Blockchain is a distributed shared ledger storing data (or transactions) in a sequential chain of blocks. Each block contains a set of data (or transactions) created within a short span, and each block has its own unique fingerprint or hash value. These blocks are connected with the hash value of the previous block. Core Technologies …
Blockchain Fundamentals Read More »
161 total views
Blockchain solutions consist of various actors, and these actors interact with the underlying blockchain components. We will get familiarized with various actors who play different roles in the enterprise blockchain. The actors and components understanding will be the foundation for us to go deeper and learn more about an enterprise blockchain architecture. Actors in a …
Blockchain for Enterprise – Generic Concepts and Components Read More »
267 total views
Hyperledger is an open-source community focused on developing a suite of stable frameworks, tools, and libraries for enterprise-grade blockchain deployments. Hyperledger Fabric is an enterprise-grade, distributed ledger platform that offers modularity and versatility for a broad set of industry use cases. The modular architecture for Hyperledger Fabric accommodates the diversity of enterprise use cases through …
Blockchain for Enterprise – Hyperledger Fabric Read More »
322 total views
Blockchain Technology is mainly categorized into two categories Permissionless and permissioned blockchain. In the permissionless blockchain platform, anyone can join the network and obtain the services without proving their actual identity. However, in the permissioned blockchain platform, users need to prove their identity, and mostly they know each other by some means. Properties Permissionless Blockchain …
Blockchain for Enterprise – Permissionless vs. Permissioned Blockchains Read More »
126 total views
Blockchain is a design pattern made famous for its use in Bitcoin in 2009 by Satoshi Nakamoto. But, technology is compelling, and its uses go far beyond our imagination. It can be used in the following areas: Health Care, Financial Services, Supply Chain, Logistics, etc. We can reimagine the world’s most fundamental business interactions using …
Blockchain For Enterprise – Overview Read More »
236 total views
Software testing plays a crucial role in the software development life cycle. There are various levels of software testing, and levels are associated with the different phases of the software development life cycle. These are broadly classified into Unit Test, Integration Test, System Test, and Regression Test. Unit Testing is performed at the unit or …
Software Testing – Levels of Testing Read More »
84 total views
Verification is the process of determining whether the output of one phase of development conforms to its previous phase. It is concerned with the phase containment of errors. The code review, simulation, unit testing, and integration testing are the mechanisms through which verification can be performed. Validation is the process of determining whether a fully …
Software Testing – Verification & Validation Read More »
69 total views
Testing is a process to identify all defects or errors existing in a software product. However, after a substantial amount of testing, we can still not say that the software is error or bug-free. This is because the data domain of most software products is huge. Difference between error & bug or fault The faults …
Software Testing – Introduction Read More »
39 total views
We have seen Byzantine Generals’ Problem in the synchronous environment and how it achieves consensus using Lamport’s algorithm. In Lamport’s algorithm, if the system has f number of faulty lieutenants, out of 2*f + 1 number of lieutenants, or if the commander is faulty, the system achieves consensus in both cases. The real systems mostly …
Permissioned Blockchain – Practical Byzantine Fault Tolerance Algorithm Read More »
674 total views
The main idea behind this algorithm is: There is a commander and N lieutenants. The commander initiates the process and sends an initial message to all the lieutenants in the closed network. Later, each lieutenant forwards the value received from the commander to the other lieutenants except the sender. So at the end of the …
Permissioned Blockchain – Lamport Shoskat Pease Algorithm or Agreement Protocol Read More »
931 total views
