Systems Engineering Management
Plan
Section 3.9 - Model Text
Formal Technical reviews* shall be conducted
in accordance with MIL-STD-1521B* general and detailed requirements
to assess the degree of completion of technical efforts related to major milestones before proceeding with further technical
effort.
Note: These reviews are sometimes referred to as "Dog and Pony
shows" by the way they are performed; more often now they are called joint
reviews and concentrate on the prepared products in accordance with MIL-STD-1521B.
The schedule and plan for conducting formal
technical reviews shall be contained in the Project Management System;
Development/Engineering Program Plan and shall identify the customer
involvement by milestone reviews and critical engineering dates as demanded in
the SOW.
In addition to the planned milestone
reviews,* ad hoc reviews can be convened should circumstances make them
necessary.
The scheduling of reviews is of particular
importance since holding them too early, before all documentation is available,
could lead to decisions being made based on insufficient information; whereas
scheduling them too late can mean that project commitments have already been
made which cannot be changed without incurring heavy financial or time
penalties.
It is therefore strongly recommended that the
boards responsible for the various reviews delegate the actual reviewing to
specialist working groups who shall perform the reviews as and when necessary,
reporting their findings at the next routine meeting of the board.
These reviews shall be a joint effort between
the design responsible SEM and any participating company representatives. The
objective of the review shall be to satisfy senior management and the customer
that the design of the system and its comprising hardware and software
satisfies all aspects of the requirement.
A brief overview of the Formal Technical
Reviews follows, full details of the review process involved however, are
contained in the MIL-STD-1521B and the appropriate
Appendix:-
Prior to a formal review an agenda shall be
provided containing the following information, purpose, location, and schedule
of the joint contractor/Government review required to manage the acquisition of
the system, equipment, HWCI, CSCI or services. This agenda shall set forth the
place, time, date, purpose, and objectives of each forthcoming review. See
DI-A-7088 for an example format and content of the agenda.
The review meeting(s) will make a number of
recommendations and a number of viewpoints recorded; the designer is required
to take note of this advice but will retain the authority and responsibility
for making the final decision. This does not alter the principle that 'the
customer is always right'. If having heard all the arguments the customer
insists on certain features in the design despite opposition from the design
team, then this view must prevail.
Minutes of the formal reviews shall provide
the documentation of technical information and data required to record the
joint contractor/Government decisions and agreements reached during the formal
reviews and audits. See 'Documentation Standard' for format and content of the
minutes to be prepared.
Participation at the formal technical reviews
shall include members of senior management, the design/development team,
quality assurance, configuration control; when appropriate, they may include
staff from purchasing, installation and maintenance. While there is an
understanding tendency to include extra staff at the review meeting, 'just in
case', large meetings can be inefficient and expensive; whenever possible the
numbers attending design reviews should be restricted to ten though they needed
to be well briefed.
Participants are expected to brief themselves
thoroughly and probe for weak spots in the design, but at the same time to
maintain self-discipline and objectivity.
CONCLUSION:
The formal technical review aims to satisfy
senior management and the customer that the design will satisfy all aspects of
the requirement. It is a critical, co-operative examination, first of the
design concept, later of its detail and finally of its suitability for
production and use.
Most attention shall be paid to areas which
contain unfamiliar problems, and outside consultants may be called in to
comment. The conclusions of the review shall be formally recorded as advice to
the design authority who shall retain the final responsibility for the design
and authority over it.
- 3.9.1 System requirements review(s).
- These reviews shall ascertain progress in
defining system technical requirements, program/design requirements (PMS)
and for implementing other Engineering Management activity.
The SRR shall be conducted during the system Concept and Exploration or
Demonstration and Validation phase.
The Prime documents to be reviewed is the preliminary System/Segment
Specification and project standards and procedures.
On successful completion of SRR(s) shall establish the Design
Requirements and Development Component baselines. This review may be
referenced as a contract review for the development of the system.
