1 review of standard tools mark e. sampson updated 12/20/04 emis 8390 systems engineering...
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Review of Standard Tools
Mark E. Sampson
UPDATED 12/20/04
EMIS 8390
Systems Engineering Tool—applying tools to engineering systems
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Standard Desktop Tools
…according to a time & motion study by TI, Systems Engineers spend 50% of their time writing documents, 25% of their time re-entering the same information in different locations, 14% of their time futzing (technical term for getting documents to print correctly), and 30% of their time in meetings,…
…you’ll notice it adds up to greater than 100% due to average SE workweek of 60+ hours
One of the fundamental purposes of Tools is to accelerate your job.
[Sampson 1994]
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Keeping the architect ahead of construction crews
…analysis by TI, Gartner, and others shows 50% of programs go runaway. Standish claims the majority of those are caused by a failure to define, deliver, and keep-up-with requirements.
Runaway’s are characterized by late cycle changes, heroic integration efforts, …, and “architects documenting what the construction crews are building” rather than leading the way.
…lack of direction/leadership increases probability of a runaway.
Goal of tools is to keep the architect ahead of construction crew…it’s the carrot
[Sampson 1994]
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Why documents…
Given the amount of time spent on documents, it’s easy to get confused about what the systems engineering product is…
…a document? Or a design?
A discussion about wheelbarrows.
DESIGN
SPEC.
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DESIGNSPEC.
DESIGNSPEC.
Documents…a means of conveying design decisions
Tools are used to accelerate the capture and delivery of design information. Documents are one way to do that.
Upside of documents:• Codify the design• Communication• Culturally acceptable• How you get paid
The downside of documents:• Paper based baselines & management systems• No body reads them• Obsolete by the time you print them• Give you a good feeling about project if documents are on schedule
DESIGNSPEC.
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Standard Desktop Tools—Word Processors
Word, Word Perfect, Framemaker, Interleaf, and other intelligent word processors
• Simple: Word, Word Perfect,…for reports, documents,…• Complex: Framemaker, Interleaf…books, etc.
Using Field codes/references tagging as a database
Example: Vitalink using Framemaker with tags…http://www.complianceautomation.com/
Page formatting languages(ROF with tagging)
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Standard Desktop Tools--Spreadsheets
Excel and other spreadsheets…
• Macros• Visual Basic
Spreadsheet based systems engineering
Embedded applications…• Crystal Ball• Matlab• SAS• Risk Managers
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Standard Desktop Tools--Presenters
Powerpoint and other presentation tools…
“Powerpoint engineering”
• Visual Basic• Animations
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Standard Desktop Tools--Databases
Relational: like Access, Paradox,…OracleObject: ObjectStore, Versant,…
• “Systems Engineers love to roll-their-own” • “Vast majority of requirements/traceability is held in Access”
Combine word processor with database:
Example: Rational Requisite Pro
http://www.rational.com/products/reqpro/index.jsp
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Standard Tools—Yellow Sticky Notes
Post-it® Sticky Notes
How used…• Brainstorming…example from class or my choosing
• Organizing information • Decomposition• …
Electronic version: http://www.3m.com/market/office/postit/com_prod/psnotes/
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Class SE Environment
UGS/SMU is making available…
• Teamcenter Requirements and
• Teamcenter Community for class usage…
Why Teamcenter?• Freely-available for students • Web-based tools for lifecycle collaboration…• Short-learning curves
You can use whatever tools are available to you…including Word, Excel, Access, etc.
Assignments are delivered in electronic form (see assignment requirements)
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Product Lifecycle ProcessProduct Lifecycle Process
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Product Lifecycle ProcessProduct Lifecycle Process
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Integrating the VOC with the Lifecycle…
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Some of TcR’s user extensible building blocks...
Building Blocks are used to build things--products, organizations, test systems, processes, etc.
Requirements capture the intent of the product design, goals, performance objectives--what you are going to verify & how you know you are done.
Folders for organizing information—Requirements, issues, etc..
Notes provide a project notebook for documenting decisions, action items, critical issues, test results, etc.
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We use these building blocks to capture systems...
Car
Engine Trans-mission
Clutch
Block Fuel System
Electrical PowerTrain
Body
TechnicalPerformanceTargets
RequirementsLinks
These blocks can be connected like “tinker toys”to describe things like this vehicle...
Notes
Block Fuel System
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Requirements PoolRegulatio
ns
Standards
Customer
Spec’s
CustomerInputsMeetings
Technology
PR’s
Lessons Learned
Design
Spec’s
Test
Doc’s
Web
Doc’s
User
Doc’s
Organizing Requirements
TcR Overview
Why’s
Doc’s
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Goal…apply/reuse managed data in early product development
PDM
Data Mgmt
Integrating Systems Engineering & Requirements with Teamcenter
Regulations
Standards
Customer
Spec’s
CustomerInputsMeetings
Technology
PR’s
Lessons Learned
TcR
Early Prod. Design
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TcR Demo
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TcRequirements/TcCommunity Configuration Requirements
TcRequirement/TcCommunity connect existing desktop tools to a multiuser database to create a collaborative SE environment…I.e. when a user double clicks on a requirement, it launches Word to edit the requirement
• TcRequirements requires: • Standard PC running Windows 2000+• MS Office 2000, XP, 2003 (preferred)• Web access with standard web browser (MS IE 5.5+)
Pointing web browser at server, installs Java applet, and starts…LMCO firewalls have some issues…see Community site for installation instructions
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TcRequirements Access
Browser Access: http://www.tcreq.com/tcr51 Userid: se2team1…
1. Pick an administrator…2. Establish access for team members3. Try it out from home
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TcCommunity Demo
Provides: • Online, web-based collaboration• Discussion threads, white boards, etc. • Document repository, CM,…• Application sharing,…• Routing/Approvals…• Course AssignmentStatus
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TcCommunity Access
Browser Access: http://mycommunity.ugs.com/customers/LMCO_SE/default.aspx
1. Userid’s have already been established…first initial, last name
2. Login, change your access3. Try it out from home start loading your documents
there…