| WBS |
Name |
Dictionary |
BOE |
Final Status Notes |
| 26.4.6.4 |
Tevatron BPM Upgrade |
The scope of
the Tevatron BPM project is defined in the Tevatron Beam Position
Monitor Upgrade Requirements document version 3
dated September 10, 2003. The project WBS estimates are based on
the scope. The WBS is divided into five major components. First
four components, design, fabrication, installation, and commissioning,
are mapped to four system life cycle phases. Each of these four
life cycle phases is further divided into four subsystems, electronics,
front-end Data Acquisition (DAQ) software, on-line software, and
off-line software. Electronics subsystem addresses the hardware
in the service buildings connected to the BPM pickups in the Tevtron
tunnel underground. The electronic hardware acquisition is the major
M&S cost for the project. Front-end (DAQ) system, based on VxWorks,
real-time operating system, communicates to the hardware, acquires
BPM/BLM signals and passes on to the on-line system with minimal
processing. This subsystem is also responsible for managing various
timing, calibration and diagnostic issues. The fifth component,
project management, addresses the project management and coordination
efforts throughout the project life cycle that are independent of
phases. Physicists and engineers assigned to this WBS also perform
investigative measurements, refine requirements using beam studies
and other related activities, and provide inputs to other team members
as SME. |
The basis of
estimate does not include any divisional infrastructure costs or
travel costs. Detailed basis of M&S cost estimation are described
in following lower level items only when a particular WBS has a
task with associated M&S. |
End of May 2004 changes to V3.0 WBS
baseline: We made changes to reflect:
1. Delay in the delivery dates of EchoTek boards.
2. Installation during the shutdown (begins Aug 23)
3. Commissioning starts when the beam returns (Nov 22)
4. Length of commissioning is not very well known and is driven
not by the TeV BPM upgrade but by the operational
requirements of the Tevatron. Commissioning with take approximately
two months.
BOE changed significantly from
the earlier version mainly because of the efforts due to extended
project schedule. There was no significant changes in the fixed
cost part of the project.
End of July 2004 changes to V3.1 WBS baseline:
This includes changes in the R2LU WBS numbering system and split
up of the System Fabrication task into two tasks: elctronics and
software. The Laboratory project accounting system was realigned
during July 2004 to reflect project WBS.
End of August 2004 Changes to V3.1 WBS: By the
end of August, it is evident that there is a delay of the production
schedule for Echotek boards. The schedule for production of Timing
cards and Filter cards are also delayed. Consequently, fornt-end
software development was also delayed. The man-power assignments
were realigned to reflect the above schedule changes, resulting
an increase of approximately 4.1 FTE Year or an equivalent of
$293,000.
|
| 26.4.6.4.1 |
Tev BPM system
design |
Tasks for the
design phase include investigation of existing and new methods,
design, and prototyping, as applicable, for the new electronics,
front-end data acquisition software, on-line software, and offline
software. The design and implementation of test stands and deployment
of additional infrastructure are part of this section. |
- |
|
| 26.4.6.4.1.1 |
Electronics design |
Main task in
this WBS is the design of the core electronics of the new BPM system
to meet required capabilities. Core electronic technical choice
review and electronic design review are parts of this WBS. Design
of the timing card and diagnostic/calibration card decision is made
based on the decision on core electronics. Prototyping the interface
of the existing BLM system to the new BPM system is part of this
WBS. However, this does not include any additional work necessary
to accommodate any enhanced BLM system that may become available
in the future. Preparing the cabling of the BPM pickups to accept
pbar signals as well as making necessary offset measurements are
part of this WBS. Experimentation with multiple core electronics
options at the Tevatron and FCC are included. Network capabilities
for ACNET access from FCC are provided. System commissioning plan,
synchronized with the shutdown schedule is initiated. Significant
amount of investigational work is done during this phase. |
Estimated cost
of the labor is calculated by the subsystem manager using historical
data in similar projects. Contractor services for electrical work
and the cost of components was used to estimate the cost of preparing
BPM pickup cables in the tunnel for the new system. No additional
cost for test stand and electronics is necessary since these items
are borrowed from other groups. |
June 16 Milestone for first Echotek Modified board
schedule slipped. First informal prototype arrived on June 29.
However, the official prototype arrived on August 23. A prototype
crate was installed in the A3 building on ?
|
| 26.4.6.4.1.2 |
Front-end DAQ
SW design |
Main task in
this WBS is the design of the frontend software that communicates
with the electronics and online software. |
Deliverables
for this WBS includes both specification and design of the front-end
data acquisition software including necessary reviews. The specification
includes details of expected operating mode and interactions to
the BPM and BLM hardware, buffers, ACNET name mapping, calibration
and diagnostic procedure etc. The software design document is a
part of this WBS. The estimate is based on the time spent by CPs
and EEs using historical data available to the subsystem manger
from similar projects. Labor cost for Sees involved in specification
is also included. |
|
| 26.4.6.4.1.3 |
Online SW design |
Deliverable for
this WBS is based on the SW design. |
The subsystem
manger, who is also the SME on the topic, provides the estimate.
