Certificates A certificate is a credential that you have the right to develop, a developer's identity, equivalent to an ID card, and a developer account with only one set. One set contains two, development and distribution. Where the development certificate provides developers with the ability to debug on a computer, multiple copies can be made for distribution to multiple computers. The distribution certificate gives developers the ability to publish iOS programs, which means that you have the power to publish to the App Store, which is only the first step of Long March. Only one, cannot make copies distributed to multiple computers.
Devices
Personally, iOS and Android in the development of the biggest difference, Android system by default open the real machine development debugging, anyone any one machine, no need any authentication, that is, you can debug the running program on the real machine. iOS no, you have to pay, and then you want to install the program of the device to register here! Can register 100 devices, in fact, the number is completely enough, but the fee is a threshold.
APP IDs
App ID is an app's identity, and each application has an identity that corresponds to one another. Create a new app ID.
Provisioning Portal
Provisioning Portal is an authorization file that defines what device can be installed to run what program. A profile consists of a device identity and a program identifier (APP ID). As can be seen, profile and certificate (certificate), also divided into development and distribution two kinds. Development is used to determine which program (APP ID) can be debugged on which device. Distribution is used to determine which program (APP ID) can be installed to which device to publish.
Reference
1. http://blog.csdn.net/load_life/article/details/7548614
Transfer from http://www.cnblogs.com/whyandinside/archive/2013/04/29/3050512.html