Revolutionary Times
Big Tech, Big Profits

Big Tech, Big Profits

Currency Club

Currency Club

2013: A Year of CEO Changes

2013: A Year of CEO Changes

Visual Guide to NoSQL Systems

Visual Guide to NoSQL Systems

The Infrastructure Triangle

The Infrastructure Triangle

The illusion of choice

The illusion of choice

Where to live?

Where to live?

Bad Trades’ Ripple Effect

Bad Trades’ Ripple Effect

The 6 Principles of Persuasion

Persuasion works by appealing to certain deeply rooted human responses. Experiments in social psychology by Robert Cialdini and others have identified six of those responses, which Cialdini initially described in his book Influence.

Liking

If people like you—because they sense that you like them, or because of things you have in common—they’re more apt to say yes to you.

Reciprocity

People tend to return favors. If you help people, they’ll help you. If you behave in a certain way (cooperatively, for example), they’ll respond in kind.

Social proof

People will do things they see other people doing—especially if those people seem similar to them.

Commitment and consistency

People want to be consistent, or at least to appear to be. If they make a public, voluntary commitment, they’ll try to follow through.

Authority

People defer to experts and to those in positions of authority (and typically underestimate their tendency to do so).

Scarcity

People value things more if they perceive them to be scarce.

Financing Models

Financing Models

Disruptive Technologies

Disruptive Technologies

Billion-dollar Tumblr deal

Billion-dollar Tumblr deal

10 Usability Heuristics for User Interface Design

~ The 10 most general principles for interaction design. They are called “heuristics” because they are more in the nature of rules of thumb than specific usability guidelines. ~


1. Visibility of system status. The system should always keep users informed about what is going on, through appropriate feedback within reasonable time. 

2. Match between system and the real world. The system should speak the users’ language, with words, phrases and concepts familiar to the user, rather than system-oriented terms. Follow real-world conventions, making information appear in a natural and logical order. 

3. User control and freedom. Users often choose system functions by mistake and will need a clearly marked “emergency exit” to leave the unwanted state without having to go through an extended dialogue. Support undo and redo. 

4. Consistency and standards. Users should not have to wonder whether different words, situations, or actions mean the same thing. Follow platform conventions. 

5. Error prevention. Even better than good error messages is a careful design which prevents a problem from occurring in the first place. Either eliminate error-prone conditions or check for them and present users with a confirmation option before they commit to the action. 

6. Recognition rather than recall. Minimize the user’s memory load by making objects, actions, and options visible. The user should not have to remember information from one part of the dialogue to another. Instructions for use of the system should be visible or easily retrievable whenever appropriate. 

7. Flexibility and efficiency of use. Accelerators — unseen by the novice user — may often speed up the interaction for the expert user such that the system can cater to both inexperienced and experienced users. Allow users to tailor frequent actions. 

8. Aesthetic and minimalist design. Dialogues should not contain information which is irrelevant or rarely needed. Every extra unit of information in a dialogue competes with the relevant units of information and diminishes their relative visibility. 

9. Help users recognize, diagnose, and recover from errors. Error messages should be expressed in plain language (no codes), precisely indicate the problem, and constructively suggest a solution.

10. Help and documentation. Even though it is better if the system can be used without documentation, it may be necessary to provide help and documentation. Any such information should be easy to search, focused on the user’s task, list concrete steps to be carried out, and not be too large.