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一位系统工程牛人:Jeff Estefan

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发表于 2018-10-3 15:32:46 | 显示全部楼层 |阅读模式

Jeff Estefan

Principal Engineer at NASA's Jet Propulsion Laboratory

美国 大洛杉矶地区航天
目前就职
上一个
教育背景
500+位好友




个人简介
MULTIMISSION OPERATIONS SYSTEM / GROUND DATA SYSTEMS ENGINEERING
TECHNOLOGY PORTFOLIO MANAGEMENT
SYSTEMS AND SOFTWARE ARCHITECTURE
MODEL-BASED ENGINEERING
ENTERPRISE ARCHITECTURE / IT GOVERNANCE
NET-CENTRIC ENTERPRISE SERVICES
SERVICE ORIENTED ARCHITECTURES
INTEGRATION STRATEGY CONSULTING
MIDDLEWARE SERVICES & INTEROPERABILITY TESTING
PRODUCT AFFINITY SERVICES
BUSINESS MODELING
SYSTEMS ARCHITECTING
PROJECT MANAGEMENT
APPLICATION INTEGRATION
APPLICATION DEVELOPMENT
RESEARCH & DEVELOPMENT
ALGORITHM DEVELOPMENT

工作经历
  • [color=rgba(0, 0, 0, 0.9)]NASA's Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]15 年 4 个月


    • MGSS Chief Architect and Principal Engineer[color=rgba(0, 0, 0, 0.9)]NASA's Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]2011 年 10 月 – 至今  7 年 1 个月

      [color=rgba(0, 0, 0, 0.9)]MULTIMISSION OPERATIONS SYSTEM / GROUND DATA SYSTEM ENGINEERING
      Coordinate and lead the architecture definition and evolution of NASA-sponsored and JPL-managed Advanced Multimission Operations Systems (AMMOS). Promote the use of state-of-the-art system and software architecting principles applicable to the space exploration ground system engineering domain as well as the use of the well documented architectural descriptions guided by industry standards such as the ANSI/IEEE 1471-2000 Std. (now ISO/IEC 42010:2007 Std.) “IEEE Recommended Practice for Architectural Description of Software-Intensive Systems.” Develop and maintain a set of core AMMOS Level 3 architecture principles and architecture requirements. Provide system engineering insight/oversight to common (shared) infrastructure services implementations as well as other ground data system modernization implementations in concert with the core set of architecture principles and requirements. Develop and/or co-develop the AMMOS system level roadmap, particularly with respect to AMMOS themes centered on architecture modernization. Establish AMMOS software architecture review processes consistent with NASA and JPL institutional processes as one of the review components managed by the Multimission Ground System and Services (MGSS) Office’s program software management plan (PSMP) in an effort to facilitate formalized software architecture reviews as a critical gate process for AMMOS modernization task implementations.


    • [color=rgba(0, 0, 0, 0.9)]Enterprise Architect[color=rgba(0, 0, 0, 0.9)]NASA's Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]2003 年 7 月 – 至今  15 年 4 个月
      [color=rgba(0, 0, 0, 0.6)]Pasadena, California, U.S.A.

      [color=rgba(0, 0, 0, 0.9)]ENTERPRISE ARCHITECTURE/IT GOVERNANCE
      Active member of the JPL core Enterprise Architecture (EA) team supporting the JPL Office of the Chief Information Officer (OCIO). Published JPL EA Overview document describing EA concepts and principles and how EA might be applied as part of the overall IT portfolio management and IT governance strategy at the Laboratory. Participate in the NASA EA Working Group and NASA EA Workshops. Develop content for the JPL IT Governance Development Task as part of the IT Architecture Working Group and map work of the core EA team to this activity.


    • Division Chief Technologist/Principal Engineer[color=rgba(0, 0, 0, 0.9)]NASA/Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]2004 年 4 月 – 2011 年 9 月  7 年 6 个月
      [color=rgba(0, 0, 0, 0.6)]Pasadena, California, U.S.A.

      [color=rgba(0, 0, 0, 0.9)]TECHNOLOGY PORTFOLIO MANAGEMENT
      Serve as Systems and Software Division Chief Technologist. Provide intellectual leadership and strategic focus for the Division’s technology efforts. Maintain a strong understanding of the technologies across the breadth of the Division. Responsible for assuring that the Division maintains a strong, relevant and evolving technology base. Ensure that technology infusion is appropriately targeted and that infusion is being actively worked. Support the Engineering & Science Directorate (ESD) Deput Director for Research (DDR) and the JPL Chief Technologist. Attend Technology Working Group (TWG) meetings as well as ESD Tech Board meetings and respond to working group actions. Provide appropriate contributions to the JPL Strategic Technology Plan. Develop and maintain the Division Technology Plan that is responsive to the JPL Strategic Technology plan. Provide management oversight and review of Division technology task status including tracking the technology sponsors and activities funding. Provide review and assistance to practicing technologists in the development of proposals that are consistent with the goals of the Division and the Laboratory.

