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OV-5 and OV-7. Dennis E. Wisnosky Wizdom Systems, Inc. 630.357.3000 Dwiz@wizdom.com. NERVANA. Activity and Data Modeling in Perspective. IDEF. Created in the late ‘70s IDEF stands for Integrated DEFinition Language. Provides a common, public-domain language for modeling and describing:
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OV-5 and OV-7 Dennis E. Wisnosky Wizdom Systems, Inc. 630.357.3000 Dwiz@wizdom.com NERVANA Activity and Data Modeling in Perspective www.feacinstitute.org 202-546-7927
IDEF • Created in the late ‘70s • IDEF stands for Integrated DEFinition Language. • Provides a common, public-domain language for modeling and describing: • Processes • Data • Requirements • Functions • Has been used to improve hundreds of enterprises • IDEF is a standard modeling technique for all US Government agencies, and many private companies. www.feacinstitute.org 202-546-7927
Corporate Policies Materials Vision Mission Culture Customer Corporate Resources Products Where do the pieces fit? IDEF Builds Models How do the pieces fit? www.feacinstitute.org 202-546-7927
Models www.feacinstitute.org 202-546-7927
Effective Engineering Requires a Blueprint • Models are a basic necessity for building everything from houses to cars; marketing plans to financial forecasts. • Modeling gives you a clear picture of the current situation, as well as a plan for the future. • A model helps concepts evolve to plans and prototypes. • Modeling a structure or solution is especially worthwhile when implementation goals are obvious and important. www.feacinstitute.org 202-546-7927
Blueprints become the Change Management Architecture And a Structured Approach to Enterprise Engineering, to Knowledge Management, to Workflow ………. www.feacinstitute.org 202-546-7927
Develop Prototypes and Implement Change Strategically Target Projects for Improvement Model the Activities Simulate Changes Analyze Time, Cost and Quality Create A Vision of Change Activity Models are a Mandatory Operational View www.feacinstitute.org 202-546-7927
IDEF is toolfor... ...describing ...managing ...and improving complex processes and systems To do this, we need a common framework for visualizing the processes and the systems they support, and a methodology for representing both. www.feacinstitute.org 202-546-7927
Opportunity • Frustration Innovation Involution Consolidation Rationalization Competition Rapid Growth A process is any set of managed,predictable behaviors. Business Process Lifecycle www.feacinstitute.org 202-546-7927
Process Management The goal of process management is to minimize costs through: • Rationalization, • Consolidation, • Involution, • and to maximize the benefits of innovation, growth, and change. www.feacinstitute.org 202-546-7927
Analysis • Entropy/ • Maladaption • Specification • Evolution • Design Operation Construction/ Integration • Installation Every Endeavor of Man and Beast has a Natural Process • Engineering Process • Lifecycle www.feacinstitute.org 202-546-7927
What are the Processes Doing? • The goal is to improve the management of both tangible and intangible assets according to a long-range plan while achieving continuous improvement. Since assets are all that an organization (and men and women) have, this is all that the goal can be. www.feacinstitute.org 202-546-7927
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IDEF (0 and 1X) Is the unified modeling methodology that embraces management and user concerns in systems and process management. www.feacinstitute.org 202-546-7927
Activity models are graphic representations of functions and processes. Are hierarchical Decomposed to the needed level of detail. Track inputs, controls, mechanism, and outputs. IDEF0 Data models define the information requirements of the process. Used for building computer applications, databases, and repositories. Track flow of information through functional areas. IDEF1x Activity Models Data Models www.feacinstitute.org 202-546-7927
IDEF0 Process Model IDEF1X ER Data Model IDEF1X EAR Model I2 C1 C2 PKEY 1 I1 I2 ATTR 1 ATTR 2 ATTRn O1 I1 O2 O1 Process I2 O2 O2 C2 C1 PKEY 1 PKEY 2 M1 ATTR6 ATTR7 ATTRm IDEF Model Integration www.feacinstitute.org 202-546-7927
Varieties of Models Models come in many shapes and sizes: • Process Vs Data models • Text Vs Graphic-based models • High- Vs Low-level models • Flat Vs Hierarchic models • Degree of rigor in the modeling methodology • Representation of additional detail: timing, data states, business rules... www.feacinstitute.org 202-546-7927
Model Vs Reality Models represent reality in a form that can be easily controlled, evaluated, and manipulated. Complex, poorly understood processes become manageable when broken down into their component parts. Models can be used for analysis of the simplest processes; or the most complex systems with lifecycle costs in the millions of dollars www.feacinstitute.org 202-546-7927
Activity Modeling links the organization to its strategic goals. • Simplification of Value-Added Activities • Consolidation of Value-Added Activities • Elimination of activities that do not add value • Automated support only after basic business processes are efficient and effective. • Provides the basis for analysis and continuous improvement. www.feacinstitute.org 202-546-7927
Levels of Analysis • Strategic overview-- examination of the corporation as a whole, focusing on mission and long range goals and objectives. • Mid-level analysis of management, culture, and organizations. • Detailed look at individual processes. All analyses are done in terms of time, cost, and quality www.feacinstitute.org 202-546-7927
Process Analysis IDEF models gather the data for analysis: Cost: Activity-based costing, functional economic analysis Time: Timeline, cycle time, run time, turn-around times, sequence, hierarchy, dependencies. Quality: Quality metrics, comparisons between past, present, and future , TQM, CQI. Redundant, over-lapping, non-value-added processes become apparent while building the model. www.feacinstitute.org 202-546-7927
System Process Levels of Integrated Analysis Strategic Overview Systems Functions/ Specific Processes Program Structure/ Core Activities Logical Models of Data and Processes www.feacinstitute.org 202-546-7927
IDEF Methodology Components • IDEF0 - Function and process modeling Answers the question - WHAT DO I DO? • IDEF1X - Entity-Attribute-Relationship data modeling- Answers the question - WHAT DO I NEED TO KNOW TO DO WHAT I DO? • IDEF2 - Process simulation modeling Answers the question - WHEN DO I NEED TO KNOW WHAT I NEED TO KNOW , TO DO WHAT I DO? www.feacinstitute.org 202-546-7927
Benefits • IDEF0 reveals redundant and non-value-added processes. • IDEF0 documents the AS-IS-- the processes, the relationships between them, and the logical breakdown of those functions into their sub-processes and properties for baseline evaluation and further analysis. • IDEF0 begins the road map from the AS-IS to the TO-BE. www.feacinstitute.org 202-546-7927
Benefits(continued) • IDEF0 provides a means for communicating and presenting results. • IDEF0 establishes a forum and a structure for data gathering and knowledge acquisition. • IDEF0 identifies opportunities for improvements. • IDEF0 reveals data relationships and incongruities. • IDEF0 identifies and categorizes information entities which form the foundation for information modeling (IDEF1x). www.feacinstitute.org 202-546-7927
IDEF is not a substitute for... • thinking... • intelligence... • or experience, • But it can expose their absence. www.feacinstitute.org 202-546-7927
This concludes Activity and Data Modeling in Perspective www.feacinstitute.org 202-546-7927
Now we can begin the important work! www.feacinstitute.org 202-546-7927