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Dalam mendesain user interface untuk pengguna atau client, tentunya ada beberapa hal yang perlu diperhatikan. Mengapa? Karena tentunya anda tidak ingin pengguna yang menggunakan produk anda mengalami kesulitan dalam menggunakan produk buatan anda.
Nah untuk itulah prinsip desain user interface ini diperkenalkan oleh Larry Constantine and Lucy Lockwood. Berikut merupakan prinsip dari desain user interface.

1. The structure principle

Tampilan desain untuk user interface harus diatur sesuai fungsinya agar lebih terorganisir. Tampilan yang dibuat juga harus jelas, konsisten dan dapat dipahami oleh pengguna. Misalnya seperti menaruh beberapa hal yang saling terkait fungsinya dan memisahkan yang tidak ada hubungannya. Prinsip struktur ini saling berkaitan dengan keseluruhan arsitektur user interface.

2. The simplicity principle

Desain yang dibuat haruslah sederhana, mudah digunakan, dan dapat berkomunikasi dengan jelas dengan bahasa yang dipahami oleh penggunanya.

3. The visibility principle

Desain yang kita buat sebaiknya dibekali dengan pilihan dan memenuhi kebutuhan pengguna dalam mengerjakan suatu tugas tanpa membuat pengguna kesusahan dengan banyaknya informasi yang sebenarnya tidak diperlukan.

4. The feedback principle

Desain yang baik harus memberikan informasi yang jelas kepada setiap hal yang dilakukan pengguna, seperti ketika menunjukan error ketika ada langkah yang bermasalah, menunjukan keterangan sukses jika langkah yang dilakukan pengguna sudah benar dan lain sebagainya. Intinya harus ada komunikasi yang jelas antara sistem dan pengguna.

5. The tolerance principle

Desain sebaiknya dibuat dengan fleksibel dan toleran, seperti dapat mengurangi kesalahan pengguna dengan menggunakan fitur undo atau redo dan juga mencegah munculnya error.

6. The reuse principle 

Prinsip ini mengharuskan pengguna untuk menggunakan kembali komponen internal maupun eksternal. Hal ini dikhususkan agar pengguna tidak perlu mengingat kembali kebiasaan atau input yang telah dilakukan berulang ulang.

Nah kurang lebih seperti itulah prinsip dalam membuat desain user interface yang baik dan efektif. Tentunya ketika anda akan mengembangkan sebuah desain user interface maka dapat menggunakan prinsip diatas sebagai acuan untuk menghasilkan desain yang baik dan mudah digunakan oleh pengguna. Sekian ulasan kali ini, semoga bermanfaat :D

Berbicara mengenai web design, tentunya kita sudah tak asing dengan yang namanya HTML, CSS, PHP dan bahasa lainnya untuk mengembangkan sebuah website. Website sendiri saat ini sudah berkembang pesat dibandingkan pendahulunya.

Perkembangan HTML

Perkembangan Flash dan Javascript

Perkembangan CSS

Perkembangan Web Dinamis

Web 2.0 

Mobile Web

Rosario Castellanos, (born May 25, 1925, Mexico City, Mexico—died August 7, 1974, Tel Aviv, Israel) novelist, short-story writer, poet, essayist, and diplomat who was probably the most important Mexican woman writer of the 20th century. Her 1950 master’s thesis, Sobre cultura femenina (“On Feminine Culture”), became a turning point for modern Mexican women writers, who found in it a profound call to self-awareness.

Castellanos was the daughter of landowners from Chiapas and spent her formative years on a ranch near the Guatemalan border. She received an excellent education in Mexico and Europe. From 1960 to 1966 she was press director for the National Autonomous University of Mexico. Afterward, she held several visiting professorships in the United States and then returned to Mexico to accept the chair in comparative literature at the National Autonomous University. In 1971 Castellanos became Mexico’sambassador to Israel, and she died there three years later, accidentally electrocuted in her Tel Aviv home.

Castellanos was passionately interested in the works of two women writers: Saint Teresa of Ávila, the Spanish 16th-century religious activist and author, and Sor Juana Inés de la Cruz, the Mexican nun-poet of the 17th century. Profoundly Catholic, her own verse also recalls the poetry of Saint John of the Cross. It expresses at once indignation at social injustice and ecstasy before the beauty of creation. Castellanos’s poetry is as powerful and original as that of her contemporary Octavio Paz, although she is best known for her prose works. Her most famous novel, Oficio de tinieblas (1962; The Book of Lamentations), re-creates an Indian rebellion that occurred in the city of San Cristóbal de las Casas in the 19th century, but Castellanos sets it in the 1930s, when her own family suffered from the reforms brought about by Lázaro Cárdenas del Rio in the wake of the Mexican Revolution. Castellanos donated the land she inherited to the destitute Indians of Chiapas.

