| Seamlessly integrated, but loosely coupled: building user interfaces from heterogeneous components Recent countries visiting this post |  |
 | 10 | United States |
 | 4 | |
 | 1 | China |
| Seamlessly integrated, but loosely coupled: building user interfaces from heterogeneous components Recent countries visiting this post | |
| 10 | United States |
| 4 | |
| 1 | China |