[IT Note] Top ranking of consulting firms Which consulting firms are top ranking? The top ranking of consulting firms are updated by every years, and I remember McKinsey is always top pick as absolute position. The many MBA graduates want to go to consulting firms, but I think that fundamental competence and business pattern of consulting firms are not changable in short term. So I agree to pick..

[IT Note] Cross browser test What types of cross browser test tools are recommended? Some years ago, I've led multiple development projects for mobile apps and ecommerce web, and it needed to put big scale manpower + device in order to test compatability over different devices/browsers. It caused to spend many working times and budget as well. Even we developed virtual emulator at that time, but..

[IT Note] Amazon: e-commerce Top1 in US What are top 10 ecommerce companies in US? Absolutely, Amazon is strong 1 and weak 9, and even there are significant improvement from Walmart, Best Buy & Target, but I think that Amazon will have kept number 1 position over next 10 years due to continuous growth rate. As of 2021, here are the top 10 ecommerce companies in the US by revenue: Amazon Walmart ..

[IT Note] Resolution of Digital TV What is the resolution of Digital TV? I've worked in video technology for analog TV as a hardware engineer, but it was coming digital revolution to video industry in late 1990. The DVD was fast, then digital TV tooked more time because of quite huge investment to all broadcasting system and commercial TV. The resolution of Digital TV can vary depending on the s..

[IT Note] Facebook: Profit model How does Facebook make money? Facebook has 10mil business owners and 3.1bil users, and there are Facebook ad platform to make 86bil revenue and 29bil net income as 34%. It is so profitable. Facebook makes money primarily through advertising revenue. Businesses can create targeted ads and promote their products or services to specific groups of Facebook users base..

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[IT Note] Top10 programming language in 2020 What are the list for top 10 best programming lanaguages in 2020? The below image shows that the top 3 are python, jave & c++, and the sub-total portions are 60.6%. The ranking of programming languages can vary based on various factors such as community support, ease of use, performance, availability of libraries, and more. However, based on the popul..

[IT Note] Burp Suite, Choice of security professionals The hacking or phishing are so popular news nowadays, and even critical financing, utility or military cyber crimes are almost everyday news. So what should we do as a member of IT business? I've looked many security standards, processes, rulesets or solutions, but I got only one answer. The security solutions are not finite, and it will be ..

[IT Note] SAP Hybris, eCommerce Engine Actually, Hybris can provide the A-Z about eCommerce, but why do I call eCommerce Engine? Maybe it will be depended on eCommerce architecture as hybrid system, so many companies want to use the existing ERP or other legacy system not to use pure Hybirs. Eventually, Hybris can cover the eCommerce engine and features, but not to be total corporate system. I j..

[IT Note] Splunk: Infra monitoring tool for Engineers I've worked in global e-commerce based on AWS & Akami CDN (Content Delivery Network), but it needs to prepare the stable monitoring tool for complex networks. Because the nature of Internet service is to operate 24/7, and its maintenance and operation is implementing or updating relatively short time with very big risk. The engineers like to ..