Solution : https://service.sap.com/sap/support/notes/416772 (SAP Service marketplace login required)
Key words : 
extent management  contents    allocation type----------------------------------------------------------------, [permanent] [extent management local]   [uniform, apply toto extent management, locally            temporary   uniformshortened syntax, [permanent]  extent management dictionary, [extent management local]   [uniform], prerequisites solution tablespace types, temporary   extent management dictionary, sap bw standard installations, conventional dictionary-managed tablespaces
Related Notes : 
       
| 659946 | FAQ: Temporary tablespaces | 
| 626628 | ALE: No release of temporary segments | 
| 567745 | Composite note BW 3.x performance: DB-specific setting | 
| 443544 | IO Problems on AIX Filesystems | 
| 432377 | ODMA modifies Storage settings for Temporary TS | 
| 409376 | Use of locally managed tablespaces for SAP R/3 | 
| 387946 | USE OF LOCALLY MANAGED TABLESPACES FOR BW SYSTEMS | 
| 359835 | Design of the temporary tablespace in the BW System | 
| 216881 | SMON process slowly deletes temp. segments PSAPTEMP | 
| 214995 | Oracle locally managed tablespaces in the SAP environment | 
| 183842 | Shutdown (immediate) takes a very long time | 
| 183791 | Locking on temporary tablespace of Oracle | 
| 164925 | Storage parameter of tablespace PSAPTEMP |