The number of SRR reviews shall be determined and shall be the
responsibility of the acquirer agency procurement.
- 3.9.2 System design review.
- This review shall be conducted to evaluate the
optimization's, correlation, completeness, and the risks associated with
the allocated program/design requirements, including the corresponding
test requirements in fulfilling the performance requirements specified in
the System/subsystem specification, System/subsystem design description
(i.e., the Functional Configuration Identification).
Also included is a summary review of the Systems Engineering process
which produced the allocated program/design requirements and of the
engineering planning for the next phase of effort.
This review shall be conducted when the system definition effort has
proceeded to the point where system characteristics are defined and the
allocated configuration identification has been established. This review
shall be in sufficient detail to insure a technical understanding among
all participants on:
- the updated or completed system and subsystem
specification;
- the completed system or system/subsystem design
description(s);
- the preliminary configuration item (CI) prime
and critical item development specification(s);
- other system definition efforts, productions,
and plans, for example., SEMP, CMP, DMP, RMP, System Test Plan, SDP(s),
Documentation Standard, speciality program plans, etc.
- A successful SDR shall establish the Functional
baseline.
The SDR is the responsibility of the acquirer or an authorized
representative.
- 3.9.3 Software specification
review. (Software only)
- The Software Specification Review (SSR) shall be
a 'formal' (customer present) review of each of the specific CSCI requirements
as specified in the 'Software Requirements Specification' and the
'Interface Requirements Specification(s) and shall be held after the
System Design Review but prior to the start of the CSCI Preliminary
Design.
The reviews purpose is to establish the Allocated Baseline for the
specific CSCI by demonstrating to the acquirer the adequacy of the
Software Requirements Specification and Interface Requirements
Specification(s).
A successful SSR and authentication of the specifications shall establish
the Software Allocated Baseline for each CSCI or software contained
within a HWCI.
The SSR must be identified in a SOW as a task and is usually used as a
payment milestone. The acquirer or his agent will be responsible for
approving the outcome of such reviews.
NOTE: The Allocated Baseline for HWCIs may be delayed but must be
established before the Formal Critical Design Review (CDR).
- 3.9.4 Preliminary design review.
- The 'Preliminary Design Review' (PDR) shall be a
formal technical review or a series of reviews of the basic design
approach for each CI or aggregate of a configuration item or for a
functionally related group of configuration items to:
- evaluate the process, technical adequacy, and
risk resolution (on technical cost, and schedule basis) of the selected
design approach;
- determine its compatibility with performance
and engineering specialty requirements of the CI development
specifications;
- establish the existence and compatibility of
the physical and functional interfaces among the CI and other items of
equipment, facilities, computer software, and personnel.
- It shall be held after the HWCI Development
specification(s), Software Design Description (Top-level), Software Test
Plan, and the System/hardware development Test plan are available, but prior
to the start of detailed design.
The PDR may be a combined hardware/software or may be separately held
depending on the complexity of the items to be reviewed.
The PDR shall be approved by the acquirer or his appointed agent.
- 3.9.5 Critical design review.
- The 'Critical Design Review' (CDR) shall be
conducted on each Configuration Item prior to
fabrication/production/coding release to insure that the detail design
solutions, as reflected in the draft HWCI Product Specification, Software
Design Description Database Design, Interface Design, and Engineering
drawings satisfy the requirements established by the hardware Development
Specification(s) (CIDS/PIDS) for the HWCIs and Software Design
(Top-level) for CSCIs.
For large/complex CIs the CDR shall be conducted on an incremental basis,
i.e., progressive reviews are conducted versus a single CDR.
The purpose of the review shall be to:
- determine that the detail design of the CI
under review satisfies the performance and engineering speciality
requirements of the CI development specifications;
- establish the detail design compatibility among
other items of equipment, facilities, computer software and personnel;
- assess producibility and CI risk areas (on a
technical, cost, and schedule basis);
- review the preliminary HWCI product
specifications;
- review any deviations/waivers.