In 1972 Castellanos published her collected poetry in a volume entitled Poesía no eres tú (“Poetry Is Not You”; Eng. trans., The Selected Poems, by Magda Bogin), a polemical allusion to a well-known verse by Spanish Romantic poet Gustavo Adolfo Bécquer, in which he tells his beloved that she is poetry.

Infotechboltim.org - Halaman utama Google pada Selasa (24/5/2016) dihiasi dengan doodle untuk memperingati hari ulang tahun ke-117 dari petenis wanita asal Perancis, Suzanne Lenglen. 

Google membuat animasi gerakan Suzanne Lenglen yang sedang bermain tenis. Latar belakang doodle ini didominasi dengan warna dasar hijau, seperti lapangan rumput tenis. Di bagian belakang terdapat tulisan Google.

Siapa sebenarnya Suzanne Lenglen yang dijadikan Google Doodle hari ini?

Jika mendengar soal tenis wanita, siapa yang ada di benak Anda saat ini? Sebagian besar dari Anda, mungkin, akan menyebut nama Serena Williams atau Maria Sharapova. Nah, Suzanne Lenglen itu bisa dikatakan salah satu juara tenis yang paling berpengaruh, jauh sebelum dua petenis wanita tersebut.

Sebagaimana KompasTekno rangkum dari Mirror, selama karirnya, dari 1914 hingga 1926, Suzanne Lenglen berhasil mendapatkan 31 gelar kejuaraan dan mendominasi dunia tenis wanita. 

Petenis flamboyan ini dinobatkan menjadi selebrita wanita tenis pertama. Gayanya yang keras bahkan mampu mengubah dunia olahraga tenis kala itu.

"Dia meruntuhkan batasan melalui permainannya yang penuh gairah, pakaian yang tidak tradisional, dan cara berdiri yang melawan formalitas olahraga tersebut," tulis Google.

Pada tahun 1925, Suzanne Lenglen membintangi film bisu pendek mengenai cara bermain tenis. 

Karir Suzanne Lenglen harus berakhir pada tahun 1938. Petenis wanita yang disegani itu berhenti karena penyakit leukemia yang dideritanya. Tiga minggu setelah didiagnosa, ia menjadi buta.

Suzanne Lenglen meninggal pada 4 Juli 1938.

Despite browsing incognito, blocking advertisements, or hiding your tracks, some websites monitor and track your every move online using a new web-tracking technique called Audio Fingerprinting.

This new fingerprinting technique can be utilized by technology and marketing companies to deliver targeted advertisements as well as by law enforcement to unmask VPN or Anonymous users, without even decrypting the traffic.

Researchers at Princeton University have conducted a massive privacy survey and discovered that Google, through its multiple domains, is tracking users on nearly 80 percent of all Top 1 Million Domains using the variety of tracking and identification techniques.

Out of them, the newest tracking technology unearthed by the researchers is the one based on fingerprinting a machine’s audio stack through the AudioContext API.

"All of the top five third-parties, as well as 12 of the top 20, are Google-owned domains," the researchers note. "In fact, Google, Facebook, and Twitter are the only third-party entities present on more than 10 percent of sites."

The AudioContext API is not collecting audio played or recorded on a machine, but rather harvesting the audio signals of the each machine that is then using it to reveal unique browser and device combinations.

The method has nothing to do with the device's microphone, as it relies on the way a signal is processed.

A third-party tracker uses the AudioContext API to send low-frequency sounds to a user's computer and then measures how the computer processes the data, creating a unique fingerprint based on the hardware and software capabilities of the user's computer.

Here's what the researchers explain:

"A script from the company Liverail checks for the existence of an AudioContext and OscillatorNode to add a single bit of information to a broader fingerprint. More sophisticated scripts process an audio signal generated with an OscillatorNode to fingerprint the device. This technique appears conceptually similar to that of canvas fingerprinting. Audio signals processed on different machines or browsers may have slight differences due to hardware or software differences between the machines while the same combination of machine and browser will produce the same output."

Check Your Audio Fingerprint

Hacking into computer, networks and websites could easily land you in jail. But what if you could freely test and practice your hacking skills in a legally safe environment?

Facebook just open-sourced its Capture The Flag (CTF) platform to encourage students as well as developers to learn about cyber security and secure coding practices. Capture the Flag hacking competitions are conducted at various cyber security events and conferences, including Def Con, in order to highlight the real-world exploits and cyber attacks.

The CTF program is an effective way of identifying young people with exceptional computer skills, as well as teaching beginners about common and advanced exploitation techniques to ensure they develop secure programs that cannot be easily compromised. Since 2013, Facebook has itself hosted CTF competitions at events across the world and now, it is opening the platform to masses by releasing its source code on GitHub.

Hacking is often one of the most misinterpreted words in computer lexicon. Hacking was a term that originated in 1990s and is associated with the unauthorized use of computer and network resources. By definition, hacking is the practice of altering the features of a system, to accomplish a goal which is not in scope of the purpose of its creation. However, hacking has more to it than just altering a code, it is a high paying career choice with huge reputation for successful hackers.

