Use case: start the TCS

Purpose: bring the TCS on-line to the rest of the observing system.

Actors: observer, TO or DE.

Outline: the user logs in to the TCS and start it up from its menu.

Typical course of events:

User action System response

1. User logs in to the telescope computer using the captive account that is standard for the telescope. TCS displays a menu of options.

2. User selects "START". TCS starts the default version of its applications. TCS assumes a version of the observing system that matches its own version. TCS D-task comes on-line to the CIA and DAS.

	User action	System response
1.	User logs in to the telescope computer using the captive account that is standard for the telescope.	TCS displays a menu of options.
2.	User selects "START".	TCS starts the default version of its applications. TCS assumes a version of the observing system that matches its own version. TCS D-task comes on-line to the CIA and DAS.