Projets-2016-2017-GeoDiff/SRS: Difference between revisions

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* Function: Compare two spatial data sets.
* Function: Compare two spatial data sets.
* Description: Computes a delta between two spatial data sets.
** Description: Computes a delta between two spatial data sets.
* Input: Two versions of the same spatial data set at different instants.
** Input: Two versions of the same spatial data set at different instants.
* Source: Imported by the user.
** Source: Imported by the user.
* Output: A visualization of the delta.
** Output: The delta.
* Destination: The screen.
** Destination: The memory.
* Action: The two sets are compared and a delta is produced. This delta is then shown to the user, highlighting the additions, deletions and modifications.
** Action: The two sets are compared and a delta is produced.
* Requirement: Two geographical data sets.
** Requirement: Two geographical data sets.
* Pre-condition: They represent the same data (at two different instants).
** Pre-condition: They represent the same data (at two different instants).
* Post-condition: The delta represents all differences.
** Post-condition: The delta represents all differences.
* Side-effects: None.
** Side-effects: Delta written into memory.


* Function: Display the delta.
** Description: Display the calculated delta on the screen.
** Input: The delta previously calculated.
** Source: The memory.
** Output: A visualization of the delta.
** Destination: The screen.
** Action: The delta is shown to the user, highlighting the additions, deletions and modifications.
** Requirement: The delta being computed in advance.
** Pre-condition: None.
** Post-condition: The delta is shown on screen.
** Side-effects: None.


* Function: Criteria selection.
** Description: Computes a delta between two spatial data sets.
** Input: The current list of criteria.
** Source: The memory.
** Output: The list of selected criteria.
** Destination: The memory.
** Action: The criteria list is updated.
** Requirement: None.
** Pre-condition: None.
** Post-condition: None.
** Side-effects: The new criteria list is written into memory.



==Non-Functional==
==Non-Functional==

Revision as of 16:25, 16 January 2017

Requirements

Functional

  • Function: Compare two spatial data sets.
    • Description: Computes a delta between two spatial data sets.
    • Input: Two versions of the same spatial data set at different instants.
    • Source: Imported by the user.
    • Output: The delta.
    • Destination: The memory.
    • Action: The two sets are compared and a delta is produced.
    • Requirement: Two geographical data sets.
    • Pre-condition: They represent the same data (at two different instants).
    • Post-condition: The delta represents all differences.
    • Side-effects: Delta written into memory.


  • Function: Display the delta.
    • Description: Display the calculated delta on the screen.
    • Input: The delta previously calculated.
    • Source: The memory.
    • Output: A visualization of the delta.
    • Destination: The screen.
    • Action: The delta is shown to the user, highlighting the additions, deletions and modifications.
    • Requirement: The delta being computed in advance.
    • Pre-condition: None.
    • Post-condition: The delta is shown on screen.
    • Side-effects: None.


  • Function: Criteria selection.
    • Description: Computes a delta between two spatial data sets.
    • Input: The current list of criteria.
    • Source: The memory.
    • Output: The list of selected criteria.
    • Destination: The memory.
    • Action: The criteria list is updated.
    • Requirement: None.
    • Pre-condition: None.
    • Post-condition: None.
    • Side-effects: The new criteria list is written into memory.


Non-Functional

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