      Specialties:Active member of the JPL core Enterprise Architecture (EA) team supporting the JPL Office of the Chief Information Officer. Published JPL EA Overview document describing EA concepts and principles and how EA might be applied as part of the overall IT portfolio management and IT governance strategy at the Laboratory. Develop content for the JPL IT Governance Development Task as part of the IT Architecture Working Group and map work of the core EA team to this activity.


    • Division Technologist/Principal Engineer (Part 2)[color=rgba(0, 0, 0, 0.9)]NASA's Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]2004 年 4 月 – 2011 年 9 月  7 年 6 个月
      [color=rgba(0, 0, 0, 0.6)]Pasadena, California, U.S.A.

      [color=rgba(0, 0, 0, 0.9)]MODEL-BASED ENGINEERING
      Helped define and direct the early model-based engineering (MBE) strategic goal area for the Systems and Software Division at JPL. Facilitated MBE steering group strategic planning activities, governance decisions, and education and training resources in support of advancing the state-of-the-practice in MBE at JPL from a systems and software perspective. Developed courseware for MBE and taught a course in the foundational concepts of MBE offered through JPL professional development both in a half-day forum and as a distilled version offered as part of the curricula of other engineering courseware. Co-led the creation of the JPL UML/SysML Users Group and actively participate in the Modeling Early Adopters (MEA) grass roots user group discussion forum and practitioner sessions. Participated as member of the NASA Topic Working Group on Models & Simulations and assisted in the development of the NASA standard for models & simulations. Served as member of the International Council on Systems Engineering (INCOSE) Model-Based Systems Engineering (MBSE) Initiative and helped develop the INCOSE MBSE roadmap while serving as Activity Team lead for the Processes, Practices, and Methods area of the MBSE Initiative.



  • President and Chief Enterprise ArchitectCIO Advisory Group[color=rgba(0, 0, 0, 0.9)]2002 年 10 月 – 2003 年 4 月  7 个月
    [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区



    [color=rgba(0, 0, 0, 0.9)]INTEGRATION STRATEGY CONSULTING AND SEMINAR SERIES
    Responsible for the overall management and leadership of the CIO Advisory Group. Developed creative content and delivery of executive level seminars for IT directors and IT professionals and providing technical leadership in the creation of IT strategy tools for enterprise e-business computing. Facilitated creation of company-wide integration strategies and formation of integration competency centers (ICCs). Focused on centralization of the integration function in an effort to gain executive management approval toward achieving company-wide integration success. Site visits included crafting the architectures and standards for integration, participation in all integration project reviews, definition of internal and external application and data interface standards, and evaluation of integration middleware product offerings. Key corporate value proposition was crafted so as to provide an unbiased approach to the e-business integration problem in an effort to help alleviate some of the internal political barriers and to focus on the best possible solution strategies that would serve enterprise business and IT initiatives.



  • Sr. Consulting Enterprise Architect[color=rgba(0, 0, 0, 0.9)]Adecco Technical[color=rgba(0, 0, 0, 0.9)]2001 年 4 月 – 2002 年 10 月  1 年 7 个月
    [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区



    [color=rgba(0, 0, 0, 0.9)]MIDDLEWARE SERVICES & INTEROPERABILITY TESTING
    Led team in the design and development of a large-scale human resources (HR) information Portal with connectivity to PeopleSoft 8 Enterprise Resource Planning (ERP) system, HR Web self services (deployed on a Java 2 Platform, Enterprise Edition (J2EE) application server), and to external facing financial and health & welfare systems that exist outside the corporate firewall (e.g., CitiStreet and Hewitt). Leveraged Web Services technologies as well as and vendor solution offerings for ad-hoc and systematic Application-to-Application (A2A) and Business-to-Business (B2B) integration, business process automation, and human workflow integration. Orchestrated activities for middleware technical team, assist in daily project management tasks, design integration flows and integration logic for intelligent message routing and message delivery, develop templates for project artifacts, work products, and deliverables.
    Led vendor evaluation team as part of a Request-for-Proposal (RFP) for a next generation Business-to-Business (B2B) Integration Broker to be used for e-enablement of over twenty procurement systems and to provide an integrated supply-chain for the enterprise. In addition, the broker solution is to provide a gateway to an aerospace industry exchange deployed as a CommerceOne e-marketplace.
    Articulated functional and non-functional requirements for blockpoint certification of Enterprise Application Integration (EAI) middleware solution offerings. Service functions included intelligent message routing, assured message delivery, message warehousing, adapter technology (platform, technology, application, and database adapters), enterprise infrastructure integration (security, directory & naming, systems management, e-mail), and business process automation.