If you are a beginner and need to learn how to hack, the information provided in this post can surely help you out.
How can I Learn to Hack as a newbie?

If you are a beginner and have little or no knowledge of hacking, the best way to learn is to start from the basics rather than undertake complicated hacking assignment. It is always advisable to think and start small in hacking. Instead try to spend time in mastering the basic concepts of hacking so you can learn advanced hacking methods later.

To successfully learn how to hack, the following are some of the steps that you can take:
Step-1: Explore the Fundamentals

Know you computer, this is that basic thing you should start of with. You can start off by exploring the fundamental concepts such as operating system basics (Windows and Linux), computer networking, network protocols, firewalls and how each of these stuffs work etc. A little theoretical knowledge of the above is a must for you to progress as hacker.

You can make use of resources and websites on the Internet to source your knowledge. If you are more interested in exploring any of these stuffs in detail, you can always pick up a book that details the particular aspect of computing.
Step-2: Find a Good Source that will Teach How to Hack in Simple Steps

Hacking is a self learning exercise but you wont progress until you have a good master. Most of the times, the information available on the Internet is fragmented or too geeky. A good book or a teacher can lay down very short term goals for you. A book is always better to teach you how to hack in a step-by-step easy to follow manner. If you are a newbie, this book called Hacking Secrets Exposed is a perfect source for learning how to hack.
Step-3: Learn Programming

If you really want to hack like an elite hacker, programming is something that you can’t skip. Even in programming there are several languages with ready made tools and programs to help you hack like the Kali Linux.

Iis always better to have some basic understanding of programming languages like HTML, PHP and JavsScript so that you will be in a better position to figure out how they work and what’s going on in the background. Nevertheless, there are hackers who are successful and they dont know how to program at all.
How Long does it Take to Learn Hacking?

Hacking is all about dedication and putting long hours. How long will it take for you to learn hacking is the answer you yourself will know once you proceed using the above three steps.

To remember, hacking requires knowledge, skills, creativity, dedication and of course the time. It also requires the nose to spot anything that is out of context. For your hack attempts to be successful, you should adopt a hacker’s mindset and start thinking just like the hacker.

To become a good hacker you need to know your goals. Finding flaws is most difficult if you start with multiple objectives. Learn to track a single goal till it is accomplished before you move on to the next one.

Looks like the Bangladesh Bank $80 million hack has opened up a pandora’s box for Swift, the global interbank transaction gateway. Cyber-criminals stole about $12 million from an Ecuador bank in a 2015 heist which is similar to the latest $80 million Bangladesh Bank and Vietnamese bank hack.

After the Bangladesh Bank hack, Swift authorities went on record to say that there was nothing wrong with the interbank gateway. However, as the investigations into Bangladesh Bank progressed it became clear that the hackers who were after $1 billion in deposits, used Swift vulnerabilities for the hack.

Now a Ecuador bank says that it was hacked similarly in 2015 and the hackers managed to steal $12 million in that attack. Banco del Austro SA said in a lawsuit filed in New York against Wells Fargo & Co. that hackers got access to the codes the bank uses to move money via Swift, the global interbank network, and used them to transfer funds from the U.S. bank.

Though the attack happened more than 15 months ago, a Swift spokeswoman told Reuters that the firm had only just found out about it, suggesting banks have not been sharing details of such attacks with the cooperative. A Wells Fargo representative did not immediately return a call seeking comment.

Another Swift hack victim, the Vietnam’s Tien Phong Commercial Joint Stock Bank, known as TPBank, informed the country’s regulators this week that it had fended off a fraudulent transfer request late last year for more than 1 million euros ($1.1 million) that came through a third-party service that the bank used to connect to the Swift system.

The spate of banking hack attacks have sparked concerns within global banks, some of which are pressing Swift to shore up security at its 11,000 members.

“We specifically remind all users to respect their obligations to immediately inform Swift of any suspected fraudulent use of their institution’s Swift connectivity,” the firm said Friday in a statement. “We are currently working to further reinforce our support to customers in securing their access to the Swift network.”

NASA's SDO Solar Spacecraft sees the Sun Unleash a Stunning Explosion
You can watch the video here:



NASA’s Solar Dynamics Observatory, or SDO, spacecraft observed an arching eruption on the sun. The eruption ultimately escaped the sun's gravity, growing into a substantial coronal mass ejection—a giant cloud of solar material traveling through space. The spacecraft, which watches the sun constantly, captured images of the event in extreme ultraviolet wavelengths. The images allow scientists to track the movement of material released from the sun and into space where, if directed toward Earth, it can affect electronics on satellites, GPS communications or even utility grids on the ground.

Clip credit: NASA's Goddard Space Flight Center
Video and images courtesy of NASA/SDO

Thank you so much!