Product Bible: The entire set of product documents defining a product is
organized into a loose-leaf notebook and ultimately a CD. This "bible" may
contain drawings, procedures, code listings and so forth. There may be a separate
bible for each Phase of a product's development - e.g.: Pilot Production Bible, Production
Device Master Record (DMR): This is a one or two page, A-size sheet
document and is organized as a table of all custom assemblies comprising your product.
Each Assembly has its defining documents listed by its current revision number or
letter. The "rev." number of the DMR = the Product's rev.#.
Overview Drawing (-DV): This is ordinarily a single A-size sheet which
sketches the subassembly from a perspective view. It is designed to rapidly
communicate a look and "feel" for the subassembly. The drawing tools may
be either hand sketches or Corel Draw.
Doc. Record & Parts List (-LP): This is a combined parts list for an
assembly and a list of documents which exist to support its manufacture. EDA
normally defines each part with its seven-digit number system, which in turn refers to
either custom documents or a purchase Material Specification.
Doc. Schematic (-DE): Each
electronic circuit subassembly will have its own schematic diagrams. These are
typically B-size drawings. EDA's schematic procedure demands that this
diagram not only communicates wiring, but also signal flow, basic test information and
other data, important to understanding the function and engineering design intent, in a
concise manner. EDA's CAD support software is primarily CADsoft's Eagle
which has a freeware reader for your use.
PWB Specification Package (-SP):
Each electronic printed wiring board has a document package of its own,
which typically consists of a Purchase Spec., a Mechanical/Drill drawing and one or more
artwork layers. These circuit wiring and masking layers are typically specified and
recorded as Gerber plotter files on computer disks.
Mechanical Drawing (-DM): Mechanical
parts, such as brackets, box parts and so forth, are specified on A or B-size drawings
using TurboCAD, AutoCAD Inventor or similar CAD software.
Graphic Artwork (-AG): Panel
markings, labels and so forth are defined with both paper printouts and CAD art computer
Assembly Guideline (-PG): This
informal written procedure outlines the assembly process as envisioned by the design
engineering team. This engineering "view- point" is vital for
communication with any future manufacturing team and is especially effective for complex
Test Procedure (-PT): This
procedure defines a recommended test process for a subassembly. EDA expands
its scope to include a basic test specification, as well as, a preliminary test procedure.
This reduces your development costs for new products.
Software Listing (-LS): Each
embedded computing or programmable device will have its own firmware listing, which
includes source code and compiled code. The source listing is typically provided as
ASCII readable files. EDA's source code is prefaced with a "technical
memo", which provides nearly complete background on the "why",
"what" and "how" of the design. This substantially reduces your
future maintenance costs.
("Mat-Spec"): Unusual standard purchased parts typically have a
purchasing document created, which specifies the exact part number, color, size, etc. for
each approved vendor. Vendor data sheets are usually attached. This Mat-Spec
may be a physical, A-size document or a data base printout. EDA has over
ten years of accumulated Mat-Specs, which can save you their creation costs.
[Top of Page]