第一步：了解CARSI项目、CARSI IdP和SP。
Step 1, Understand CARSI project, IdP and SP.
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Please refer to: https://www.carsi.edu.cn, CARSI基本概念 and CARSI介绍文档。
第二步：通过https://www.carsi.edu.cn/join_zh.htm，在线提交加入申请。
Step 2, Join through https://www.carsi.edu.cn/join_en.htm, submit online application
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This is the only way to join CARSI. Before applying online. Please contact 2 CARSI IdP members, a SP member must have 2 full members as the referrer, CARSI needs the confirmations from these 2 IdP members before approving your membership.
第三步：仔细阅读”SP会员申请表&承诺书“及相关材料，确认无误后，打印申请成功邮件的附件pdf，签字盖章后，按照邮件提示，邮寄纸质申请材料。
Step 3, Read "SP Member Requirements and Commitments" carefully, print(pdf), sign, seal the application form, send the hard copy to CARSI team.
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CARSI will review and approve your membership request once all the materials are received. At the current stage, CARSI only accepts the requests from applications serving Education and Research.
第四步：收到审核通过邮件后，开始SP接入技术调试。
Step 4, Once the membership is approved, debug with CARSI.
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Join your existing application into CARSI through CARSI SP OAuth gateway. SP+OAuth gateway acts as the Shibboleth SP, your application dose not need a dedicated Shibboleth SP. In this case the changes to your existing application are limited, your application should support OAuth 2.0 (acts as an OAuth client). Please refer to 3. 通过CARSI SP OAuth网关接入(Joining CARSI for OAuth SP) for details.
第五步：完成技术调试后，邮件联系CARSI联盟北大团队，申请复测及服务上线。联系邮箱：carsi@pku.edu.cn
Step 5, Once the debug process is complete, contcact CARSI team to apply a test and online operation. Email: carsi@pku.edu.cn
第六步：上线后无法再自助修改metadata（已加入eduGAIN的SP除外，CARSI每天自动从eduGAIN中获取最新的SP信息同步到本地metadata）及用户访问指南、IdP添加指南文档。如上线后确需更改，请联系CARSI团队。联系邮箱： 第六步：上线后无法再自助修改metadata（已加入eduGAIN的SP除外，CARSI每天自动从eduGAIN中获取最新的SP信息同步到本地metadata）及用户访问指南、IdP添加指南文档。如上线后确需更改，请联系CARSI团队。联系邮箱： carsi@pku.edu.cn
Step 6, Once the SP is official online, the SP metadata(except for the eduGAIN SPs, in which cases we sync fron eduGAIN everyday to refresh SP metadata info) and the documents are not allowed to be modified. For any special cases you really need to modify the SP info, please contact CARSI team through email: carsi@pku.edu.cn
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