatforming our e_commerce website to Adobe Commerce 2.4 and seek an experienced developer's assistance to prepare and upload catalogue data. The initial task is to prepare and upload the catalogue for one supplier with approx 800 products, together with associated images. The data is in the form of csv and excel files with the images in various formats. ## Short summary of the task - cleansing the data to work with Amasty module - creating upload files - uploading data & running diagnostic tests to ensure correctly loaded ## Ideal Experience and Skills - Adobe Commerce 2.4/ Magento - Experience of Amasty data upload module for adobe - A solid understanding of database management and data upload procedures.

I'm in need of a brilliant writer to conduct a thorough study on "Psalm 23" and what it means from different perspectives. This written study should be designed to engage a wide audience, from theology students, religious scholars, to the general public. Ideal candidate should have: - Outstanding writing skills - Deep understanding of Biblical texts, preferabl...understanding of Biblical texts, preferably with experience in similar projects. - Ability to engage different audiences in written form. - An open mind to interpret and respect different viewpoints. The result should be an engaging, comprehensive written document. The study should shed light on Psalm 23, uncover its different interpretations, and be understandable and engaging enough for any reader regard...

I am in need of someone who can assist me with installing my current POS software on my PRO-C15WA Touch POS System which operates on an Android platform. The task includes: - Installing the provided POS software on the hardware. - Ensuring the successful communication between the devices, specifically a barcode scanner, receipt printer, and a card reader. - Setting up system features such as inventory management, sales reporting, and a customer loyalty program. The ideal candidate for this job should have extensive experience with Android systems, POS software installation and hardware integration. Knowledge in troubleshooting and ensuring seamless hardware and software communication is a must. PRO-C15WA has already come with another POS System which i don't want to use anym...

I am searching for a skilled airflow developer who specializes in creating basic data pipelines. The specific requirements for this project are: - Creating dynamic DAG by reading data from CSV file. Say i have a CSV file:- table_name table_1 table_2 table_3 I need to create 3 dynamic DAG by using this.

...eye for detail and accuracy is essential for this part of the project. - Final Format: Upon completion, the structured data should be delivered in a text file. Experience working with text files and familiarity with their creation and management will, therefore, be an advantage. - Data Structure: Within the text file, the data needs to be structured as comma separated values (CSV). Thus, proficiency in handling CSV files is a must. I am looking forward to a freelancer who can effectively navigate complex datasets, and who is experienced in the creation and management of text files specifically with Comma Separated Values. To be successful in this role, you will need strong attention to detail, a methodical approach, and be comfortable working with mixed datasets. If you...

I'm looking for a Python developer specialized in data analysis and automation. The specs are: 1. Review our billing system API; 2. Write a cron job in Python using the PyCharm IDE to access our billing system's API; 3. Use the Pandas Python library to convert the data into CSV format; 4. Store the CSV on a cloud server; and 5. Push certain fields of the CSV to our CRM and business intelligence dashboard. We have some Python code that has already been developed for a similar project involving the same API that can be reviewed for context.

Simple task I have a .CSV file and I want a program that translates it to .SQL with the existing database

...study to help readers connect with the material. The content shouldn't sound like AI generated. - Clarity of Content: As it stands, the point of the case study might not be crystal clear to every reader. I want to ensure every bit of information provided adds value and moves the narrative forward in a clear, concise manner. - Grammar and Punctuation: While content is key, impeccable grammar and punctuation are non-negotiable. These are foundational aspects of high-quality writing and provide ease of reading to the audience. - Sentence Structure: Long, winding sentences can lose the reader. I need you to turn these into shorter, punchier sentences without losing essential information or context. For this project, it's essential to possess a profound knowle...

I'm looking for an experienced data manipulator who can efficiently reformat my data according to CRM-specific requirements. Specifically, I need the address and names in my data to be split into separate columns. Key requirements: - Break down the existing 'Address' field into: 'City', 'State', and 'ZIP code' columns. - Split 'Names' into two separate columns: 'First Name' and 'Last Name'. This does not require any data entry, just an understanding of data structures, and layout according to CRM needs. Ideal freelancer should have relevant experience, and proficiency in MS Excel or other spreadsheet tools. Quick turnaround time is appreciated.

