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Systems Engineering CORE

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Systems Engineering CORE - A Model Based Approach January, 2004 Jody H. Fluhr Vitech Corporation www.vitechcorp.com jfluhr_at_vitechcorp.com 502.995.8895 – PowerPoint PPT presentation

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Title: Systems Engineering CORE


1
Systems Engineering CORE - A Model Based
ApproachJanuary, 2004
Jody H. FluhrVitech Corporationwww.vitechcorp.co
mjfluhr_at_vitechcorp.com 502.995.8895
2
  • Providers of Systems Engineering Solutions
  • Consulting
  • Training
  • Systems Engineering Technology and Tools
  • Developers of the CORE Systems Engineering Tool
    Suite
  • Founded in August 1992
  • First commercial shipment of CORE in March 1993
  • Headquarters in Tysons Corner, Virginia
  • US Sales Offices throughout the US
  • International Resellers around the world

3
Over 250 Clients in 14 Countries
  • DoD
  • US Army, US Air Force, US Navy, USMC
  • Intelligence Agencies
  • CIA, NIMA, NSA, NGIC
  • Dept. of Energy
  • Sandia, Los Alamos, Idaho Falls, Savannah River,
    Hanford
  • NASA
  • Lockheed Martin
  • Boeing
  • Raytheon
  • FedEx
  • MITRE
  • Booz-Allen Hamilton
  • SAIC
  • Sprint
  • Bearing Point
  • UDLP
  • Northrop Grumman
  • Orbital Sciences
  • Battelle
  • TRW
  • TASC
  • Canadian Defense Research (DRDC)
  • General Atomics/Burns and Roe
  • NOKIA Telecommunications
  • Motorola
  • USAA
  • De Beers Diamond Mines (SA)
  • Peugeot/PSA Citroen
  • Israeli Aircraft Industries
  • Litton/PRC

4
The Systems Engineering Dilemma Complexity and
Synchronization
Design Team
Inputs
Software Engineering
Electrical Engineering
External Teams
Needs And Requirements
Quality Engineering
Safety Engineering
Preliminary System Concepts And Existing
Interfaces
Procurement
Test and Verification
Mechanical Engineering
Manufacturing
5
Major Challenge of Systems Engineering
  • Managing the complexity to achieve a harmonious
    solution.
  • Many different types of efforts and information
    must be successfully managed/executed to achieve
    project success
  • Engineering Elements (Requirements,
    Functionality, Architecture, System Resources,
    etc.)
  • Project Elements (WBS, Activities/Tasks,
    Products, Reviews, Processes, Budgets, Schedules,
    etc.)
  • Interconnectivity Elements are related to and
    affect one another
  • Complexity creates Challenges
  • Integration Challenge
  • How to keep team efforts integrated?
  • Consistency Challenge
  • How to keep engineering (information, design,
    documentation, etc.) consistent across the board?
  • Availability Challenge
  • How to keep the latest engineering accessible to
    the whole team?
  • How to prevent engineering/decisions based on
    obsolete/dated information?

6
CORE Overview
  • CORE A Systems Engineering Technology
  • Developed to support the People who implement the
    Systems Engineering Methodology
  • Analyze, Decompose and Allocate System
    Requirements
  • Validate Requirements
  • Requirements Management ? Requirements
    Engineering
  • Define System Behavior
  • Functionality
  • Operations
  • Define System Architecture
  • Internal and External Interfaces
  • Subsystems/Assemblies/Components
  • Define System Verification and Validation
  • Verification Requirements
  • Verification Planning (Events and Resources)
  • Designed to meet the Systems Engineers Challenges

7
System Engineering Process
8
An Iterative System Engineering Process
CORE supports a disciplined, iterative approach
to systems definition.
9
CORE Overview - System Engineering Capabilities
Requirements Analysis and Management
Design and Implementation
  • Requirements Capture
  • Requirements Analysis
  • Requirements Traceability
  • Requirements Issues and Risks
  • Physical Architectural Modeling
  • Functional Modeling
  • Operational Scenarios
  • Interfaces External and Internal
  • System Integration
  • System Issues and Risks

