Introduction
The LTPDA package contains a sophisticated graphical programming interface which allows the user to construct and execute
data analysis pipelines entirely graphically.
The Simulink drawing interface is used to construct the analysis pipelines. The blocks that compose the analysis
pipelines are drawn from the LTPDA blockset. The LTPDA Analysis GUI then executes the commands represented by each
block in the appropriate order in order to achieve the desired analysis pipeline.
To start the LTPDA GUI use the command ltpdagui .
If there's no open LTPDA GUI window, the user will be asked to log in:

These data are not mandatory, as long as the user do not want to connect to a LTPDA Repository, for example to retrieve previous
analyses or to send in his own work. If the user just wants to use the software to compile trials or personal analyses, not meant to
be shared with others, he can leave these fields empty: the GUI will identify him as anonymous ('JohnDoe'), and this name
will be stored into every produced model.
On the contrary, if the GUI has to produce shared results, i.e. if the user want to submit/retrieve from an LTPDA Repository,
these login and password are those necessary to access the repository database. The user must possess a valid account, which
can be requested to the database administrator.
The username will be used also to ensure better traceability, storing the name itself into a short description created using
the LTPDA GUI.
However, it's possible at anytime to log off and re-log in, using different data, so it will be possible to type in valid
credentials to access a repository only when needed.
The first appearance of the GUI is:
The upper part of the window lists all the possible panels: clicking on the corresponding tab the proper panel
will be drawn below.
The help associated to each panel will be dealt into different pages.