Seismic database Network Access Point Paolo Diviacco Istituto

Seismic database Network Access Point Paolo Diviacco Istituto Nazionale di Oceanografia e di Geofisica Sperimentale pdiviacco@. ogs. trieste. it

Peculiarities of this data type, that do not fit the current paradigms • File size network traffic visualization • Sensitivity • Divergence from the GIS conceptual framework

Commercial systems exist but have several side effects from a Scientific Research point of view 1. 2. 3. 4. 5. Very expensive Prescriptive Complex data structure Need professional data manager Proprietary standards and codes (cannot be distributed)

Mixed Server side-client side paradigm (Data access control) Seismic Data: - remains within the server - processed within server - sends to the client only jpg, png, gif Positioning: - sent to the client (SVG) - Rendered by the client Based on opensource software only (PHP, Apache…)

SVG (Scalable Vector Graphycs) XML dialect that handles vectorial images (W 3 C standard == open-source) Vectorial: • objects remain objects (a road is not just some pixels in a bitmap) • objects can have “attributes” (like a name or a web link) • Objects can have “methods” (if I hover on an object something happens: e. g. the object’s name pops up somewhere) • Maps can be Interactive • Zoom without pixellation • Pan Rendered in your PC: Light-speed zoom, pan and web link

Metadata + Data Metadata + Interact with Data ! • Ease • Data quality • Serendipity

Advantages: • Protect intellectual property • Version Control • Smart Server-side caching system • Reduces network traffic • Resource consolidation • Easy maintenance

Initiatives based on SNAP http: //snap. ogs. trieste. it/SDLS http: //snap. ogs. trieste. it/ECORD http: //www. co 2 geonet. com/ http: //snap. ogs. trieste. it/OA http: //snap. ogs. trieste. it/GDLDB … we are looking for new partners : :

Latour & Callon (1986) 1. Problematization: conceiving the issue 2. Interessement: find people interested 3. Enrolment: create a “friendly” network 4. Mobilisation of allies: active support Reference = Linking Test = experiments = data Negotiation = messaging Meta. S NAP SNAP Network Aggregat Data Discovery Portal Computer Supported Collaborative Work (CSCW) toolkit Web based Seismic data Archive

= Tool to handle negotiation Computer Supported Collaborative Work (CSCW) toolkit S E R V E R User A Processing DATA User B User C User D Server side • • No file size limit No duplicazione dati File naming univoco per tutti Tutti possono accedere a tutte le info Version control Data Mining, Seach keyword. . Organizzazione in task

Meta. S NAP SNAP Network Aggregator What is a Data Discovery Portal (DDP): : It is a tool to find information in a distributed system In our view it is a tool to foster collaborative attitude getting together data owner and seeker Problematisation: define the problem DDP Interessement: find people interested Mutual benefit Data access control Enrolment: enrole them Mobilisation of allies: ask for active support

INTERNET • Metadata • Snapshots of seismic data • Navigation Meta. S NAP SNAP Network Aggregator

Remote nodes continue to live independently Users are enroled by remote node data administrator INTE RNET Meta. S NAP SNAP Network Aggregator

The whole picture : : Meta. S NAP SNAP Network Aggregator Data Discovery Portal Computer Supported Collaborative Work (CSCW) toolkit Web based Seismic data Archive