Verification and Validation
Document Generation
  • Verification Requirements Development
  • Verification Planning and Status
  • Test Procedure Development
  • Test Configuration Development
  • Verification Issues and Risks
  • System Specifications
  • Interface Control Documents
  • RFP Responses and Proposals
  • Requirements Traceability Reports

10
CORE Overview The CORE Repository
CORE Repository
  • Centralized repository or database
  • Accessible to engineering team
  • Comprised of classes of elements and elements
    themselves
  • Elements have attributes
  • Elements can have relationships with other
    elements
  • Data in repository can be viewed and manipulated
    in various ways

Database Editor
11
CORE Overview The CORE Repository
Element
Systems Engineering CLASSES
Relationships
  • Document
  • System
  • Components
  • Functions
  • Interfaces
  • Constraints
  • Requirements
  • Risks
  • Issues
  • Etc.

Attributes
This Database Editor view allows browsing of
all system elements, Relationships, and
attributes.
12
CORE Overview Engineering Element Example
Element Name
Other Element Attributes
This element, ATC Draft Specs-7.23.90,
documents these six requirement elements.
Element Relationships
Element Editor
13
Example System Requirements Model
Original Requirements
Children (decomposed) Requirements
Requirements Traced to Functionality
Functionality Allocated to System components
14
CORE Overview - System Engineering Capabilities
Requirements Analysis and Management
Design and Implementation
  • Requirements Capture
  • Requirements Analysis
  • Requirements Traceability
  • Requirements Issues and Risks
  • Physical Architectural Modeling
  • Functional Modeling
  • Operational Scenarios
  • Interfaces External and Internal
  • System Integration
  • System Issues and Risks

Verification and Validation
Document Generation
  • Verification Requirements Development
  • Verification Planning and Status
  • Test Procedure Development
  • Test Configuration Development
  • Verification Issues and Risks
  • System Specifications
  • Interface Control Documents
  • RFP Responses and Proposals
  • Requirements Traceability Reports

15
CORE Overview Functional/Operational Modeling
CORE provides Functional Flow Block Diagrams
(FFBDs) to capture system functionality or
operations. Each Function is an element in the
Repository.
16
CORE Overview Functional Interfaces
Enhanced Functional Flow Block Diagram
N2 Diagram
CORE provides Enhanced Functional Flow Block
Diagrams and N2 Diagrams to capture Functional
Interfaces.
17
CORE Overview Functional/Operational Modeling
and Discrete Event Simulation
System behavior model defines architecture of
simulation model
CORE executes FFBDs in its Discrete Event
Simulator allowing dynamic analysis of functional
models and requirements.
18
CORE Overview System/Architecture Modeling
See Next Slide.
The System Architecture or System Hierarchy view
shows the breakdown of the system.
19
CORE Overview System/Architecture Modeling
Attributes of this system component.
Relationships to other elements.
A different view of the same element its
attributes and relationships to other elements in
the system model.
20
CORE Overview System Interfaces
See Next Slide.
The Open Circle on the interface indicates
that the interface connects through the Top-Level
System to a subsystem.
This Interface or Physical Block Diagram is
automatically generated by CORE based on the
data in the repository.
21
CORE Overview System Interfaces
Interface Name
Interface Description
Interface Connectivity
All things that appear on any diagram are
elements in the Repository.
22
CORE Overview System Interfaces
Data (Secondary) Interface
23
CORE Overview - System Engineering Capabilities
Requirements Analysis and Management
Design and Implementation
  • Requirements Capture
  • Requirements Analysis
  • Requirements Traceability
  • Requirements Issues and Risks
  • Physical Architectural Modeling
  • Functional Modeling
  • Operational Scenarios
  • Interfaces External and Internal
  • System Integration
  • System Issues and Risks

Verification and Validation
Document Generation
  • Verification Requirements Development
  • Verification Planning and Status
  • Test Procedure Development
  • Test Configuration Development
  • Verification Issues and Risks
  • System Specifications
  • Interface Control Documents
  • RFP Responses and Proposals
  • Requirements Traceability Reports