Por favor, regístrate o inicia sesión para ver los detalles.

I need a skilled Python programmer to create a script that enables me to connect to a checkpoint MDS and CMA and panorama. I am looking to automate the process of analyzing a list of IP addresses in a CSV file and eliminate the obsolete objects from the rulebase of a specified policy package. The key functions for this project are: - Reading from a CSV file - Checking the existence of specific objects - Auto-deleting obsolete objects where required - Generating a detailed report upon task completion A deep understanding of Python is essential for this job, as well as familiarity with Network Security and Checkpoint Firewall. Experience in automation and reporting is also needed. I'm hoping for a solution that increases my work productivity by reducing manual tasks.

I need someone that can make a simple webapp that takes my CSV data for data analysis using some LLM. Please write I KNOW LANGHCAIN in your description. Preferably someone who can code it along with me.

...board listing portal similar in functionality to "". The platform should primarily cater to the UK market. Key Features to Include: - Job Posting & Editing: This should be user-friendly, offering both a simple form with basic fields for quick job postings as well as an advanced form with additional fields for more comprehensive listings. Setting up a feature to import jobs from a CSV file will also be necessary. - Job Search and Filtering: A streamlined UX is essential here. Users should be able to conduct keyword and location-based searches easily. - Job Credit Sales: Quite importantly, the platform needs to be set up to sell job credits to our clients, allowing them to advertise their vacancies. The ideal candidate will have prior experience in developing simil...

I'm seeking a creative and talented graphic designer who can create a brilliant, bold, and bright flyer outlining the details and itinerary of a cruise. The design needs to be punchy, vibrant, and engaging, immediately catching the eye and drawing attention to the most essent...American Letter size. - The design style must be bright and bold, breaking away from traditional or minimalist themes. - The primary message of the flyer should center around the cruise's intricate details and exciting itinerary. Ideal Skills: - Proven experience with flyer design in a bright and bold visual style. - Strong awareness of layout design and creating a visual flow that guides the reader naturally through the content. - Ability to articulate relevant information in an engaging and vis...

My goal is to standardize the naming conventions of our products on our e-commerce site. To do this, I will be using a CSV file which contains the products' names, IDs, and descriptions. Ideal Candidate: • Proficient in manipulating data within CSV files • Experience with e-commerce platforms • Detail-oriented to ensure accurate standardization of product names The task will consist of: • Updating product names in the CSV file to adhere to our new naming conventions • Ensuring the revised naming conventions correspond accurately with the correct product IDs and descriptions • Testing and verifying the accuracy of these updates on the e-commerce site This job requires a keen eye for detail to ensure every product name is updated acc...

...encompassing the following areas: - Cover Page - Table of Contents - Executive Summary - Remediation Recommendations - Framework Alignment - Detailed Insights and Analysis The attached MS Word document provides sample content that will need be in included and editable in this Goggle Docs template. The image files should easily be copied from our source application then pasted in the document. A CSV should easily be imported where you see the tables. The Google Docs template must be fully editable and we must be able to add sections, text, and tables where necessary. The template should use Google Docs compatible fonts. Headers and primary content should be the "Bai Jamjuree" font. Pages should have a horizontal lay out as seen in the attached example. The formatt...

If you know how to code a javascript or python script to get a few pieces of information from Google, then this is easy for you. Here's all we need in this small project: 1. For a particular google search ON MAPs, the program would output the web URL, and name and send that to excel (or a csv) - other fields would be provided to include as well. 2. It should let me pick 1-50 entries. 3. It should work from within the browser (NO API calls necessary). that's it! Thanks for your bid

I am in need of an adept WordPress website developer who can create an engaging blog site with a focus on organic farming and promoting a healthy lifestyle through organic food consumption. Key Functionalities: -The blog must include a comment section to allow for reader interaction and engagement. -Don’t forget to integrate social media sharing functionality to boost the blog’s visibility and reach. Key Goals: -The primary goal of the website will be to educate visitors about the benefits of organic food. Target Audience: -The blog is aimed primarily at individuals who share an interest in organic farming. Skills and Experience: -Proven experience in WordPress development. -Experience in producing blog or e-commerce platforms is an advantage. -Proficiency in int...