  • [color=rgba(0, 0, 0, 0.9)]IBM Software Group[color=rgba(0, 0, 0, 0.9)]3 年 1 个月


    • [color=rgba(0, 0, 0, 0.9)]Solution Architect[color=rgba(0, 0, 0, 0.9)]IBM Software Group[color=rgba(0, 0, 0, 0.9)]1998 年 9 月 – 2001 年 4 月  2 年 8 个月
      [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区

      [color=rgba(0, 0, 0, 0.9)]PRODUCT AFFINITY SERVICES
      Provided direct support and mentoring to customers, business partners, and IBM Global Services personnel in the design, development, test and deployment of Java-based enterprise computing solutions that utilize the IBM WebSphere Family of application server offerings. These application server offerings span all three editions of the product, Standard, Advanced, and Enterprise/Component Broker and incorporate technologies adopted from the Java 2 Platform, Enterprise Edition (J2EE), including Java servlets, JavaServer Pages (JSP) pages, JavaBeans components, Enterprise JavaBeans (EJB) components, Common Object Request Broker Architecture (CORBA) components, and the Extensible Markup Language (XML).
      Responsible for the overall technical design and delivery of business solution engagements. Provided team leadership of on-site teams; coordinate schedules, process model deliverables and day-to-day project management functions. Served as liaison between customer project teams and all IBM groups participating in each project. Assisted customer teams with operational issues and configuring development environments; identified and reported technical issues and product related defects.


    • [color=rgba(0, 0, 0, 0.9)]Consulting I/T Specialist[color=rgba(0, 0, 0, 0.9)]IBM Global Services[color=rgba(0, 0, 0, 0.9)]1998 年 4 月 – 1998 年 9 月  6 个月
      [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区

      [color=rgba(0, 0, 0, 0.9)]BUSINESS MODELING
      Coordinated and facilitated business modeling techniques to capture requirements for the allocation and replenishment activities of a large, outdoor clothing retailer. Mentored client representatives in use case modeling methodologies and facilitated business requirements gathering workshops. Developed synch points to merchandise planning activities and delivered high-level business models and use case textual models to the client to be used in a package selection process. Worked with IBM team to architect a single business process for use across all merchandise concepts and for multiple countries with objective of yielding significantly improved turn in margin.

      SYSTEMS ARCHITECTING
      Directed an architectural assessment of an electronic Agency Interface prototype development effort for a non-standard Property & Casualty insurance provider. Initiated discussions with client technical representatives to leverage existing technologies and pilot project findings. Mentored client and project representatives in use case modeling techniques for gathering business requirements, and architected a tiered business solution strategy to meet the client’s business case, ensure flexibility, and adhere to open, scaleable technology standards.



  • [color=rgba(0, 0, 0, 0.9)]Technical Consultant[color=rgba(0, 0, 0, 0.9)]Adecco/TAD Technical[color=rgba(0, 0, 0, 0.9)]1997 年 11 月 – 1998 年 3 月  5 个月
    [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区


    [color=rgba(0, 0, 0, 0.9)]SOFTWARE/SYSTEMS ARCHITECTING
    Led object-oriented software engineering initiatives for requirements capture and analysis using use cases and domain and application models for The Teledesic Network’s Constellation Operations and Control Center (COCC). Methodologies included depiction of use cases, conceptual object models and class collaboration and activity diagrams via the OMG-standard Unified Modeling Language (UML), supported by template-based textual models.

    Drafted software development architectures and baseline development processes with adaptations from Rational Software’s Objectory Process, NOKIA’s “Simplified Method” and Lockheed Martin’s ACC Process. Led and participated in prototyping discussions between key Tracking, Telemetry & Commanding (TT&C) Commercial-Off-The-Shelf (COTS) suppliers. Initiated OMG CORBA-compliant middleware planning issues and identified potential design patterns for developing wrapper classes between application- and COTS-based software products.



