Commit 6d4bf4e7 authored by pama-ibm's avatar pama-ibm Committed by Pam Andrejko
Browse files

[FAB-11102] Visual Vocab



Added images from our visual vocabulary
library to the Glossary & updated
definition for Block. 

Change-Id: I89f7694cd04c3828e3c48fdd2bb47b2178abcc85
Signed-off-by: default avatarpama-ibm <pama@ibm.com>
parent c4fe7e63
...@@ -49,17 +49,42 @@ on a per profile basis in the "Profiles" section. ...@@ -49,17 +49,42 @@ on a per profile basis in the "Profiles" section.
.. _Block: .. _Block:
Block Block
----- -----
An ordered set of transactions that is cryptographically linked to the .. figure:: ./glossary/glossary.block.png
preceding block(s) on a channel. :scale: 50 %
:align: right
:figwidth: 40 %
:alt: A Block
Block B1 is linked to block B0. Block B2 is linked to block B1.
=======
A block contains an ordered set of transactions. It is cryptographically linked
to the preceding block, and in turn it is linked to be subsequent blocks. The
first block in such a chain of blocks is called the **genesis block**. Blocks
are created by the ordering system, and validated by peers.
.. _Chain: .. _Chain:
Chain Chain
----- -----
.. figure:: ./glossary/glossary.blockchain.png
:scale: 75 %
:align: right
:figwidth: 40 %
:alt: Blockchain
Blockchain B contains blocks 0, 1, 2.
=======
The ledger's chain is a transaction log structured as hash-linked blocks of The ledger's chain is a transaction log structured as hash-linked blocks of
transactions. Peers receive blocks of transactions from the ordering service, mark transactions. Peers receive blocks of transactions from the ordering service, mark
the block's transactions as valid or invalid based on endorsement policies and the block's transactions as valid or invalid based on endorsement policies and
...@@ -75,9 +100,20 @@ See Smart-Contract_. ...@@ -75,9 +100,20 @@ See Smart-Contract_.
.. _Channel: .. _Channel:
Channel Channel
------- -------
.. figure:: ./glossary/glossary.channel.png
:scale: 30 %
:align: right
:figwidth: 40 %
:alt: A Channel
Channel C connects application A1, peer P2 and ordering service O1.
=======
A channel is a private blockchain overlay which allows for data A channel is a private blockchain overlay which allows for data
isolation and confidentiality. A channel-specific ledger is shared across the isolation and confidentiality. A channel-specific ledger is shared across the
peers in the channel, and transacting parties must be properly authenticated to peers in the channel, and transacting parties must be properly authenticated to
...@@ -262,9 +298,18 @@ the same organization. ...@@ -262,9 +298,18 @@ the same organization.
.. _Ledger: .. _Ledger:
Ledger Ledger
------ ------
THIS REQUIRES UPDATING
.. figure:: ./glossary/glossary.ledger.png
:scale: 25 %
:align: right
:figwidth: 20 %
:alt: A Ledger
A Ledger, 'L'
A ledger consists of two distinct, though related, parts -- a "blockchain" and A ledger consists of two distinct, though related, parts -- a "blockchain" and
the "state database", also known as "world state". Unlike other ledgers, the "state database", also known as "world state". Unlike other ledgers,
...@@ -294,6 +339,15 @@ See Organization_. ...@@ -294,6 +339,15 @@ See Organization_.
Membership Service Provider Membership Service Provider
--------------------------- ---------------------------
.. figure:: ./glossary/glossary.msp.png
:scale: 35 %
:align: right
:figwidth: 25 %
:alt: An MSP
An MSP, 'ORG.MSP'
The Membership Service Provider (MSP) refers to an abstract component of the The Membership Service Provider (MSP) refers to an abstract component of the
system that provides credentials to clients, and peers for them to participate system that provides credentials to clients, and peers for them to participate
in a Hyperledger Fabric network. Clients use these credentials to authenticate in a Hyperledger Fabric network. Clients use these credentials to authenticate
...@@ -329,7 +383,20 @@ identity material tied to each Member_. ...@@ -329,7 +383,20 @@ identity material tied to each Member_.
.. _Organization: .. _Organization:
Organization Organization
----------------- ------------
=====
.. figure:: ./glossary/glossary.organization.png
:scale: 25 %
:align: right
:figwidth: 20 %
:alt: An Organization
An organization, 'ORG'
Also known as "members", organizations are invited to join the blockchain network Also known as "members", organizations are invited to join the blockchain network
by a blockchain service provider. An organization is joined to a network by adding its by a blockchain service provider. An organization is joined to a network by adding its
Membership Service Provider (MSP_) to the network. The MSP defines how other members of the Membership Service Provider (MSP_) to the network. The MSP defines how other members of the
...@@ -346,6 +413,14 @@ will be part of a consortium. ...@@ -346,6 +413,14 @@ will be part of a consortium.
Peer Peer
---- ----
.. figure:: ./glossary/glossary.peer.png
:scale: 25 %
:align: right
:figwidth: 20 %
:alt: A Peer
A peer, 'P'
A network entity that maintains a ledger and runs chaincode containers in order to perform A network entity that maintains a ledger and runs chaincode containers in order to perform
read/write operations to the ledger. Peers are owned and maintained by members. read/write operations to the ledger. Peers are owned and maintained by members.
...@@ -467,6 +542,14 @@ channels relative to their aligned and varying business agendas. ...@@ -467,6 +542,14 @@ channels relative to their aligned and varying business agendas.
Transaction Transaction
----------- -----------
.. figure:: ./glossary/glossary.transaction.png
:scale: 30 %
:align: right
:figwidth: 20 %
:alt: A Transaction
A transaction, 'T'
Invoke or instantiate results that are submitted for ordering, validation, and commit. Invoke or instantiate results that are submitted for ordering, validation, and commit.
Invokes are requests to read/write data from the ledger. Instantiate is a request to Invokes are requests to read/write data from the ledger. Instantiate is a request to
start and initialize a chaincode on a channel. Application clients gather invoke or start and initialize a chaincode on a channel. Application clients gather invoke or
...@@ -478,6 +561,14 @@ into a transaction that is submitted for ordering, validation, and commit. ...@@ -478,6 +561,14 @@ into a transaction that is submitted for ordering, validation, and commit.
World State World State
----------- -----------
.. figure:: ./glossary/glossary.worldstate.png
:scale: 40 %
:align: right
:figwidth: 25 %
:alt: Current State
The World State, 'W'
Also known as the “current state”, the world state is a component of the Also known as the “current state”, the world state is a component of the
HyperLedger Fabric :ref:`Ledger`. The world state represents the latest values HyperLedger Fabric :ref:`Ledger`. The world state represents the latest values
for all keys included in the chain transaction log. Chaincode executes for all keys included in the chain transaction log. Chaincode executes
......
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