We need people that have not been involved in this project to look at the website from a customer perspective(pc and mobile) and make a report on things that will not make them buy and why not and how would they fix it(just and idea of what you think, there is no right or wrong). Look at the whole site and make a document on it in .csv Part of the website(link) | Issues(trust or technical) | How can we make this a better experience for you?

I require a freelancer who is proficient in extracting specific data points from a PDF document and translating it into a structured Excel or CSV file. The data is presented within paragraphs. Key Tasks: 1. Extract the following elements from the PDF: Names, dates, numerical values, lead location, phone number, email, US dollar value, status, date added. 2. Organise these elements in a structured format in an Excel or CSV file. Skills Required: - Attention to detail - Proficiency in data extraction - Strong knowledge of Excel or similar data management software - Ability to interpret information from paragraphs. Freelancer should assure accuracy as the correctness of extracted data is essential.

I'm seeking a competent writer to create a technology-related article. Your work should: - Engage with the subject matter, exploring various facets of technology. - Maintain a moderate level of technicality, incorporating reasonable jargon to keep the audience engaged and informed. - Exhibit a solid understanding of technol...a moderate level of technicality, incorporating reasonable jargon to keep the audience engaged and informed. - Exhibit a solid understanding of technology, capable of articulating complex concepts in a comprehensible manner. Ideal skills include, but are not limited to, evidence of prior technology writing, and an ability to make moderately technical content engaging and understandable for the reader. Previous experience in writing technology articles is...

I need a versatile and talented copywriter who can breathe life into my clothing and accessories line through compelling product descriptions. My products need to be represented in an appealing and convincing manner that matches the quality of the items. Below are the aspects that the project comprises of: - Each product description should range from 101 - 200 words. -...copywriting and a keen eye for details. The freelancer must be adept in understanding the unique selling points of the items and capturing their appeal to the potential customers. Creative writing skills are a must, and a good understanding of the fashion industry would be an additional advantage. I am looking for someone who can tell a story with each product and generate a strong desire in the reader to purchase...

...Server for database management and Familiar with stored procedures in SQL for database queries Strong understanding of user authentication and authorization (login, validation, management) Adept at CSV file manipulation and validation such as: parsing, data transformation, Aggregation, Joining and Merging, exporting, Find, edit or remove duplicates, Consolidate data, convert data types, clean data, Skilled in error handling and debugging to ensure application stability Experience with UI/UX design principles to create an intuitive user interface Functionality to import and manipulate data from CSV/XLS/XLSX files This role involves building a web portal with above mentioned features and: Admin panel for user management User login system with secure authentication User ca...

Craft an A4 sized glossy magazine for a special 50th birthday project, designed specifically with the receiver in mind. - Design Focus: The magazine is for a single reader, the person celebrating the birthday, and should be personalized to their tastes and interests. - Available Content: All content, including text and photos, is already available for you to utilize. Your role will be focused on the design and layout, bringing together the materials into a cohesive and engaging format. ( if available please provide historic project references ) - Theme: The overall feel of the magazine should be both personal and luxurious, akin to an exclusive glossy magazine ( JFK magazine, Bazaar, Vogue, Elle Decor.) High end luxury - Skills and Experience: Ideal freelancers should have experie...

I need a large volume of (Female) dating profiles with the following information: Name, age, bio, interests and pictures (min 2 per profile, but more is nice). Preferably in SQL or CSV. You can scrape them from other dating sites for exmaple, I need previews before buying. More details: Is this project for business or personal use? Personal What information should successful freelancers include in their application? Experience How soon do you need your project completed? ASAP

...in automating my reporting and dashboarding processes. An ideal candidate for this project should possess the following: Skills and Experience: • Extensive experience developing VBA Macros • Capability to generate reports automatically • Familiarity with handling data across multiple sheets Specific Tasks: • Developing macros to automate data retrieval from sources such as Excel workbooks and CSV files • Implementing these macros to streamline the process of report generation and dashboard updates By simplifying these tasks, this project will enhance our overall productivity and data management processes. It is crucial that the expert maintains an open line of communication and meets the agreed-upon deadlines. I look forward to collaborating with an ex...