24
CORE Overview Verification Validation Planning
Requirement Source
Source Requirement
Design/Implementation
Traceability
Verification Requirement
Verification Event
Test Configuration
Test Procedure
25
Program and Project Management
Organizational Model
Work Breakdown Structure
Project Functional Flow Model
COREs Systems Engineering Methodology and
Capabilities can be applied to project
engineering.
Refer to ECS Case Study
26
CORE Overview - System Engineering Capabilities
Requirements Analysis and Management
Design and Implementation
  • Requirements Capture
  • Requirements Analysis
  • Requirements Traceability
  • Requirements Issues and Risks
  • Physical Architectural Modeling
  • Functional Modeling
  • Operational Scenarios
  • Interfaces External and Internal
  • System Integration
  • System Issues and Risks

Verification and Validation
Document Generation
  • Verification Requirements Development
  • Verification Planning and Status
  • Test Procedure Development
  • Test Configuration Development
  • Verification Issues and Risks
  • System Specifications
  • Interface Control Documents
  • RFP Responses and Proposals
  • Requirements Traceability Reports

27
CORE Overview Document Generation
The content of documents are automatically
generated by CORE based on the data in the
repository.
28
COREscript and API
  • Scripting language provided in CORE
  • Object Oriented Query Language
  • Document/Report Generation
  • MS Word compatible (Rich Text Format)
  • MS Excel compatible
  • HTML
  • Text
  • Over 30 open-source reports (System
    Specifications, Interface Specifications, etc.)
    are provided
  • Query and Analysis
  • Application Program Interface
  • Provides access to Engineering Repository
    information by external applications
  • Automation of information exchange with
    applications such as PDM, DOORS, etc.

29
The Total Process and Synchronization
Source Requirements Domain
Function/ Behavior Domain
Requirements trace to behavior
Behavior is allocated to physical components
Architecture Domain
verified by
VV Domain
Process Domain
verified by
verified by
Requirements trace to physical components
30
CORE Deployment Options
Segments
Updates
31
Backup
32
CORE Deployment Options Workstation
  • CORE Workstation
  • Fully functional, single-user version of CORE
  • Self-Contained Database Management System
  • Executes on standalone computer workstation
  • Databases can be exported and imported
  • Operates in conjunction with CORESim Product
  • CORESim provides Discrete-Event Simulation
    capability
  • System Requirements
  • Windows 95/98/Me or Windows NT/2000/XP
  • 300 MHz processor or higher
  • 128 MB RAM
  • 80 MB available hard disk space

33
CORE Deployment Options Enterprise
  • CORE Enterprise
  • Client-Server Version of CORE
  • Provides scalability for project teams
  • Provides access to engineering repository from
    clients on local-area network
  • Enterprise Server System Requirements
  • Windows NT/2000/XP (Professional or Server
    Additions)
  • 10BaseT Network (or better)
  • 128 MB RAM
  • 300 MHz CPU or higher
  • Enterprise Client System Requirements
  • Windows 95/98/Me or Windows NT/2000/XP
  • 300 MHz processor or higher
  • 128 MB RAM
  • 80 MB disk free space
  • TCP/IP protocol LAN access to Enterprise Server

34
CORE Deployment Options COREsim
  • COREsim
  • Adds Discrete Event Simulation capability to CORE
  • Dynamically interprets behavior models (FFBDs)
  • Utilized to identify timing, resource utilization
    and model inconsistencies
  • System Requirements
  • No additional resources required

35
CORE Deployment Options CORE2net Web Server
  • CORE2net Enterprise Web Server
  • Allows any workstation with a web browser and
    internet access to Engineering Repository on
    Enterprise Web Server
  • Operates in Enterprise Configuration Only
  • Requires user name and password (same as
    Workstation and Enterprise)
  • Web-based html interfaces
  • Predefined views and queries
  • Customizable html interfaces can be developed and
    deployed

36
CORE Deployment Options CORE2net
  • CORE2net allows users to access the CORE
    Engineering Repository on the Enterprise Server
    using the Internet
  • Provides browsing capability
  • Authorized users can change element information
  • Execute queries or generate views (see next
    slide)

37
CORE Deployment Options CORE2net
38
Thank You for Attending.
  • Jody H. Fluhr
  • jfluhr_at_vitechcorp.com
  • 502.995.8895
  • Vitech Corporation Phone 703.883.2270
  • www.vitechcorp.com
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