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Team Members: William Busby, Lindsey Gray, & David Meffe

Sponsor: Lockheed Martin Reconnaissance Systems

Bill Rawlings and Marvin Kliene

Lindsey Gray 2

Project Description

• Retrieval and display of XML formatted SAR metadata in intranet environment

• SAR metadata and imagery stored in a relational database

• XML tags for metadata

• Style sheets to display metadata

• Web-based retrieval and display

Lindsey Gray 3

Design Method• Incremental approach

– Process loops back to the requirements in the architectural, design, implement and testing stages

– Ensures the requirements are a part of each step in the procedure

Problem Statement

Requirements

Architecture

Design

Implementation

Testing

David Meffe 4

Physical ViewArchitecture is similar to basic Client/Server

David Meffe 5

Data Flow View

Architecture shows the Parsing/ Insertion of Flat Files Data into Database and Generation and Display of Data to Client

David Meffe 6

Logical View

Architecture shows access by an outside source that can view data other than a Web Browser

David Meffe 7

Functional ViewArchitecture is similar to Logical view and displays all external entities

William Busby 8

ER DiagramSARImage CNFData

1 imageID varchar2 1 cnfID varchar2cnfID varchar2 1 1 hdrID varchar2ifmuID varchar2 1 lat_map numberimuID varchar2 1 lon_map numberantID varchar2 1 alt_map number

… …

Image1 imageID varchar2 ANTData

image blob * antID varchar21 hdrID varchar2* time_tag number

HDRData roll_cmd numberhdrID varchar2 1 yaw_cmd numberc_4321 number range_gate numberpass_no numberfile_id numberrec_len number IFMUDatastruct_ver number * ifmuID varchar2tape_date date 1 hdrID varchar2rec_cnt number * time_tag number

… …

IMUData* imuID varchar21 hdrID varchar2* time_tag number

… …

William Busby 9

Acquiring the SAR Metadata

• Data stored in 4 binary files- CNF - IMU

- ANT - IFMU

• Parse files based on predefined structures

• 3 files contain multiple records- ANT - IMU - IFMU

• Insert data into database

William Busby 10

Extraction/Insertion ClassesSARImage CNFData AddNewData ParseData

Image img HeaderData hdr ParseData parse SARImage tmpDataCNFData cnf double lat_map InsertData insert DataInputStream dosANTData ant double lon_map String idIMUDAta imu … … SARImage parse(String file)IFMUData ifmu void main(String args[])

ANTDataHeaderData HeaderData hdr InsertData DataInputStream

int c_4321 int time_tag Connection con DataInputStream(FileInputStream fis)int pass_no float roll_cmd Statement pstmtint file_id float yaw_cmd int success int readInt()int rec_len int rng_gate float readFloat()int struct_ver int insert(SARImage data) double readDouble()char[12] tape_date char readChar()char[12] tape_time IMUData short readShort()int rec_cnt HeaderData hdr int teadUnsignedShort()

int time_tag void skipBytes(int num)int delta_v_x… …

IFMUDataHeaderData hdrint time_tagint latitude… …

William Busby 11

Database Connectivity: Connection Pool

• Handles the Connection pool to the Database. Limits the Max amount of connections

• Exception Handler handles exceptions thrown by the connection pool

William Busby 12

Database Connectivity: SQL Request

• Handles the creation and return of the Result set generated by the SQL statement

• SQL Exception handler handles the exceptions thrown by an invalid result set

Lindsey Gray 13

XML Schema

• Used to define XML document– What must the document contain– What type the data should be– Relationships (i.e. nesting)

• Used to validate the XML document created

Lindsey Gray 14

<complexType name = “antType”><element name = “time_tag” type = “integer” /><element name = “roll_cmd” type = “float” /><element name = “yaw_cmd” type = “float” /><element name = “new_range_gate” type = “integer” /></complexType>

<element name=”Image” type=”JavaXML:SARImageType” />

 <complexType name = “SARImageType”><element name = “IMAGE_ID” type = “string” /><element name = “pass_no” type = “integer” /><element name = “file_id” type = “integer” /><element name = “rec_len” type = “integer” /><element name = “tape_date” type = “string” /><element name = “tape_time” type = “string” /><element name = “rec_cnt” type = “integer” /><element name = “cnf” type= “JavaXML:cnfType” /><element name = “ifmu” type = “JavaXML:ifmuType” /><element name = “ant” type = “JavaXML:antType” /><element name = “imu” type = “JavaXML:imuType” /></complexType>

Lindsey Gray 15

XML Document Generation

• Create XML document from database

• Validate against schemaCreateXMLDoc

outputFile

printSARImageType(String)printCNFType(String)printIFMUType(String)printANTType(String)printIMUType(String)validate(Schema)

Lindsey Gray 16

XSL

• Will be used to transform XML to HTML

• Still learning– http://www.w3schools.com/xsl/

Lindsey Gray 17

Test Plan

• Test each module separately

• Slowly integrate with other modules

• Test again with other pieces in place

• User testing– Revisions integrated– More testing

William Busby 18

Schedule

• Main Tasks

• Gantt Chart

• Critical Path

• Current Status

William Busby 19

Main Tasks

• XML element specification• Extract data• Oracle 8i database• DB connection pool & SQL management• XML document generation• XSL style sheets• HTML pages – entry & online help• Servlet filtering/handling

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William Busby 21

Critical Path

William Busby 22

Current Status

• Overall on schedule– Slightly behind on some– Slightly ahead on others

• Schedule needs adjustments– Too compacted– Only 3 people, but more than 3 concurrent tasks

• Room to work with– Current schedule has project finishing 3/30

QUESTIONS