I'm looking for a proficient data analyst with the ability to tackle complex data sources and deliver clear, actionable insights. Key Skills and Experience Required: • Exceptional statistical analysis abilities; • Strong data visualization and programming skills. Expected tasks: • Handle data from different sources such as Excel spreadsheets, SQL databases, and CSV files. • Analyze the acquired data meticulously and generate concise reports on your findings. Project Outcome: • Provide profound insights and recommendations based on the data analyzed. • Create comprehensive visualizations and reports to aid in decision making. • Develop predictive models derived from the data analysis. The ideal candidate for this project will have a notab...

I am in need of an experienced, part-time engineer to help with updating and enhancing the hardware and firmware of our existing PIC24 boards. The scope of work includes: Hardware updates: - Addition of new interfaces - Implementation of new readers like RFID, Weight and other sensors on UART, SPI, I2C Firmware Changes: - Integration of the new reader interfaces - Implementation of bug fixes - Updating existing firmware to accommodate the new changes - Fulfillment of new requirements, which will vary based on specific projects The ideal candidate should have relevant experience in board-level design and firmware engineering, with proficiency in UART, SPI, I2C protocols and development using the PIC24 platform. The project may also involve creating support for additional sen...

I'm seeking a skilled developer to create a web-based NGO membership software with a mix of pre-made templates and custom design. Functionality is key, and the software needs to easily handle: • Member and staff registration and login • Import and Export Membership with CSV/Excel format • Features for alerts via email and mobile SMS • Payment management • Comprehensive communication tools • Leads and member follow-up capabilities • Appointments and call management • Document management for customers • Creation and dispatch of quotations & invoices • Expense tracking • Staff management features • In depth accounting reports • Catalog or service management features • Features for alerts via email and mob...

...green screen and the translated word + audio pronunciation. The flashcard should appear in greater and greater intervals (more and more rarely) as they answer correctly. If they answer wrong, the card appears again in the same session (due cards). This algorithm for spaced repetition is very important - Users are integrated with the Wordpress users they already have - I need to be able to import a csv file with two columns (English word and translation) and they have to be able to be sorted in different decks that are linked to lessons. And I need to be able to view a list where I can upload image and audio file for each. EDIT: Actually we should use Dall-E API to generate all the images. And use ChatGPT API to come up with a prompt first for an image that fits the word - It shou...

Milestone 1: Using Python implement a machine learning algorithm (multiple linear regression) to predict startup profits (). The following steps should be done and need to be explain the code using # comments 1. Read the dataset from the csv file and put input data in X and output data in Y. 2. Deal with missing and categorical data (Data cleansing, even if there are no missing data) . 3. Divide data into four subsets (X_training, Y_training, X_test, and Y_test). 4. Train the learning model using (Linear regression algorithm) 5. Make a list of predictions Y_pred and compare it with Y_test. Explain what do you remark? 6. Make a prediction for a given data sample. 7. Without using "predefined functions" Find the following: 7.1. Total deviation of the regression line 7.2....

I'm in need of a skilled Graphic Designer to translate my ...aligns with my vision for the project. I'm looking for a professional who will be able to: - Create and integrate images and graphics relevant to the content, as I won't be supplying any. - Ensure that the design complements and enhances the research and analysis content, without distracting from the information. - Deliver a final pdf product that is visually appealing, easy to read, and promotes reader engagement. Previous experience in designing for academic or research-oriented publications is a plus, but is not mandatory. Proven artistic ability and mastery of graphic tools and software are essential for this role. The capacity to work efficiently and communicate effectively will also be highly valued ...

...in LinkedIn articles or informative Instagram carousel posts. Focuses on explaining or informing the reader about a specific topic, using facts, statistics, research results and examples without the writer's opinion. 2. Persuasive Writing: Crafting messages aimed at convincing the audience to take a certain action or adopt a viewpoint. Aims to persuade or convince the reader to agree with the writer's point of view or argument through logical reasoning and emotional appeals, backed by publication and research sources. 3. Descriptive Writing: Uses detailed descriptions to paint a vivid picture of a product, place, thing, or event for the reader, engaging their senses, making sure to get a reader reaction (comments/ Engagement). Create a strong image...

