Monthly Archives March 2010

You cannot get everything! Specially, out of distributed system!

CAP theorem (Brewer’s theorem) :It is impossible for distributed computer system to simultaneously provide all three of the following guarantees: Consistency: There are many way to describe it * All nodes see the same data at the same time.* Once a state is stored in the system, it will report the same state in every [...]

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Universe as a computation device!

Here is quote from paper published by Seth Lloyd of MIT in 2001. “Merely by existing, all physical systems register information. And by evolving dynamically in time, they transform and process that information. The laws of physics determine the amount of information that a physical system can register (number of bits) and the number of [...]

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Key Factors for Effective Dev Teams, according to me!

* Good communication* Good sharing of tangible and intangible resources* Learning from own and other team member’s mistake* Good leader* Enough resources to work with* Good Commitment level* Openness in environment

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Ten rules of lean production

1. Eliminate waste 2. Minimize inventory 3. Maximize flow 4. Pull production from customer demand 5. Meet customer requirements 6. Do it right the first time 7. Empower workers 8. Design for rapid changeover 9. Partner with suppliers 10. Create a culture of continuous improvement

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What can be termed ‘abnormal’?

There are many ways: Normative abnormalityWe go by ‘Nothing is normal as nothing is perfect.’ Only perfect is 100% normal. Farther you are from ideal, more abnormal you are.Clinical abnormalityWhen things are beyond certain level of irrationality, bizarreness, poor adapatation, unorganization, ineffectiveness.Cultural abnormalityWhen things not considered ‘normal’ by a culture.Statistical abnormalityThis one is based on [...]

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