cosmos · cwgoes · Aug 17, 2019 · Aug 17, 2019 · Aug 17, 2019 · Aug 17, 2019
diff --git a/README.md b/README.md
@@ -1,10 +1,12 @@
-# Interchain Standards Development
+# Interchain Standards
 
 ![banner](./assets/interchain-standards-image.jpg)
 
 ## Synopsis
 
-This repository is the canonical location for development and documentation of inter-chain standards utilised by the Cosmos network & interchain ecosystem. Initially it will be used to consolidate design documentation for the inter-blockchain communication protocol (IBC), encoding standards for Cosmos chains, and miscellaneous utilities such as off-chain message signing.
+This repository is the canonical location for development and documentation of inter-chain standards utilised by the Cosmos network & interchain ecosystem. It shall be used to consolidate design rationale, protocol semantics, and encoding descriptions for the inter-blockchain protocol (IBC), including both the core transport, authentication, & ordering layer (IBC/TAO) and the application layers describing packet encoding & processing semantics (IBC/APP). Contributions are welcome.
+
+The rendered, ordered set of all interchain standards written so far can be read as [a single PDF](./spec.pdf).
 
 ## Standardisation
 
@@ -14,19 +16,15 @@ To propose a new standard, [open an issue](https://github.com/cosmos/ics/issues/
 
 See [PROCESS.md](PROCESS.md) for a description of the standardisation process.
 
-Quick references & interchain standards can be read as [a single PDF](./spec.pdf).
-
 ## IBC Quick References
 
-The subject of most initial interchain standards is the inter-blockchain communication protocol, "IBC".
+If you are diving in or planning to review inter-blockchain communication protocol specifications, the following are required reading:
 
-If you are diving in or planning to review specifications, the following are recommended reading:
 - [IBC Architecture](./ibc/1_IBC_ARCHITECTURE.md)
 - [IBC Design Principles](./ibc/2_IBC_DESIGN_PRINCIPLES.md)
 - [IBC Terminology](./ibc/3_IBC_TERMINOLOGY.md)
 - [IBC Usecases](./ibc/4_IBC_USECASES.md)
 - [IBC Design Patterns](./ibc/5_IBC_DESIGN_PATTERNS.md)
-- [IBC specification progress tracking](https://github.com/cosmos/ics/issues/26)
 
 ## Interchain Standards
 
@@ -38,7 +36,7 @@ All standards in the "draft" stage are listed here in order of their ICS numbers
 | ------------------------------ | -------------------------- | ----- |
 | [1](spec/ics-001-ics-standard) | ICS Specification Standard | Draft |
 
-### IBC (Core)
+### IBC/TAO
 
 | Interchain Standard Number                          | Standard Title                     | Stage |
 | --------------------------------------------------- | ---------------------------------- | ----- |
@@ -52,7 +50,7 @@ All standards in the "draft" stage are listed here in order of their ICS numbers
 | [25](spec/ics-025-handler-interface)                | Handler Interface                  | Draft |
 | [26](spec/ics-026-relayer-module)                   | Relayer Module                     | Draft |
 
-### IBC (Application)
+### IBC/APP
 
 | Interchain Standard Number                 | Standard Title          | Stage |
 | ------------------------------------------ | ----------------------- | ----- |

diff --git a/spec/ics-001-ics-standard/README.md b/spec/ics-001-ics-standard/README.md
@@ -5,7 +5,7 @@ stage: draft
 category: meta
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-02-12
-modified: 2019-04-11
+modified: 2019-08-17
 ---
 
 ## What is an ICS?
@@ -49,9 +49,8 @@ See [README.md](../../README.md) for a description of the ICS acceptance stages.
 
 `category` - ICS category, one of the following:
 - `meta` - A standard about the ICS process
-- `ibc-core` - A standard about the inter-blockchain communication system core protocol.
-- `ibc-app` - A standard about the inter-blockchain communication system application layer.
-- `misc` - A standard about miscellaneous / auxiliary features, e.g. message signing
+- `IBC/TAO` - A standard about an inter-blockchain communication system core transport, authentication, and ordering layer protocol.
+- `IBC/APP` - A standard about an inter-blockchain communication system application layer protocol.
 