I'm in need of a proficient WordPress developer to...plugin include: - Create a dedicated database to store Gravity Form field data. - The ability to export and import the stored data in CSV format. - Adding a new form by importing CSV files. - Updating field data through a CSV import. - Storing a 'Number with Calculation' field specifically in the separate database. - Storing all field in the separate database. Moreover, the plugin should be able to perform addition calculations on the number field. Ideal candidates should have proven experience in WordPress plugin creation and management, a good understanding of database architecture and be familiar with Gravity Form Plugin operation. Experience with handling CSV file formats would be a signif...

scrape data from autotrader using python and export it into csv file

...in LinkedIn articles or informative Instagram carousel posts. Focuses on explaining or informing the reader about a specific topic, using facts, statistics, research results and examples without the writer's opinion. 2. Persuasive Writing: Crafting messages aimed at convincing the audience to take a certain action or adopt a viewpoint. Aims to persuade or convince the reader to agree with the writer's point of view or argument through logical reasoning and emotional appeals, backed by publication and research sources. 3. Descriptive Writing: Uses detailed descriptions to paint a vivid picture of a product, place, thing, or event for the reader, engaging their senses, making sure to get a reader reaction (comments/ Engagement). Create a strong image...

More details: What type of data sources will the dashboard and analytics be based on? Database, CSV files, API endpoints, Telecom signaling feed like ss7, diameter, gtp, volte, 5G Which telecom signaling feeds would you like to integrate into the dashboard and analytics? SS7 (Signaling System 7), Diameter, GTP (GPRS Tunneling Protocol); VoLTE (Voice over LTE); 5G, Http2 What specific metrics or data points would you like to track and analyze from the telecom signaling feeds? Call setup success rate, Message latency, Network congestion; Protocol errors; Signal strength, Signaling performance and tracing, AI based user interface to fetch and populate dynamic dashboards and reports based on customer needs

I have a text document consisting of raw data that I urgently need converted into a CSV file format. The fields to be populated from the text document into the CSV file consist of 'Field name,' 'apiName,' and 'Description.' Ideal Skills and Experience: - Proven experience in manipulating and converting data file formats - Proficiency in parsing information from different file formats - Ability to work at a fast pace while maintaining accuracy and attention to detail. Please be aware that I require this project to be completed as soon as possible.

Looking for a virtual assistant to utilize the GoHighLevel Social Planner to schedule a month's worth of content, on a monthly basis. Your tasks will include the following: - Filling out a CSV template that we'll provide - Scheduling content according to the template - Ensuring all content is correctly and timely dispatched Ideally, you have experience with GoHighLevel's platform and a keen eye for detail, since you'll be handling a great deal of information. A background in administration would be useful too. Efficiency and accuracy are key, so your time-management skills will also be crucial.

...job also includes the challenge of receiving stories and crafting a fortnightly digital newspaper. A bonus will ne paid each month. We want the masthead to look exactly the same at the Post blue background, white text/same font but to change it to be The Roast. Yiu will see how ive put in the kicker stroke on the "R" and the "A" to make it the Roast. Key Features: * Bold headlines - to attract reader attention. Similat font and style to the newspaper ive showed. * Clear section headings - for easy navigation around the paper * Eye-catching graphics - to give a visually appealing look. Sections/Categories: The newspaper will encompass varied sections, to be finalized during the design process. Color Scheme: * The colours are as design. Ideal Skills: *...

I'm looking to build two engaging, modern websites for two published authors. The essential aim is to elevate book exposure, escalate sales, and establish a connection with avid readers. Website Content Expectations • Author bios to give readers a deeper understanding of the authors. • Detailed summaries of all published books. • A space for readers to purchase books direct...Experience in building e-commerce and promotional websites. • A strong understanding of modern design principles. • Proven success in driving audience engagement. • Familiar with the author/book industry will be a plus. I'm counting on the chosen freelancer to create a seamless user experience that aligns with each author's brand, ultimately leading to a significant inc...