- Additional In-progress reviews may be scheduled
post-CDR which address:
- Response to outstanding actions;
- Modifications to design necessitated by
approved 'Change Proposals' or design/program errors;
- Updating sizing and timing data;
- Updated design information, as applicable;
- Results obtained during in-house testing,
including problems encountered and solutions implemented or proposed.
- The CDR shall be approved by the acquirer or
his appointed agent.
- 3.9.6 Test readiness review.
- The 'Test Readiness Review' TRR shall be a
formal design review of the readiness to begin the CSCI testing phase and
shall be performed on each deliverable CSCI as applicable.
The review shall ensure the traceability of the specific CSCI software
test plan/test descriptions and test procedures back to the 'Software
Design Descriptions' and 'Software requirements specification'.
The review shall be conducted after the 'Software Test Procedure' is available
and the software unit and integration and testing is complete.
The major items to be reviewed are:
- Software/Interface requirements changes (Class
I);
- Design Changes (affecting the Design);
- Software Test Plan;
- Software Test description;
- Software Test procedure;
- Unit integration test cases, procedures and
results;
- problem/change reports;
- deviations/waivers raised;
- any changes to previously prepared associated
software products.
- A successful TRR shall lead to permission to
start CSCI testing.
The TRR shall be approved by the acquirer or his appointed agent.
- 3.9.7 Formal qualification
review.
- The test, inspection, or analytical process of
all the configuration items comprising the system are verified to have
met the specific contractual performance requirements (specifications or
equivalent).
This review does not apply to hardware and software requirements verified
at FCA for the individual configuration item.
The FQR is the final evaluation of the design status of the software
(CSCI) and hardware (HWCI) comprising the system. A comparison is made of
all functional evidence available against the System/subsystem
specification.
The major documents to be reviewed are:
- Plans, validation, and test reports from all
test phases;
- each individual HWCI and CSCI Functional
Configuration Audit report;
- each individual HWCI and CSCI Physical
Configuration Audit report;
- any open problem/change report, CPs or CRs;
- TRD and/or Product Acceptance Test Specification(s);
- Product Test Procedure(s)/Schedules(s);
- deviations/waivers raised;
- Master record index (VCM, test reports. etc.,).
- A successful FQR shall lead to the approval of
the Production Baseline. This review may be incremental for large or
complex systems.
The FQR shall be approved by the acquirer or his appointed technical
agent.
- 3.9.8 Production readiness
review.
- The 'Production Readiness Review' (PRR) is
intended to determine the status of completion of the specific actions
which must be satisfactorily accomplished prior to executing a production
go-ahead decision. The review is accomplished in an incremental fashion
during the Engineering and Manufacturing Development phase, usually two
initial reviews and one final review to assess the risk in exercising the
production go-ahead decision.
Timing of the incremental PRRs is a function of program posture and is
not specifically locked into other reviews.
The PRR is performed to decide if the system is in a suitable condition
for delivery to the acquirer (customer).
A frozen and approved Production Baseline Build Standard is mandatory
before production authorization can be given.
The major documents to be formally reviewed are:
- the FQR review report;
- the System PCA reports;
- the Production Baseline documentation (G.A,
PAS/PTS(s), Product specifications, MRI, etc.,);
- the production delivery requirements as stated
in the SOW;
- Master record index;
- A successful PRR shall lead to an instruction to
the appropriate group within the manufacture and deliver copies to the
acquirer in accordance with the Contractual requirements. The production
baseline shall form part of the Physical Baseline Build Standard (PBBS).
The PRR shall be approved by the acquirer or his appointed agent.
Other such formal reviews for specific applications can be added, for
example flight test, etc.,
Further
information see Design Review discussion.

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Copyright © by Ken Rigby 1996, 1997, 1998 -- 2003
Formal Technical reviews are equivalent to
DEF STAN identified Design Reviews.