BAS/EUVE/0091/95
1:0 Transition Plan
Version 3
2 Nov 1995


To: CEA Management
From: B. Stroozas and G. Kaplan
CC: G. Bevan, D. Biroscak, D. Christian, M. Eckert, F. Girouard, A. Hopkins, P. Jelinsky, F. Kronberg, M. Lampton, P. Ringrose, C. Smith, J. Vallerga, L. Wong, and C. Jones (file)

Introduction

This memo outlines the plan (Version 3) for the 1:0 transition, the purpose of which is to eliminate the need for a payload operator to perform routine daily "shift" work in the ESOC. This memo focuses on actual implementation and is a direct result of the internal CEA review that was held on 13 Oct 1995. At this review ISO presented the detailed Version 2 of the 1:0 plan (BAS/EUVE/0088/95); the attendees then discussed the concept of the phased transition and the various "needs" and "wants" associated with each Phase. In the end everyone expressed general agreement with the plan, the only major issue of contention being the timeline for the transition. Roger expressed a great desire to complete the 1:0 transition before the end of this year so as not to interfere with the SCOTT efforts; to do this he proposed a schedule of mid-Nov for Phase 1 and mid-Dec for Phase 2.

Since this review, ISO and ISD have had numerous discussions to outline all of the relevant issues in an attempt to meet Roger's proposed schedule. The short answer is that we can meet the Phase 1 deadline. However, due to its more complicated nature, Phase 2 can not be completed in any safe and robust manner by Dec; therefore, we have added a Phase 1.5 to be completed in this time frame. This memo outlines exactly what we plan to do -- in terms of primary and secondary "needs" and "wants" (PN/SN/PW/SW) -- to implement 1:0. (Remember that a PN is an issue that affects instrument health and safety (H&S), a SN is a non-H&S issue that would yield major cost savings, a PW is an issue that would yield minor cost savings and/or improve the science return, and a SW is an issue of a purely streamlining nature.)

Phase 1

As a reminder, Phase 1 is the "minimal" zero-shift scenario, the purpose of which is to automate all essential instrument health and safety (H&S) telemetry monitoring. The particular focus here is eliminating the need for an operator to visually monitor any real-time passes during nominal operations. In the Phase 1 scenario an operator will continue to be needed to handle the routine daily "shift" console support duties. The completion of Phase 1 is scheduled for mid-Nov.

The following is a list of the the software-related issues to be completed for Phase 1:

The following are the non-software-related issues to be completed for Phase 1: All those "needs" and "wants" from the Version 2 1:0 plan that are not addressed above will be folded into the SCOTT plan for future attention.

Phase 2

As a reminder, Phase 2 is the "operational" zero-shift scenario, the purpose being to automate all daily console support duties. The particular focus here is to eliminate the need for an operator to perform "shift work", defined to be various routine duties that are performed on a daily basis. It is in Phase 2 that we actually eliminate the need for daily shift support (including on weekends) for nominal operations. The completion of Phase 2 is scheduled for Spring 1996.

In order to partially meet Roger's proposed schedule we have instituted an intermediate "Phase 1.5" scenario to be completed in mid-Dec. Phase 1.5 will contain some of the Phase 2 functionality -- those tasks that are most easily implemented in such a short time frame (see details below) -- and will allow us to decrease the amount of shift support required on a daily basis (including weekends).

The following are the software-related issues that need to be completed for Phase 2 (those identified for Phase 1.5 are identified as such):

The following are the non-software-related issues that need to be completed for for Phase 2: All "needs" and "wants" from the Version 2 plan that are not mentioned above will be folded into the SCOTT plan. The goal is to implement as much as possible for Phase 1.5 in order to allow for sufficient "shadow" time to properly verify everything before the actual Phase 2 transition.

Phase 3

There is no plan to implement a Phase 3 "full" zero-shift scenario before the SCOTT proposal takes affect. Therefore, all Phase 3 "needs" and "wants" will be folded into the SCOTT plan.

Summary

In summary, ISO and ISD will be working together to complete the 1:0 transition in a phased approach: Phase 1 by mid-Nov, an intermediate Phase 1.5 by mid-Dec, and Phase 2 by Spring 1996. A Phase 3 transition will be folded into the SCOTT plan, which will include all the unaddressed "needs" and "wants" outlined in the Version 2 1:0 plan that are not addressed in Phases 1 and 2.

By using such an incremental approach to 1:0, and remembering that the 3:1 took much longer than expected (the original problems were more difficult than expected and the proposed solutions were overly ambitious), software and procedural additions will be put into place each month as they become available. By doing the simple things first, we will gain tangible results quickly, but build an overall robust system in an organized manner. We will also be able to test, via an on-going simulation, the functionality of all the components before we begin to rely on them completely. We believe that by following the course outlined above we'll be doing 1:0 the right way -- one that is safe for the instruments and reasonable in relation to all other CEA work efforts.


Please send all comments to Brett A. Stroozas <bretts@cea.berkeley.edu>