  • [color=rgba(0, 0, 0, 0.9)]Technical Consultant[color=rgba(0, 0, 0, 0.9)]Analysts International Corporation[color=rgba(0, 0, 0, 0.9)]1996 年 9 月 – 1997 年 10 月  1 年 2 个月
    [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区


    [color=rgba(0, 0, 0, 0.9)]PROJECT MANAGEMENT
    Team lead for twelve CORBA developers who were creating all application interfaces for the world’s largest business process re-engineering effort. Served as primary focal for automated code generation, development environment, and daily process/development activities. Participated in management reviews and generated reports for team’s Project Plan. Planned and tracked project budget, including detailed resource allocation plans, schedule milestone requirements, and deliverables. 

    APPLICATION INTEGRATION
    Participated in the development of over 100 unique interfaces and management of custom CORBA code generation techniques, including automatic creation of smart proxy classes and C++ interfaces to numerous communication mechanisms, languages, and platforms (MOMQ, FTP, C, HP-UX, Solaris, VMS, etc.). Developed interface code alongside consultants from IONA Technologies (Orbix®), the largest supplier of CORBA-compliant distributed object technology and international partners on this flagship development effort.



  • Aeronautical Engineering Duty Officer[color=rgba(0, 0, 0, 0.9)]United States Naval Air Reserve[color=rgba(0, 0, 0, 0.9)]1988 年 1 月 – 1997 年 5 月  9 年 5 个月


    [color=rgba(0, 0, 0, 0.9)]DUTIES/TRAINING
    Acquisition and logistic support of Naval aircraft and weapon systems; reached grade of Lieutenant Commander. F/A-18E/F industrial analysis; foreign weapons systems evaluation; P-3C/7A maritime patrol aircraft software architecture commonality studies; HH-60H strike rescue helicopter aircrew exercises; F-14A inertial navigation system at-sea accuracy testing onboard USS Kitty Hawk (CV-63).



  • [color=rgba(0, 0, 0, 0.9)]Member Technical Staff[color=rgba(0, 0, 0, 0.9)]Jet Propulsion Laboratory[color=rgba(0, 0, 0, 0.9)]1989 年 9 月 – 1996 年 8 月  7 年
    [color=rgba(0, 0, 0, 0.6)]Pasadena, California, U.S.A.


    [color=rgba(0, 0, 0, 0.9)]APPLICATION DEVELOPMENT
    Implemented robust, numerical algorithms into analysis and operational software set on a number of computer platforms. Member of a lean development team that developed a large-scale statistical orbit determination filter to process ground-based radio metric spacecraft/satellite tracking data.

    ADVANCED SYSTEM ANALYSIS
    Led cost savings efforts to identify Workstation- and PC-based Commercial and Government Off The Shelf (COTS/GOTS) software products for improving the efficiency of day-to-day operations and systems development through better visualization capabilities.

    RESEARCH & DEVELOPMENT
    Performed analysis and evaluation of Earth-based radio metric data acquisition and filtering methods for high-accuracy orbit determination of interplanetary and Earth-orbiting spacecraft. Advanced research studies involving the development of new spaceflight mechanics technologies with application toward current and future solar system exploration missions. International collaboration between Russian and Japanese counterparts in assessing radio tracking capabilities of highly elliptical Earth orbiting radio astronomy platforms.



  • Mathematical Analysis Engineer[color=rgba(0, 0, 0, 0.9)]The Boeing Company[color=rgba(0, 0, 0, 0.9)]1985 年 7 月 – 1989 年 8 月  4 年 2 个月
    [color=rgba(0, 0, 0, 0.6)]美国 大西雅图地区



    [color=rgba(0, 0, 0, 0.9)]ALGORITHM DEVELOPMENT
    Designed and developed mathematical and statistical techniques to formulate computer oriented algorithms for aircraft avionics system modeling, system analysis, and design.

    RESEARCH & DEVELOPMENT
    Numerical error covariance analysis and simulation studies for suboptimal and Kalman filter design strategies and assessments of flight system performance predictions. Flight test and evaluation of inertial measurement sensors.




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资格认证语言能力
  • Spanish (limited)


出版作品
  • A Multifaceted Approach to Modernizing NASA’s Advanced Multi-Mission Operations System (AMMOS) System ArchitectureAmerican Institute of Aeronautics and Astronautics2014 年 5 月

    This paper describes a set of core architectural tenets that are intended to drive a future-state transformational system architecture for the AMMOS. Work has already initiated on a number of AMMOS modernization tasks that embody some of the core tenets described herein, and in fact serve as the primary source of input to this paper. The work products and artifacts associated with those modernizations initiatives are scattered in many different resources and workspaces and not easily accessible to the interested stakeholder. These core tenets are intended to provide a unifying message for the MGSS program office to help articulate its vision of a future-state architecture for the AMMOS.

