[10] [DFN[CoAP]] は、[[アプリケーションプロトコル]]の一種です。

* 関連

[11] 
[[HTTP]] の簡易版のように紹介されることもありますが、
[[HTTP]] とある程度機械的に変換可能というくらいで、
基本的に別の[[プロトコル]]です。

* 歴史

[1] [CITE@en[draft-ietf-core-coap-18 - Constrained Application Protocol (CoAP)]]
( ([TIME[2014-01-20 05:17:22 +09:00]] 版))
<http://tools.ietf.org/html/draft-ietf-core-coap-18>

[2] [CITE@en[draft-castellani-core-http-mapping-07 - Best Practices for HTTP-CoAP Mapping Implementation]]
( ([TIME[2013-12-15 02:22:14 +09:00]] 版))
<http://tools.ietf.org/html/draft-castellani-core-http-mapping-07>

[3] [CITE@en[RFC 7252 - The Constrained Application Protocol (CoAP)]]
( ([TIME[2014-06-27 00:59:37 +09:00]] 版))
<http://tools.ietf.org/html/rfc7252>

[4] [CITE@en[RFC 7390 - Group Communication for the Constrained Application Protocol (CoAP)]]
( ([TIME[2014-10-31 10:29:46 +09:00]] 版))
<https://tools.ietf.org/html/rfc7390>

[5] [CITE@en[RFC 7390 - Group Communication for the Constrained Application Protocol (CoAP)]]
([TIME[2015-02-11 03:16:25 +09:00]] 版)
<https://tools.ietf.org/html/rfc7390>

[6] [CITE@en[draft-hartke-core-coap-http-00 - Accessing HTTP resources over CoAP]]
([TIME[2016-01-07 13:58:23 +09:00]] 版)
<https://tools.ietf.org/html/draft-hartke-core-coap-http-00>

[7] [CITE@en[RFC 7967 - Constrained Application Protocol (CoAP) Option for No Server Response]]
([TIME[2016-09-05 21:25:53 +09:00]])
<https://tools.ietf.org/html/rfc7967>

[8] [CITE@en[RFC 8075 - Guidelines for Mapping Implementations: HTTP to the Constrained Application Protocol (CoAP)]]
([TIME[2017-03-01 17:25:23 +09:00]])
<https://tools.ietf.org/html/rfc8075>

[9] [CITE@en[RFC 7967 - Constrained Application Protocol (CoAP) Option for No Server Response]]
([TIME[2017-03-05 17:50:48 +09:00]])
<https://tools.ietf.org/html/rfc7967>