 `author` - ICS author(s) & contact information (in order of preference: email, GitHub handle, Twitter handle, other contact methods likely to elicit response).
            The first author is the primary "owner" of the ICS and is responsible for advancing it through the standardisation process.
@@ -165,6 +164,7 @@ the ICS process. Please direct all comments to the ICS repository maintainers.
 March 4th, 2019: Initial draft finished and submitted as a PR
 March 7th, 2019: Draft merged
 April 11th, 2019: Updates to pseudocode formatting, add definitions subsection
+August 17th, 2019: Clarifications to categories
 
 ## Copyright
 

diff --git a/spec/ics-002-client-semantics/README.md b/spec/ics-002-client-semantics/README.md
@@ -2,7 +2,7 @@
 ics: 2
 title: Client Semantics
 stage: draft
-category: ibc-core
+category: IBC/TAO
 requires: 23, 24
 required-by: 3
 author: Juwoon Yun <joon@tendermint.com>, Christopher Goes <cwgoes@tendermint.com>

diff --git a/spec/ics-003-connection-semantics/README.md b/spec/ics-003-connection-semantics/README.md
@@ -2,7 +2,7 @@
 ics: 3
 title: Connection Semantics
 stage: draft
-category: ibc-core
+category: IBC/TAO
 requires: 2, 23, 24
 required-by: 4, 25
 author: Christopher Goes <cwgoes@tendermint.com>, Juwoon Yun <joon@tendermint.com>

diff --git a/spec/ics-004-channel-and-packet-semantics/README.md b/spec/ics-004-channel-and-packet-semantics/README.md
@@ -2,7 +2,7 @@
 ics: 4
 title: Channel & Packet Semantics
 stage: draft
-category: ibc-core
+category: IBC/TAO
 requires: 2, 3, 5, 23, 24
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-03-07

diff --git a/spec/ics-018-relayer-algorithms/README.md b/spec/ics-018-relayer-algorithms/README.md
@@ -2,7 +2,7 @@
 ics: 18
 title: Relayer Algorithms
 stage: draft
-category: ibc-core
+category: IBC/TAO
 requires: 24, 25, 26
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-03-07

diff --git a/spec/ics-020-fungible-token-transfer/README.md b/spec/ics-020-fungible-token-transfer/README.md
@@ -2,7 +2,7 @@
 ics: 20
 title: Fungible Token Transfer
 stage: draft
-category: ibc-app
+category: IBC/APP
 requires: 25, 26
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-07-15 

diff --git a/spec/ics-023-vector-commitments/README.md b/spec/ics-023-vector-commitments/README.md
@@ -3,7 +3,7 @@ ics: 23
 title: Vector Commitments
 stage: draft
 required-by: 2, 3, 4
-category: ibc-core
+category: IBC/TAO
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-04-16
 modified: 2019-05-11

diff --git a/spec/ics-024-host-requirements/README.md b/spec/ics-024-host-requirements/README.md
@@ -2,7 +2,7 @@
 ics: 24
 title: Host State Machine Requirements
 stage: draft
-category: ibc-core
+category: IBC/TAO
 required-by: 2, 3, 4, 5, 18
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-04-16

diff --git a/spec/ics-025-handler-interface/README.md b/spec/ics-025-handler-interface/README.md
@@ -2,7 +2,7 @@
 ics: 25
 title: Handler Interface
 stage: draft
-category: ibc-core
+category: IBC/TAO
 requires: 2, 3, 4, 23, 24
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-04-23

diff --git a/spec/ics-026-relayer-module/README.md b/spec/ics-026-relayer-module/README.md
@@ -2,7 +2,7 @@
 ics: 26
 title: Relayer Module
 stage: Draft
-category: ibc-core
+category: IBC/TAO
 author: Christopher Goes <cwgoes@tendermint.com>
 created: 2019-06-09
 modified: 2019-07-29