    作者:
  • Navigating the SOA Open Standards Landscape Around Architecture,” H. Kreger and J. Estefan (Eds.), White PaperThe Open Group, OMG, OASIS2009 年 11 月

    This document explains and positions architectural standards for SOA reference models and ontologies, reference architectures, maturity models, SOA modeling languages, and open standards
    work related to the topic of SOA governance. It also outlines the agreement on core SOA and SOA
    governance concepts. This document is intended to serve as a guide to the reader to help differentiate and select specifications appropriate to their needs.

    作者:
  • Survey of Model-Based Systems Engineering MethodologiesInternational Council on Systems Engineering (INCOSE)2008 年 6 月

    The purpose of this INCOSE Technical Data report is to provide a cursory description of some of the leading Model-Based Systems Engineering (MBSE) methodologies used in industry today. It is intended that the material described herein provides a direct response to the INCOSE MBSE Roadmap element for a "Catalog of MBSE lifecycle methodologies".

    作者:
  • Exploring Open Software Standards for Enterprise e-business ComputingInternational Business Machines (IBM)2000 年 8 月

    One of the most difficult challenges facing IT managers today is the need to rapidly accelerate development and deployment of e-business applications in order to meet the demands of the market place. Yet despite this speed to market strategy, a quality product still has to be produced, otherwise, it will not stick. By adopting open standards, systems, and practices, an organization will be in a much better position to make “best of breed” technology choices that will enable the enterprise to extend, rather than rewrite, existing applications. Moreover, the adoption of open technology standards means that applications can be readily ported to different development and runtime environments as needed because they are not tied to a specific vendor or proprietary solution.

    作者:
  • Sensitivity of Planetary Cruise Navigation to Earth Orientation Calibration ErrorsNASA/JPL Telecommunications and Data Acquisition Progress Report1995 年 11 月

    A detailed analysis was conducted to determine the sensitivity of spacecraft navigation
    errors to the accuracy and timeliness of Earth orientation calibrations. Analyses
    based on simulated X-band (8.4-GHz) Doppler and ranging measurements acquired
    during the interplanetary cruise segment of the Mars Path¯nder heliocentric
    trajectory were completed for the nominal trajectory design and for an alternative
    trajectory with a longer transit time. Several error models were developed to characterize
    the e®ect of Earth orientation on navigational accuracy based on current
    and anticipated Deep Space Network calibration strategies. The navigational sensitivity
    of Mars Path¯nder to calibration errors in Earth orientation was computed for
    each candidate calibration strategy with the Earth orientation parameters included
    as estimated parameters in the navigation solution. In these cases, the calibration
    errors contributed 23 to 58 percent of the total navigation error budget, depending
    on the calibration strategy being assessed. Navigation sensitivity calculations
    were also performed for cases in which Earth orientation calibration errors were not
    adjusted in the navigation solution. In these cases, Earth orientation calibration
    errors contributed from 26 to as much as 227 percent of the total navigation error
    budget. The ¯nal analysis suggests that, not only is the method used to calibrate
    Earth orientation vitally important for precision navigation of Mars Path¯nder, but
    perhaps equally important is the method for inclusion of the calibration errors in
    the navigation solutions.

    作者:
  • Precision X-Band Doppler and Ranging Navigation for Current and Future Mars Exploration MissionsAmerican Astronautical Society (Advances in the Astronautical Sciences, Vol. 84, Pts. 1 & 2)1993 年 4 月

    This paper describes a navigation error covariance analysis of two scenarios derived from the Mars Observer mission and the planned Mars Environmental SURvey (MESUR) Pathfinder mission, respectively. The analysis was performed to establish the potential navigational performance of the X-band tracking system in NASA's Deep Space Network, and to evaluate the sensitivity of the predicted performance to variations in the quantity of data acquired, the ground system error modeling assumptions, and data reduction schemes. The simulated data arcs used in the analysis are representative of the actual data arcs that will be used to predict the aim point for the Mars orbit insertion maneuver, in the case of Mars Observer, and the interplanetary trajectory aim point corresponding to the target Mars landing site in the case of MESUR Pathfinder. The results indicate that with a suitable sequential data reduction scheme and accurate calibrations of instrumentation, transmission media, and platform model parameters, navigation accuracies of 5 to 15 km (1 sigma) can be achieved, equivalent to 15 to 40 nrad in geocentric angle uncertainty.

    作者:
参与组织
  • International Council on Systems Engineering开始日期: 2005 年 10 月
  • The Planetary Society开始日期: 1989 年 9 月


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