Yonas Tibebu

  Data visualization is the practice of translating information into a visual context, such as a map or graph, to make data easier for the human brain to understand and pull insights from. The main goal of data visualization is to make it easier to identify patterns, trends and outliers in large data sets. The term is often used interchangeably with others, including information graphics, information visualization and statistical graphics. Data visualization is one of the steps of the data science process, which states that after data has been collected, processed and modeled, it must be visualized for conclusions to be made. Data visualization is also an element of the broader data presentation architecture (DPA) discipline, which aims to identify, locate, manipulate, format and deliver data in the most efficient way possible. Data visualization is important for almost every career. It can be used by teachers to display student test results, by computer scientists...

Identity and access management (IAM) is a framework of business processes, policies and technologies that facilitates the management of electronic or digital identities. With an IAM framework in place, information technology (IT) managers can control user access to critical information within their organizations.   Systems used for IAM include single sign-on systems, two-factor authentication, multifactor authentication and privileged access management. These technologies also provide the ability to securely store identity and profile data as well as data governance functions to ensure that only data that is necessary and relevant is shared. IAM systems can be deployed on premises, provided by a third-party vendor through a cloud-based subscription model or deployed in a hybrid model.  On a fundamental level, IAM encompasses the following components: how individuals are identified in a system (understand the difference between identity management and authentic...

  A smart contract is a decentralized application that executes business logic in response to events. Smart contract execution can result in the exchange of money, delivery of services, unlocking of content protected by digital rights management or other types of data manipulation such as changing the name on a land title. Smart contracts can also be used to enforce privacy protection by, for example, facilitating the selective release of privacy-protected data to meet a specific request. There are a variety of architectures for how the programs underpinning smart contracts are developed, distributed, managed and updated. They can be stored as part of a blockchain or other distributed ledger technology, and integrated into various payment mechanisms and digital exchanges that can include bitcoin and other cryptocurrencies. Despite the name, smart contracts are not legally binding contracts. Their main function is to programmatically execute business logic th...