...part of the interface will be a csv file uploader. there will need to be a button for the administrator to upload a csv file that contains contact information. the csv file will contain the following parameters: first name, last name, phone number, email, address, city, state, zip code. whenever a csv file is uploaded it creates contact information in a contact database stored within the application. the contact database will be used by the application to make automated calls. when a csv file is uploaded, the app needs to check the new csv file against existing contacts in the contact database and omit duplicate contacts, so that only new contact information is added. this will allow me to use updated csv files that may have duplicate i...

...can order these products. They will get the vouchers by email or download. The user data and registration data are to be uploaded by the portal provider via API. Payments should only be done with virtual tokens. No real money. The platform will give points to customers via API on a regualar base or for special jobs. The products should be uploaded by the business customer via WebGUI, API and csv upload. If you have any questions to this, send me your questions upfront. I am very busy so i am not able to answer very quick. Only one or two times a day. Ideal freelancers would have experience developing permission-based systems, eCommerce sites, and preferably, token or cryptocurrency marketplaces. A clear understanding of creating engaging and user-friendly interfaces is essen...

I'm in need of a talented wordsmith for technical article writing. These articles are i...article writing. These articles are intended for a professional audience, hence, complex subjects and industry jargon need to be effectively translated into clear, engaging, and easy-to-understand narratives. Expectations: - Write high-quality technical articles that captivate professionals - Conduct thorough research on technical topics to ensure accuracy - Ability to convey complex concepts in a reader-friendly format Ideal Skills: - Exceptional command of the English language - Extensive technical writing experience - Excellent research skills - Ability to meet deadlines. Your ability to deliver well-researched, compelling, and expertly crafted technical content will be crucial to t...

I am in search of a skillful writer who can provide informative blog articles, website copy, and support with SEO optimization for more than 10 pieces of content. Ideal Skills & Experience: - Exceptional writing and editing skills - Solid understanding of SEO and how to naturally incorporate keywords into written copy - Strategy minded: able to ...Strategy minded: able to suggest engaging topic ideas that align with overall brand voice and audience's interests - Experience in creating various types of online content: blogs, website copy, etc. - Ability to adjust tone and style based on platform and audience You will need to understand the unique tone I am seeking, which is primarily informative. The content should educate and engage the reader, providing value while also ...

I need a seasoned professional to handle data processing tasks for my project. The main objective is to process input data from CSV files that fall under 1 GB size on average. Requirements: - Experience in handling, processing, and managing CSV files - Proficient in data analysis - Attention to detail is a necessity in order to maintain data accuracy - Ability to deliver within stipulated deadlines With the right skills and experience, this should be an exciting and straight-forward project. Your role will be pivotal in fulfilling the main objective of processing input data accurately and efficiently.

I am in search of a highly skilled marketer who can promote my new self-help book, focusing primarily on personal growth, to general readers. This project demands a keen understanding of the publishing industry, coupled with innovative marketing strategies. Ideal Skills: - Copywriting: An engaging pitch will drive more traffic. - SEO/SEM:...innovative marketing strategies. Ideal Skills: - Copywriting: An engaging pitch will drive more traffic. - SEO/SEM: Optimization helps to reach the target audience effectively. - Social Media Marketing: Utilized for extensive reach and user engagement. Previous experience in book promotions would be highly advantageous for this project. Show me how you'd make my book the talk of the general reader community. Let's inspire many towa...

...in real time, have a function to display an average angle for a given time interval, while also producing a CSV file for further analytical processing. Key Responsibilities: - Integrate GPS (speed) and angle sensor for live reading. - Function to select which data is displayed. - Function to run a programmable time interval and calculate and display the average angle for that time interval. - Setup a system to produce a CSV file for data analysis. Ideal Skills: - Experience with mobile device hardware and software integration. - Proficiency with Open-Source Software. - Strong understanding of GPS and angle sensor technology. - Capacity to work with sensor data and CSV files. This project requires a hands-on approach and a deep understanding of se...