Many researches on context aware computing are carried out around the world. Among them, Context-Toolkit and Semantic Space provide separation of concerns between sensor and application. They make application developing easier. However, they have one problem that is lacking of simplicity in communication, compatibility and flexibility in building systems. To solve it, we propose one delivery and storage structure using standardized simple network management protocol which is useful to deliver, store and manage sensed information. We also verify that this architecture is efficient in wireless sensor network to deliver and store environmental information through an implementation of a SNMP agent. We confirm that this architecture with simplicity, compatibility and flexibility gives the efficiency to developing systems.