|
|
| 26.4.6.4.1.4 |
Offline SW design |
Since the new
BPM system with modern hardware will have significantly enhanced
capabilities, new algorithms are needed to take advantage of the
better data, particularly, to address the separation and presentation
of proton and Pbar signals. The scope of off-line software design
includes the investigational analysis needed along with the design
of the off-line software. . The off-line software specification
is the main deliverable for this WBS. The labor estimate is based
on the past estimates of effort for similar work. |
| 26.4.6.4.2 |
Tev BPM: Requirements
Review (Milestone) |
This milestone
WBS indicates the acceptance of the Tevatron BPM Requirements document
by the RUNII project manager and the AD division director. It is
also flags the beginning of the formal part of the project. |
No BOE |
|
| 26.4.6.4.3 |
Tev BPM system
fabrication |
System fabrication
WBS covers traditional system implementation activities related
to both software and hardware. Iterative unit testing and some integration
testing for the software and hardware at teststands and, possibly,
at selected houses of the Tevatron are components of this WBS. |
- |
|
| 26.4.6.4.3.1 |
Electronics
fabrication |
This
WBS includes the placement of purchase orders, prototype testing
for the vendor delivered boards, purchase of components, prototyping
and assembly of boards designed in-house. This WBS also includes
tasks of layout, prototype testing of boards from vendor and/or
assembly houses. |
The
estimates for the purchase orders are based on 31 fully loaded BPM
systems, 27 systems for service buildings around the Tevatron, two
systems for test stands at Tevatron and FCC, and two spare sets.
The major cost for the project is for the Digital Receiver boards.
Vendor quotes from the recycler project is used. The decision to
use VME crates with MVME 2434 processor boards with VxWorks real
time operating system is made for the project. Estimates for these
items are derived from previously available information within the
laboratory. Since adequate experience with this environment is available
within AD and CD divisions, labor cost estimate for software and
hardware is reliable. Off-the-shelf components for BLM and components
for timing/calibration/diagnostic cards are calculated using available
pricing. Cost for cabling, connectors etc. are estimated and included
in the consolidated crate cost. |
|
|
| 26.4.6.4.3.2 |
Front
end DAQ SW fabrication |
This
WBS addresses implementation and coding of software, including the
implementation of the APIs, class diagrams, sequence diagrams, and
code. Unit and integration testing with hardware and online software
interfaces is a part of the WBS. Review of implementation document
and code are planned. |
The
labor estimate is based on the experience of the subsystem manager.
Availability of experienced CPs is accounted for in the estimate. |
|
| 26.4.6.4.3.3 |
Online
SW fabrication |
This WBS addresses the necessary code modification and integration
of the existing BPM/BLM software libraries. |
The
labor cost is based on the input from the subsystem manager, who
is also the SME. |
|
| 26.4.6.4.3.4 |
Offline
SW fabrication |
This
WBS addresses the implementation and integration of the off-line
software code. |
The
labor cost is based on the input from the subsystem manager. |
|
|
| 26.4.6.4.4 |
Tev
BPM system installation |
|
| 26.4.6.4.4.1 |
Electronics
installation |
This
WBS includes the activities of assembly, installation, cabling and
QC of the BPM electronics including BLM interface. The task of preparing
27 service buildings is also part of this WBS. |
The
labor cost was derived from experience of the subsystem manager
and similar work for tunnel upgrade activities. |
|
| 26.4.6.4.4.2 |
Front
end DAQ SW installation |
This
WBS includes integration testing of the Front-end DAQ software with
limited on-line testing using production quality hardware. |
Estimate
is based on historical data. |
|
| 26.4.6.4.4.3 |
Online
SW installation |
This
WBS includes integration testing with Front-end DAQ and off-line
software. |
Estimate is based on historical data. |
|
| 26.4.6.4.4.4 |
Offline
SW installation |
This
WBS includes integration testing with online software and user interface
testing for operators and physicists |
Estimate
is based on historical data. |
Most of the off-line software work
was devoted to data collection and analysis of the data to test
and validate the system. |
| 26.4.6.4.5 |
Tev
BPM system commissioning |
Based
on the system commissioning plan, initiated during the design phase,
the system will undergo commissioning and necessary modifications.
A fully commissioned system is the primary deliverable of this WBS.
The commissioning is done in multiple phases, beginning with BPMs
in a selected number of houses. Other deliverables for this phase
are TBPM maintenance manual and user and programmer guides for software. |
The
estimate is based on historical data. |
There was a significant delay in the
during the first house commissioning due to Echotek and front-end
software issues. This resulted in the delay of the first house commissioning
and overall delay in the conclusion of the project. |
| 26.4.6.4.6 |
Tev
BPM project management |
There
are three types of tasks in this WBS. Project management tasks involve
managing cost and schedules using project WBS, coordinating management
and project meetings, internal and external reviews, documenting
project level information in presentations and on the web. Technical
coordination tasks include coordinating technical aspects of the
project to assure that the end system delivered meets or exceeds
the requirements defined. SME tasks, the third type of tasks, involve
provision of technical expertise, including generation of new concepts,
refinement of requirements, and conducting measurements and beam
studies. measurements. |
Labor cost is estimated using level of effort method distributed
throughout the project. |
Labor cost increased due to extended
duration of the project. |
